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Like Brother and Sister

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"She loves me. She's like the big sister I never had. Only, you know... short."

Sometimes, two characters of the opposite sex are very close — so close that you might expect them to be dating. Except they're not. They admit that they matter a great deal to each other, that they would die for each other, that they can't imagine life without each other. They aren't just any pair of friends. They're as close as family. They're like brother and sister!


Often, other people don't believe this. They assume that the couple must be dating — or at least that they secretly wish they were. When the couple say they are like brother and sister, they will point out the one tiny but debilitating flaw with their theory: They are not brother and sister.

The couple are at pains to explain that their love is completely platonic with no sexual attraction on either side. No matter how other people view them, they can't see each other in that light. They love each other, like siblings love each other, but they're not in love. They really are "just" friends.

The Greek word for this love is storge, as explained in detail in C. S. Lewis' book on the subject, The Four Loves. The fact that this doesn't stop everybody is a whole other can of worms all together. Relative Error would be somewhat the inverse of, but definitely comparable to, this trope.


Platonic Life-Partners is a sub-trope in which the characters are not only close, but their relationship is the primary one in their lives. If you can imagine the same-sex versions of the characters being Heterosexual Life-Partners, then they belong under Platonic Life-Partners. Of course, almost all instances of Platonic Life-Partners fall under this trope, but to avoid redundancy they should not be listed on this page.

Simply being friends doesn't make a pair an example, nor does just being True Companions. Because most childhood relationships are inherently platonic, friendships between children do not qualify unless they continue into adulthood and remain platonic. Contrast Just Friends for when this does actually blossom into romance. Not to be confused with Unlucky Childhood Friend, in which one side does have feelings for the other. Compare with Stupid Sexy Friend. The trope may be averted if the relationship becomes a Childhood Friend Romance or (for actual siblings) subverted by Brother–Sister Incest. This trope is sometimes the result of the No Hugging, No Kissing rule.


Fanfics may confer such a bond onto characters for one of two reasons: to make up for the characters' lack of actual siblings, or to justify unwanted attachments for the sake of shipping; the unwanted character needs not die for the ship.


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    Anime & Manga 
  • Akame ga Kill! has Tatsumi and Akame, who become Fire-Forged Friends working as assassins for Night Raid. Tatsumi trusts Akame enough to the point that he will want Akame to kill him if his Imperial Arm, Incursio, tries to take over his body. Akame trusts him likewise, to the point that he is the only Night Raid member Akame trusts to help deal with her troubled little sister, Kurome, who wants to kill her. Their relationship, however, is strictly platonic, as Tatsumi is in love with Mine, whom he marries at the end of the manga.
  • Bleach: Toshiro Hitsugaya and Momo Hinamori were raised together by the same old woman whom they call "grandmother", a Rukongai custom where strangers form family groups because it's nearly impossible to find blood relatives.
  • Kouyou Ozaki and Nakahara Chuuya became this in Bungo Stray Dogs. The latter was under tutelage of the former, and is notably the only one to adress her as 'ane-san', a Japanese honorific specific to an older, mature sister figure (in contrast to 'onee-chan').
    • Atsushi Nakajima and Kyouka Izumi also count. Even at their first meeting (when they were still enemies), Atsushi saved her from suicide bombing. When Kyouka joins Atsushi's side, they are often seen clearing missions together, most notably the preventing of the whale ship's descent. In the movie, fate strings them together again.
  • Tsubaki and Black☆Star from Soul Eater could also count. Tsubaki is pretty much like Black☆Star's older sister; Black☆Star is the irritating little kid Tsubaki adores and detests at the same time.
  • With the possible exception of Sanji and Brook, all the male Straw Hats in One Piece are this to Nami. Robin is more of a Team Mom.
  • Fairy Tail:
    • One could argue that the relationship between Natsu, Gray, and Erza amounts to this. Shipping aside, they interact with each other and protect each other with all the gusto of very close siblings, especially Natsu and Erza. When in a bath, she shows no embarrassment in regards to them being included (due to her upbringing and general lack of a nudity taboo regarding the two) and will occasionally invite them to bathe with her, much to the chagrin of any other girls in the bath with her.
    • Played more straight with Natsu and Wendy, with Wendy lampshading it in chapter 423
      Wendy: I admire him... He's something like a big brother to me.
  • Negima! Magister Negi Magi: Ship Tease aside, Negi and Asuna's relationship is mostly like this, with Asuna seeing Negi as a little brother she must protect. In reality, he's probably actually her nephew. Great-Grandnephew anyway, with the number of greats unknown. Point is, she is almost certainly the sibling of one of his direct ancestors.
  • The main theme of Gunslinger Girl is the relationship between each team of cyborg girl assassin and their handler, referred to as a "fratello" (Italian for "sibling"). Also seen in terrorist couple Franco and Flanca, who choose their names in a deliberate invocation of their close but non-sexual partnership.
    Hilshire: Say, what did she mean by we should "Talk about love"?
    Triela: I think she's got the wrong idea about us.
    Hilshire: We don't need to talk about love. We're fratello.
  • In 6-OVA Animated Prequel to the Japanese monster movies, Zeriam, known as "IRIA: Zeiram the Animation", the title character Iria is shown as an apprentice to her 'older brother' Guren, whom is later believed to be killed by Zeriam, yet hinted at possibly still being alive. During one scene, the orphan Kei asks Fujikuro, "Isn't he her brother, though?" Fujikuro replies, "Yeah, I guess you could say they're like brother and sister." However, the story never really develops further on this comment.
  • Hetalia: Axis Powers:
    • Hungary and Poland are hinted to be this. Makes sense considering the traditional friendship between the countries in Real Life.
    • Can also apply to Switzerland and Liechtenstein though their relationship can also be seen as Not Blood Siblings.
    • Word of God also describes France's and Monaco's relationship like this, at least from Monaco's side. Confirmed when she calls him nii-san, or big brother, in one comic.
  • Although it initially appears that there's romantic tension between Erin and Melan in Brigadoon: Marin and Melan, she later reveals that he is like a brother to her.
  • Dragon Ball: Bulma and Goku have been friends since childhood in the original Dragon Ball and neither has ever expressed romantic interest in the other In-Universe. The closest they ever came was when Bulma saw Goku as an adult for the first time and remarked on how handsome he'd turned out, and even that could be interpreted as sisterly affection rather than genuine romantic interest, especially since she also made the same remark about her son Trunks later on in Dragon Ball Z. Although, Bulma later admitted on Namek that she wished Goku was her boyfriend. She also puts more faith in Goku to solve the current crisis even more than her own husband, for a time at least. Goku also admits to Vegeta that he thinks Bulma's prettier than Chi-Chi, but outright says he's not interested when his Delayed Onset Ki Disorder makes his Instant Transmission drop him in front of her while she's in nothing but a Modesty Towel.
    • This also applies to Marron's relationship with Goten and Trunks whom are romantically inclined to Valese and Mai respectively. They act as older brothers towards Marron in both Z and Super. By the time of Z's finale Goten is already dating women of his age; Both versions of Trunks are clearly in love with Mai.
  • In Naruto, Word of God states that Naruto and Sakura's friendship evolved into this in the end. The Last: Naruto the Movie even gives Sakura the role of Cool Big Sis, helping Naruto in his relationship with Hinata. In retrospect, this can actually be seen throughout the series, where like Tsunade was with Nawaki, their friendship felt more akin to the relationship between an older, well-meaning, though at times overbearing sister and a equally meaning, tall, happy, yet somewhat annoying younger brother.
  • Ban and Himiko from Get Backers. After spending almost 95% of the series like this, the 37th volume reveals that they might not be completely unrelated after all—but the exact nature of their blood relationship is not specified.
  • This is how Flit feels about Emily in Mobile Suit Gundam AGE, but he eventually marries her to make her happy after the girl he really wanted to be with is killed in battle.
  • Winry and Edward are this in the first Fullmetal Alchemist anime. Averted in the manga and in Brotherhood (the second anime); in these, she has this sort of relationship with Alphonse but is obviously Edward's love interest.
  • In Ame Nochi Hare, the boys in two couples feel this way towards their younger fiancées (one was an Arranged Marriage), causing serious trouble for one pair. They were also part of a Sibling Triangle, which complicated things.
  • Fate and Chrono from Lyrical Nanoha had this dynamic during the second season. It stops applying afterwards, but only because they became actual brother and sister following Fate's adoption.
  • Played with in the manga Anelog, when the main character's little brother, Akira, and her best friend, Kasumi, first get a Day in the Limelight chapter together Kasumi muses about how she still sees Akira as more of a little brother after so many years. Then he catches her when she falls, and she suddenly realizes how strong and handsome he'd become. By their next joint chapter, she's bemoaning that fact that throughout their time hanging out in the arcade Akira probably only saw her as a sister figure instead of the pretty girl next door.
  • Horimiya:
    • Miyamura and Sawada develop this sort of a relationship soon after the latter is introduced due to being next-door neighbors and Sawada having recently lost her older brother. Also doubles as a Sibling Triangle since Sawada has a crush on Miyamura's girlfriend.
    • The same thing goes for Hori and Sengoku, who have known each other their entire lives (their parents went to high school together) and have zero sexual tension. It's even suggested that they were bathing together as late as their first year of high school.
  • Yu Yu Hakusho: Yusuke and Botan are close friends and they care for very much each other and basically starting when Yusuke died at the beginning of the series. Botan being a Shipper on Deck, she's very supportive towards Yusuke and Keiko's relationship and a Love Triangle never occurred between them. Since Yusuke and Botan are also partners, she's has more knowledge about Yusuke's job and can support him more effectively than Keiko does.
  • In My Next Life as a Villainess: All Routes Lead to Doom! Alan loves Mary like a little sister even though she's his fiancee. If things had gone like they were supposed to she would be in love with him, but since Katarina messed things up Mary's feelings are also platonic in nature. Though since Mary can be a bit sneaky it's hard to tell how much she cares about him.
  • Kaguya-sama: Love is War is big on well developed platonic relationships between both genders in its cast, something which sticks out even more by the fact that it is primarily a romance series. Some highlights include:
    • Kaguya and Ishigami, who develop a sibling-like bond over the course of the series, and it's as endearing as it is hilariously ironic since earlier chapters had him afraid that she was going to kill him and her viewing him as little more than an insect. Their complete lack of romantic tension is even recognized by the rest of the school, as there's a subplot in the light novel spin-off where they pretend to be dating in order to deter one of Kaguya's stalkers, and everyone just assumes that she's tutoring him (not to mention the fact that one of the main things that Kaguya does in the big sister role in the manga is try to help Ishigami win the heart of his crush Tsubame for the sake of improving his self-confidence).
    • Hayasaka and Shirogane end up becoming texting buddies after the events of the mixer, with him becoming a semi-Secret Keeper for her role as Kaguya's valet. Hayasaka even admits to Kaguya that she has zero interest in pursuing a romantic relationship with him, save for that time Kaguya got her to try seducing him to prove a point and she very nearly fell for him.
    • Maki develops a rapport with both Shirogane and Ishigami, repeatedly coming to them to vent about her romantic woes. Much like with Kaguya, she becomes something of a Cool Big Sis for Ishigami.
    • Shirogane and Iino were initially The Friends Who Never Hang, but after having a moment of bonding over poetry, the two start getting much closer, and their relationship develops somewhat similarly to Kaguya and Ishigami's relationship, with Shirogane acting as a big brother to her, and being there for her whenever she needs emotional support or confidence. While Iino admits that Shirogane would probably be her type, she is all too aware of Shirogane's romantic antics with Kaguya, and fully supports their relationship. Likewise, Shirogane knows that Iino developed a crush on Ishigami, and wants to support her because he didn't want to leave her alone in this development with no support (as her own best friend is rooting against her).
  • Keima and Elsie from The World God Only Knows. Though their relationship isn't without its Ship Tease moments, their primary relationship is based on Keima acting like the aloof older brother and Elsie being like the irritating little sister he never asked for. And thanks to Elsie performing a Cosmic Retcon at the end of the series, they actually are brother and sister.
  • Mao and Sousuke maintain this relationship in Full Metal Panic!, with Mao viewing Sousuke as something of an awkward younger brother and Sousuke coming to see Mao as the Cool Big Sis. Mao also appears thoroughly immune to Sousuke's almost supernatural ability to draw romantic attention despite knowing him longer than any other girl in the series. And stays that way. When Sousuke imitates Kurz (hoping to cheer her up after his apparent Death by Sex) by jokingly propositioning her, Mao just delivers a Flat "What" before giving him a noogie.
  • In Sing "Yesterday" for Me, Shinako sees Rou, the younger brother of her dead crush, as a little brother figure, and treats him in a motherly fashion, cooking his meals and nagging him about his schoolwork. The two are close and she spends a lot of time at his house. The feeling is not at all mutual, however, as Rou harbors romantic feelings for her.

    Comic Books 
  • Hulk and She-Hulk, although they are cousins, and were partially raised together.
  • Wonder Woman and Superman: they've been shipped together for years (both in-universe and out, to a lesser degree), and are frequently paired up in Elseworlds and Alternate Universes, but they've never been anything more than close friends in the main continuity. A common Alternate Character Interpretation is that while they do love each other, it's just that Clark loves Lois Lane more, and Diana respects that so they keep their relationship at this level, and the New 52 turned them into an Official Couple for a while. However, they ended up as Amicable Exes, before being retgonned by DC Rebirth.
  • Superman and Supergirl are extremely close in most continuities.
  • In Elseworld's Finest: Supergirl & Batgirl, Barbara Gordon alias Batgirl and Bruce Wayne have this kind of relationship. The Wayne family took her in after she was orphaned, and although she changes clothes around Bruce, there doesn't seem to be sexual tension between them.
  • Teen Titans:
    • Dick Grayson and Donna Troy from the New Teen Titans. They really act like brother and sister and shared leadership of the team. note  Which is surprising given that he is the Chick Magnet and she looks like a younger version of Wonder Woman. Also, they both really prefer redheads (see Oracle and Starfire on his end, Red Arrow and Terry Long on her end).
    • Dick also sees his relationship with the post-Crisis Supergirl this way. On the other hand, Supergirl was attracted to him at the beginning, but after a while she started treating him like a big brother.
  • Dwight and Miho from Sin City have this relationship.
  • Storm and Gambit from X-Men have had this relationship ever since they met in Cairo. Storm got Gambit into the team and they've been tight ever since, despite Gambit's secrets putting a strain on their relationship.
    • Rogue had this kind of relationship with Nate Grey, being one of the few people in the 616 universe that he completely trusted. He usually acted as her grumpy little brother, but generally listened to her, while she was the sympathetic and occasionally protective big sister (including giving Bishop a memorable bitching out for all but attacking Nate on suspicion of being suspicious). Amusingly, thanks to the fact that they both had a Skunk Stripe in brown hair, they could actually pass for siblings quite easily.
  • Chase Stein and Karolina Dean from the Runaways. They're close enough that Chase even stopped using "gay" as a pejorative after Karolina came out as a lesbian.
  • Cloak & Dagger: Cloak and Dagger, in most incarnations, are more like siblings than anything else. They were initially written as runaways who teamed up to survive, and the nature of their powers means they have to stick together to mitigate the worst of the side effects.
  • To Roxy's chagrin she learns Superboy sees her as a sister, which makes sense as they've been living as a dysfunctional family for most of his life. Over time her crush on him fades and she finds herself viewing him as family herself.
  • In the Golden Age of Comics Steve Trevor and Etta Candy were good friends who enjoyed snarking at each other and each trusted the other to have their backs in a fight, or even to make excuses for them to escape an unwanted conversation. The only person they were closer to than each other was Wonder Woman.

    Fan Works 
  • Abraxas (Hrodvitnon): : Vivienne Graham's father-daughter relationship with Dr. Serizawa is a variation. It's mentioned in Chapter 4 that Monarch operatives debated whether or not the nature of their closeness was romantic.
  • The Elfen Lied fic Family Sticks Together depicts such a relationship between Kaede (aka Lucy/Nyu) and Original Character Alex. At first, he becomes her Only Friend at the orphanage, but within a few chapters, they've become so close that Kaede asks Alex to be her brother, and he happily agrees.
  • In the pro wrestling AU Mountain Murders trilogy of stories, small-town police officers Seth Rollins and Trina Copley are frequently described as being like this.
  • Child of the Storm:
    • Jean Grey quickly more or less adopt Harry as the little brother she never had. Emotionally, he happily reciprocates, though his hormones take a while to catch up. The fact that they're second cousins helps. In any case, threatening him will quickly cause Jean to go nuclear (emphatically not reassuring in an Omega Class psychic), and in the sequel she coolly informs Coulson that she thinks that SHIELD are going to even breathe the wrong way towards Harry or her recently recovered stolen at birth twin sister, Maddie Pryor a.k.a. Rachel Grey, then she will destroy SHIELD singlehandedly.
    • Harry and Hermione are like this, as per usual. Amusingly, in one alternate reality, they were, albeit by adoption - since Hermione's birth mother, Wanda Maximoff, is Harry's godmother.
    • Wanda and Thor have this dynamic: they're old friends from their time with the Order of the Phoenix (Thor having been incarnated as James Potter), and since Wanda is Harry's godmother and maternal figure of choice since Jane's a bit young, they're essentially platonically co-parenting Harry.
  • DC Nation:
    • It takes the Troia and Nightwing dynamic and cranks it to eleven. One of the alternate universe plotlines even implied that they may have been brother and sister in several of Donna's other "short and unhappy lives."
    • In the same universe, Connor Hawke will say his feelings for Mia (Speedy) are like this... the truth is a bit more complex.
  • In Titans and the Lost Boy, Starfire apparently decides that Ryouga is similar to a Tamaranian. This leads to her growing closer to him, which eventually leads to this kind of relationship. Said relationship persists throughout the sequel, Dark Titans, and the sequel/crossover with The Road To Cydonia, ''Reflections Lost on a Dark Road''.
  • In the ''Subroutine'' Fan Verse (TRON: Legacy / Tron 2.0 Patchwork Fic), Jet and Quorra fall into this pattern.
  • In A Study in Regret, Inspector Lestrade and Mary Watson develop this relationship in the story's Rescue Arc.
  • In My Little Castlevania, this describes Shatterstorm and Spitfire's relationship. And given Shatterstorm's usual feelings towards mares, it's rather refreshing.
  • Ponies One Half:
    • Ranma and Pinkie Pie have this kind of relationship.
    • Emi and Shou as well. They are both otaku, have many of the same interests and are rarely seen without the other. Despite that, they have no romantic interest in each other, with Shou actually being more interested in Momo, Pinkie's talented human form.
  • In the Warrior Cats fic Close, Firestar and Sandstorm's canonical romance is described as this, conveniently allowing Firestar to mate with Tigerstar. The fact that he mated and had kits with her is glossed over.
  • The grown up Godzilla Junior and Mothra Lea became this by time we meet them in The Bridge. They've been close friends and allies for over a decade since they first teamed up, able to read each other better than anyone. For all intents and purposes, they are a platonic Battle Couple. (This is in huge contrast to how their parents got along... or rather, didn't.)
  • Breda, Falman, Fuery, and Havoc have this relationship with Riza Hawkeye in the Elemental Chess Trilogy. Havoc lampshades it in his turn at the narrative, thinking of the group as "a band of brothers (and one sister, of course)". She has a similar bond, though to a lesser extent, with the Elric brothers.
  • In the Danny Phantom/Beetlejuice Crossover Say It Thrice, this may be the best way to describe the relationship between Betelgeuse and Lydia. They've grown, in the two years since the events of the film, into devoted friends who clearly love each other, but there's nothing romantic about it. The last chapter even has Jazz calling Betelgeuse Lydia's "crazy big brother who'd do anything for [her]."
  • Prince Vince views Lydia this way in the Contractually Obligated Chaos series, and goes so far in the second story as to make the relationship official, at least by Neitherworld law. This makes her a member of the Neitherworld royal family, which has assorted consequences throughout the remainder of the series.
  • The Heralds of Andraste describe themselves this way in All This Sh*t is Twice as Weird, with Mahanon noting that Victoria is the closest thing he's ever had to a sibling. She actually has three older siblings of her own; it's just heavily implied that she likes him better. She has a similar, if less intense, bond with Dorian as well.
  • Ororo and Scott become this in Stars from Home. Initially, Ororo is still quite young, but as she grows up this becomes Mistaken for Romance—although they both insist it's platonic and he's really not her type.
  • Original Character Ty and Pyrrha Nikos in So We're A Couple, to the point that Ty repeatedly greets and refers to Pyrrha as "Sis". Though Pyrrha states that Ty is a "cousin from her mother's side", it's apparent right from the category tags of the fic that that particular situation won't be an issue. Considering the usual...flavor of OC pairings in RWBY, it's an interesting and welcome change of pace.
  • To Hell and Back (Arrowverse): Oliver, Barry, and Kara are not interested in each other romantically, to the point that even the thought of it sickens all of them.
  • Always a Ranger sees original Pink Ranger Kimberly Hart (Mighty Morphin' Power Rangers) return to Tommy Oliver's life after he becomes the mentor to the Dino Thunder team, new Yellow Ranger Kira Ford in particular muses at one point that she has come to see Kim as a kind of surrogate older sister, to the point that Kim asks Kira to be a bridesmaid at her wedding.
  • Total Drama Legends: Throughout the story, Duncan and Zoey grow a strong bond, playfully teasing eachother, and frequently helping the other out during their relationship issues. At one point, Duncan explicitly admits that he views Zoey more as an annoying little sister when the idea of the two dating comes up.
  • In the Underworld AU fic “The Vampire Leader”, after Lucian's death during his attempt to escape the vampire fortress, his vampire lover Sonja and lycan protégé Raze become the leaders of the lycan rebellion, with Raze serving as its public face while Sonja provides her tactical expertise. While they work together for centuries, Sonja and Raze never consider taking the relationship further, at least partly out of respect for Lucian's memory, but they are each aware that they can trust the other with their lives, to the extent that Sonja had planned to make Raze the hybrid before circumstances prompted her to transform herself to face her father.
  • In The 100 fic Lightning Only Strikes Once, Clarke explicitly refers to Wells as the closest thing she’s ever had to a brother. For his part, while Wells was initially hurt when he realised that Clarke was now involved with Lexa, he later assures Lexa that he’s happy for them as he now retains his existing bond with Clarke rather than risk losing it by trying for something more and failing.
  • In Did I Make the Most of Loving You?, when Adama and Roslin's six-year-old son Liam is told that Kara is family during their first meeting, the boy immediately takes this to mean that Kara is the sister he asked for, and Kara tentatively accepts the title. Even after the infant Evelyn Adama is born after the destruction of the Colonies, all concerned parties make it clear that Kara can still consider herself Liam and Evelyn’s sibling even before she marries Lee.
  • Kimberly T's Gargoyles series all but explicitly features this kind of dynamic being established between Alexander Xanatos, the infant son of David and Fox Xanatos, and Bethany Marsden, the daughter of the Xanatos's new nanny Anne. Anne and Bethany are introduced in Unsolved Mysteries, which immediately establishes that Bethany is a part-fey like Alexander with exceptional magical potential, prompting Owen/Puck to suggest that Anne be hired as the family nanny so that he can teach Bethany while giving Alexander his lessons in magic. Bethany initially asks if Alexander will be her little brother, and while Anne establishes that he is only like a little brother, there is never any sign that everyone else does not basically consider the children siblings, with Lexington observing that Alex needed 'rookery siblings' when the gargoyles first learn that the Marsdens are moving in.
  • It’s not explicitly stated in Avenger of Steel, but while Clark has experienced potentially romantic moments with other women (including Natasha, Sif, Trish, Karen and Skye), his relationship with Jessica Jones is so far close but platonic ever since she learned that he had powers after he moved into her building, with both of them denying the idea that they’re romantically involved with varying degrees of disgust. Later, Raven, the would-be Black Sky and daughter of Trigon, appears to develop a similar affection for Superman, with the love she feels for him being compared to the love one might feel for an older brother.
  • Guilt Undone puts a more emotionally painful twist on this; when Daniel Jackson asks Samantha Carter out on a date, Sam tells Daniel that she only sees him as a brother, starting a chain of seemingly simple events that lead to Daniel getting killed on their next mission... and then, after spending the next month grieving how her friend and teammate died because she hurt his feelings, Sam realises on the one-month 'anniversary' of Daniel's death that she actually was in love with him.
  • In the Hannah Montana fic "Higher Power" and its sequels, Robbie Ray eventually marries Lilly's mother Heather, but while Lilly has no problem with the relationship or the idea of Jackson as a brother, she privately admits to her mother that she's really in love with Miley and actually wants to be more than a sister to her (although Miley eventually realises that she feels the same way).
  • AQUA: The First Step: Original Character Alexander Wallace of the RWBY fic becomes partners with Amber at Beacon Academy, and they eventually develop this relationship. Amber even remarks at one point that she's Alexander's sister "in all but blood."
  • This is more or less stated to be the nature of the relationships between various characters in Skyhold Academy Yearbook. It's perhaps most pronounced with Dorian and Evvy, especially since she's the closest thing he's ever had to a sibling.
  • One Game of Thrones fake screencap has an entirely logical if unfortunately accurate take on the trope:
    Cersei: You love him, don't you?
    Brienne: Like a brother, Your Grace.
    Cersei: [Blue Screen of Death]
  • In Communication, Taylor views Homura as this due to them both being a previous Host of Consensus.
  • I am [REDACTED]: Izuku explicitly describes his relationship with Melissa Shield as this.
  • White Sheep (RWBY): Salem took in Cinder Fall so she could be a babysitter for her son Jaune (her only other option was Tyrian). Jaune ends up seeing Cinder as yet another older sister, which Salem finds annoying because she thinks their babies would be adorable.
    Salem: I thought all boys lusted after their babysitters?
    Cinder: Wait, was that why you took me in?!
  • Although it's never stated explicitly, Obi-Wan in Star Wars: Lineage essentially sees Bant as his little sister, a sentiment she returns. They snark at each other, she bosses him around, and he displays quite a bit of Big Brother Instinct, but it's always clear that a) they love each other, and b) there's absolutely no Ship Tease between them.
  • This Bites! develops this relationship between Jeremiah Cross and Nico Robin, with Cross working to make Robin open up to the Straw Hats earlier than canon to prevent her from surrendering herself to Cipher Pol in a futile attempt to protect them. Of course, their relationship usually ranges from teasing to confining with each other, with both referring to each other as "little brother and older sister" by the end of Enies Lobby.
  • In Son of the Sannin, Naruto admits to viewing Fu as a sister while training to tame their tailed beasts due to their shared status as jinchuriki and the past several months they've spent together. Fu is overjoyed at this admission because she's always wanted a little brother... to torment.
    Fu: (while giving him a noogie) Feel my sisterly love!

    Films — Animation 
  • Lilo & Stitch has the titular duo. He's supposed to be her pet, but their relationship is very much like that of loving siblings, They squabble, fight, forgive, play and love each other. She sometimes also seems almost ike a mother to him.

    Films — Live-Action 
  • According to Johnny Depp, this is the relationship between Alice and the Hatter in Tim Burton's Alice in Wonderland (2010).
  • Marvel Cinematic Universe:
    • Natasha Romanov and Steve Rogers seem to have this relationship following Captain America: The Winter Soldier; she spends most of it trying to set him up with dates and make constant jokes about his advanced chronological age, while Steve becomes uncomfortable when having to fake being lovers in public—though he also doesn't seem to mind her making out with him as part of that faking at all, with the two having genuine chemistry. After that, however, they settle into this dynamic, with Natasha developing an interest in Bruce, and the two of them playing team parents to the New Avengers at the end of Avengers: Age of Ultron.
    • In Avengers: Age of Ultron, Natasha's dynamic with Hawkeye also appears to be this, as he is Happily Married to a civilian and has some adorable tots who call the master assassin "Auntie Nat."
  • Scarlett from G.I. Joe: The Rise of Cobra claims that she and Snake Eyes are like this, presumably as a way of Ship Sinking for any fans who know about their relationship in other continuities.
  • The Hunger Games: Katniss Everdeen believes this to be her relationship with Gale in the first movie. Turns out it's not quite that simple. It also turns out to be an unrequited love from Gale's side.
  • In Kingsman: The Secret Service, Eggsy and Roxy are close and stick up for each other a lot, but there's no romance between them.
  • In Mission: Impossible III, after Lindsey's death, Luther notices how upset Ethan is about it and asks him whether something was going on between the two of them. Ethan negates and tells him that she was like a little sister for him.
  • In Written on the Wind, Mitch views his and Marylee's relationship like this. She doesn't, which leads to conflict between them.
  • X-Men Film Series
    • X-Men: First Class: Charles Xavier and Raven Darkholme grew up together as foster siblings for 18 years, and he introduces her as his sister to Amy. He later cites this when Raven, feeling insecure about her looks, asks if he would date her... although it falls a little flat coming right after he's answered the question with "of course" in reference to her human form, before she clarifies that she means in her real form.
    • X-Men: Days of Future Past: Lampshaded by the older Professor X when he mentions that Mystique was like a sister to him. It's later referenced when a nurse wonders if the blue, scaly woman at the Paris Peace Accords has a family, and Raven replies, "Yes, she does." On the plane ride to Paris, Charles argues that he had raised Raven to be something better than a killer. Erik is quick to point out that Charles didn't raise Raven — they grew up together. This is what it takes for Xavier to realize that Raven is not his to control.
    • X-Men: Apocalypse: Mystique tells Magneto, "I'm going to fight for what I have left," which specifically refers to her foster brother Charles.
    • While they never admit it out loud like Charles and Raven in the later films, Wolverine's entire relationship with Rogue through out the first three films is more than implicit.
  • In Blood Harvest, Jill tells Gary that she loves him like a brother after she wakes up to find him trying to rape her.

  • Adventure Hunters: Lisa's feelings for Artorius are complicated to say the least. The age difference is great enough for him to be her father but they work more like siblings. Regina thinks she's genuinely in love with him.
  • In the Arrows of the Queen trilogy, Herald trainees Skif and Talia try for an adolescent romance but continually find circumstances conspiring against them. Eventually they give up and swear blood brotherhood instead. The inevitable shipping is sunk once and for all when she ends up lifebonding to Dirk.
  • Betsy-Tacy: Betsy and Tony by the end of Heaven to Betsy.
  • In Chronicles of Chaos, Amelia, who has been in love with Victor since day one, has her hopes crushed when he curtly tells Colin to "stop molesting his sister." Victor is actually tacitly warning Colin to back off.
  • In the Circle of Magic series, this is the explanation for why none of the main characters are sexually interested in each other. They call each other foster siblings.
  • There's a bizarre, amusing variant mentioned in the Eighth Doctor Adventures novel EarthWorld: Anji considers the Doctor to be like a sister to her. No, he hasn't regenerated into a woman, but he's the Eighth, who's just shy of Camp Bisexual, at least in the novels. She considers him to be quite nice to look at but not her type, and he very rarely seems to fancy anyone. He does kiss her on the lips later in the book, but that's because he acts as if he had No Social Skills and has No Sense of Personal Space. And he opens up to her emotionally perhaps a bit more than he does to his Also-Not-Exactly-Heterosexual Life Partner, Fitz.
  • In Halo: The Fall of Reach, it is established John-117 (The Master Chief) is like this with childhood friend/surrogate sibling Kelly-087. They're very close even by the already close-knit standards of the other Spartan-IIs.
  • Harry Potter:
    • Harry assures Ron in the seventh book (and Viktor Krum briefly in the fourth) that he only loves Hermione like a sister. Until then it was basically a Running Gag that people were devising Imaginary Love Triangles involving the two. Within the books, Harry never demonstrates any romantic interest in Hermione. He notably Has a Type, in that the two girls he crushes on (Cho Chang, Ginny) share his interest in Quidditch, and initially attract him because they seem to be carefree, extroverted, and less girly than others, none of which fit Hermione's traits (she notably hates sports within the books). When he's desperate to find a partner for the Yule Ball, it doesn't occur to him to ask Hermoine. Furthermore, like virtually everyone in Hogwarts, he is surprised when Hermione cleans up nicely at the ball, and initially doesn't recognize her (unlike Ron who has a crush on her already). In the movies, Emma Watson's Adaptational Attractiveness and the greater on-screen chemistry she shared with Daniel Radcliffe's Harry, as well as the softening of some of Harry's more jockish traits, led the eventual resolution to come across as a Shocking Swerve to those who hadn't read the books.
    • Harry also has this more obviously with Luna Lovegood, who is basically the little sister and sibling he always wanted. He adores Luna's innocence, feels compassion for her aloofness, and for being picked on by others, and admires her for her courage and determination. At the end of Book 5, his grief for Sirius was lessened when he talked with Luna and felt brotherly sympathy for her being picked on, offering to help her. Years later, his youngest child with Ginny Weasley was named Lily Luna Potter after her.
  • In Hell's Children, the Damned are this way.
  • The Heroes of Olympus has at least two sets: Piper and Leo (she calls him the annoying little brother she never had) and Percy and Hazel (who gives him a "sisterly kiss" at one point).
    • A third set forms (or at least starts to form) between Reyna and Nico in Blood Of Olympus. Despite both being generally aloof characters, as their quest goes on Reyna ends up having to remind herself that Nico is not a little brother she needs to take care of, both share details of the darker aspects of their pasts that they've never told anyone else, and, to top it off, when Reyna hugs him at the celebration feast, he accepts it rather than pulling away, a show of affection Nico has reserved only for his sisters.
  • Victor and Ginny have this sort of relationship in Honor Harrington, although it's complicated somewhat by the fact that they frequently go Undercover as Lovers.
  • Played with in The Hunchback of Notre Dame in regards to the relationship between Pierre and Esmeralda. They are married, but it's In Name Only, and it's established early on that Esmeralda views him more like a brother or friend than a lover. Given her relationship with the rest of the characters, it's kind of a relief.
  • In The Hunger Games, Finnick and Johanna. While we are limited to what our first person narrator actually can observe, she considers their "years of friendship" is probably worth more in the end than their in-game alliance. They seem especially close even within the larger Breakfast Club of Hunger Games winners, just judging by the fact that Finnick can get away with hauling Johanna into the ocean and dunking her until she stops screaming. And there's no danger of things becoming romantic, as Finnick is in love with another victor, Annie.
    • Gale and Prim have this type of relationship. Katniss also sees her relationship with Gale as being this... until she finds out he sees things differently.
  • Jane Austen does this a lot.
    • It's amazing; you can practically hear Mr. Knightley's heart break when Emma uses these words when they're about to dance in Emma. His brother is married to her sister, and what she actually says is that they aren't quite related enough to make it improper for them to dance, but the implication is that they are this trope. They're not, of course, and they marry in the end.
      • This is also the best way to describe the relationship that she ultimately develops with Frank Churchill. The fact that his father is married to her former governess and mother figure lends itself nicely to the bond.
    • At the beginning of Mansfield Park, Sir Thomas Bertram is reluctant to adopt his niece for fear of Kissing Cousins. His meddling sister-in-law Mrs. Norris believes raising them like brother and sister will actually be their greatest protection against that trope. She's wrong.
    • In Sense and Sensibility, everyone ships Colonel Brandon and Elinor Dashwood... except themselves, because Brandon is in love with Marianne Dashwood and Elinor with Edward Ferrars. But they hang out more or less all the time, because they're the most rational and responsible people in their social circle and like each other a great deal. Elinor even notes that "they always conversed with confidence," so when she comes to realize that the others are shipping them, she at least understands why they would. He marries her sister in the end, which effectively does make them brother and sister.
  • In P. G. Wodehouse's Thank You, Jeeves, Bertie has to spend a good deal of time insisting that he and Pauline Stoker are this trope. No one buys it because they used to be engaged, even though Pauline is now in love with Bertie's friend Chuffy and Bertie is actively trying to set them up.
  • Journey to Chaos: Eric and Kasile develop this sort of friendship in A Mage's Power due to a Mind Link Mates event. By the end of Looming Shadow, he explicitly refers to her as "my little sister" complete with Big Brother Instinct when it comes to her suitors.
  • In The King's Avatar, Ye Xiu and Su Mucheng have a close relationship in this vein beyond being former eSports teammates. The prequel movie expands on this, showing Ye Xiu living with a young Mucheng and helping her older brother, Muqiu, look after her. Muqiu even tells Ye Xiu that Mucheng is now his sister too.
  • In Little Women, Jo has always seen her best friend and neighbour Laurie as a brother despite his persistent wooing, and he eventually comes to feel the same way after moving on and falling for her sister, Amy.
  • Mako: Lee and Mac, two stalwart friends from college who lean on each other, exchange music, etc. Lee even protests that Mac is like his sister when Danny starts shipping them. They have a Relationship Upgrade by the end of the book.
  • In Patricia Briggs's Mercy Thompson novels, Mercy's love triangle with Samuel and Adam is resolved when Samuel, a werewolf, is forced to admit that his wolf side sees Mercy this way, not as a potential mate.
  • In Mo Dao Zu Shi, Wei Wuxian is taken in by the Jiang sect as a child. While he's never officially adopted (a tricky subject in ancient China), he's considered part of the main family by most of its members and raised together with Jiang Yanli and Jiang Cheng. When he defends Yanli from her fiancé's insults, her fiancé remarks that if he loves Yanli so much, he should be the one to marry her instead. Despite this, the love between Wei Wuxian and the Jiang siblings remains entirely familial.
  • Lampshaded in the Molly Moon series, when describing the relationship between Molly and Rocky. Understandable, since they have been best friends from babyhood.
  • The Mortal Instruments:
  • The Queen of Eddis has this type of relationship with her cousin, Eugenides. They find it funny when others imagine them in love.
  • In Rachel Griffin, Rachel and Siegfried Smith have this relationship. She's a cultured, well-educated member of the English nobility. He's a gamy, street-smart orphan who slew a dragon. They get into trouble together.
  • Horace and Alyss and Will and Evanlyn from Ranger's Apprentice. Evanlyn actually lampshades this at one point, telling an overly jealous Alyss that she feels about Will the exact same way that Alyss feels about Horace.
  • The Raven Cycle has a "like brothers" example in The Dream Thieves with Richard Gansey and Ronan Lynch. Local Bad Boy Kavinsky makes comments throughout the book about Ronan being in love with Gansey and/or sleeping with him. When he confronts him towards the end of the book, Ronan claims that it's not like that and that he sees Gansey as a brother, criticizing Kavinsky for not being able to see more to relationships than sex.
  • Matteo and Eliza in Someone Else's War.
  • In Clive Barker's Sacrament, Cornelius and Adrianna are described as being as close, nine days out of 10, as brother and sister. And on the 10th day, they fight like brother and sister.
  • In A Song of Ice and Fire, Tommen and Margaery are married. Tommen is too young (8) and innocent to really grasp what marriage is about, but they are technically married and he sees her more as an awesome sister.
  • Oathbringer (third book of The Stormlight Archive):
    • Implied to be Kaladin's final feelings for Shallan, because she reminds him of his brother Tien. He sees Sylphrena, his Bond Creature, as a sister in an Annoying Younger Sibling sort of way.
    • Adolin ends up in a similar relationship with Veil, considering her a drinking buddy. And yes, he knows she's Shallan's Split Personality. Dating a Lightweaver is weird.
  • Princess Andromeda does this deliberately in Mercedes Lackey's Tales of the Five Hundred Kingdoms. She and her rescuer swear blood-siblinghood to prevent the story from forcing her to fall in love with him. It turns out it wasn't as necessary as it seemed, as they actually ended up swearing sisterhood.
  • In Thr3e, Kevin and Sam are this. It's stated that they are best childhood friends and would never, ever jeopardize this. It becomes fairly obvious why there can be no sexual attraction when you find out that Sam is actually one of Kevin's multiple personalities.
  • In Warrior Cats, things become awkward when Bristlefrost confesses her feelings to Stemleaf, and it turns out that he views their relationship this way (he even describes her as being like a littermate to him); he has feelings for Spotfur instead.
  • Egwene uses this line in The Wheel of Time to make it perfectly clear to Rand that he has no attachments. (He agreed, though she thought, incorrectly, that he was mostly putting up a brave face at the time.) It's followed by her best friend Elayne getting into a relationship with Rand that is most definitely not this trope. Perrin also says it in an attempt to let Min down easy, before realizing that he needn't because it's not him she's after.
  • The Dragonets from Wings of Fire. They've been raised together since birth, and think of each other as surrogate siblings. The only exception is Starflight's crush on Sunny, but she turns him down specifically because their relationship is too familial.
  • In Zeroes, Bellwether and Flicker have this type of relationship. During his Breaking Speech that tore apart the Zeroes, Scam accused Bellwether of both thinking of Flicker as a younger sister and at the same time being romantically attracted to her; the chapters from Bellwether's perspective confirm this.

    Live-Action TV 
  • On Angel:
    • Cordelia and Wesley bicker and taunt each other mercilessly, but they are good friends, and are always there to defend each other in times of danger. If it wasn't for the accent difference, they could almost be brother and sister.
    • Cordelia and Angel were also like this for the first two seasons of Angel, which led to some viewers being displeased when their relationship changed to a romantic one from partway through the third.
  • Babylon 5: Captain John Sheridan and his Number Two, Susan Ivanova, are best friends, confidantes, and comrades-in-arms, and have walked through fire together. There's also not a hint of romantic interest in each other on either side. This is played for pure hilarity when Sheridan has a midnight brainstorm and comes barging into Ivanova's quarters babbling about his brilliant plan, only for Ivanova, who's wearing some fairly skimpy nightclothes, to point out that she might want to go change first. Whereupon:
    Sheridan: Oh, uh, right. Sorry, I hadn't noticed.
    Ivanova: Thanks, I'll just... wait. What do you mean you didn't notice?? What am I, chopped flarn? I mean, okay, granted, I don't have any interest in you, and you don't have any interest in me, but if you're going to come barging in here in the middle of the night, the least you could do is say, 'Nice outfit, Ivanova!' and then go on a tear!
    Sheridan: [utterly flummoxed] Uh... nice outfit, Ivanova!
    Ivanova: [stalks away, muttering] You are such a... [indecipherable grumbling]
  • Sheldon and Penny in The Big Bang Theory. In the episode "The Intimacy Acceleration", they conduct an experiment designed to make people fall in love by asking each other a few personal questions. They don't fall in love, but reflect more about their friendship, and they both admit that they look on each other like a brother and a sister. At her wedding with Leonard, he makes a point of telling her that she's extremely important to him.
  • Brooklyn Nine-Nine:
    • In "Tactical Village", Peralta claims that Amy Santiago is like a sister to him. Boyle isn't convinced, and Peralta later admits he does have feelings for her.
      Boyle: That's what Luke said about Leia.
      Peralta: Hey, Luke didn't know! No one knew!
    • However, Jake Peralta and Gina Linetti are actually this. She refers to Jake's grandmother as "Nana".
  • Buffy the Vampire Slayer:
    • Buffy and Xander after Season Two. For the first two seasons it's a bit one-sided (Xander's in love with Buffy during this time).
    • Xander and Willow also end up like this. They start off more like Platonic Life-Partners, but as the series progresses they drift apart a bit, and form close relationships with other people. They remain part of the same group of True Companions.
    • Spike and Dawn had a relationship like this once Dawn got over her Precocious Crush, with Spike developing a fierce protectiveness over the youngest Scooby. Their relationship became strained in season 7, but picked up again in the comics.
  • In Clarissa Explains It All, Clarissa and Sam's relationship is like this. They are very close, to the point that Clarissa just lets him enter her room unannounced through the window using a ladder. They share their feelings and trust each other blindly. They go on a date once, because Sam briefly develops a crush on Clarissa and they decide to try it, but the date turns out to be really awkward and the unpleasant kiss they share is best described by Sam as like kissing his sister if he had one.
  • Most celebrity/pro dancer couples on Dancing with the Stars have been known to become something like this, with season 21's Bindi Irwin particularly referring to her partner Derek Hough as "the best big brother" (he is thirteen years older than her). Hough reciprocated, as he took a liking to her boyfriend Chandler Powell, whom he has kept an eye on and told him to treat Irwin nicely.
  • Doctor Who:
    • Donna and the Doctor, although they were often mistaken as a couple. She was one of the first companions in the revival not to view the Doctor as a romantic interest, and these two characters had a very close platonic friendship.
    • "The Vampires of Venice" subverts it: Rory is not happy about having to pose as Amy's brother for a ploy, since he's her fiancé, thank you very much.
  • Tom Branson and Mary Crawley (who are in fact siblings-in-law) eventually reach this relationship in season six of Downton Abbey—so much so that they drop the "in-law" part of the equation and simply refer to each other as "my brother" and "my sister".
  • The Expanse: Parodied when Jim and Naomi disclose their romantic relationship to the other two members of their crew. Jim was especially worried that Amos, who blindly follows Naomi's every word, might take issue. However, Amos assures him that Naomi is like a sister to him before immediately noting that he'd still have sex with her given the opportunity. Jim just has this brilliant "wtf?" expression on his face.
  • Firefly:
    • Mal and Zoe. They appear to have been Platonic Life-Partners until Zoe married Wash, but since Zoe unflinchingly chooses Wash over Mal in War Stories, it's safe to assume that, much like Xander and Willow above, Mal and Zoe's relationship has been demoted. After Wash dies in Serenity, it's quite possible that Zoe and Mal's relationship will return to Platonic Life-Partners status. Though that might have been less Zoe choosing Wash over Mal and more her unflinchingly making a logical decision for the sake of the whole crew: she knew Mal was a lot tougher than Wash and that she could take over his duties if need be, whereas they only had one pilot.
    • Also, Mal and Kaylee, and their actors in real life. Leading to this exchange in the Big Damn Movie (though it's somewhat jarring, as both of them have seen each other naked):
      Kaylee: Goin' on a year now, I ain't had nothin' twixt my nethers weren't run on batteries!
      Jayne: I could stand to hear a little more.
  • Frasier: Frasier Crane and Roz Doyle.
    Roz: You've always been just like a brother to me. Which is weird, I know, because we slept together...
  • Friends:
    • Joey and Monica in later seasons. This is mainly because Monica gets together with Chandler, who Joey considers his "brother" and the trio form a mini-family within the True Companions. Monica feeds Joey for years, they include a "Joey Room" in their new house, and frequently act as his older siblings.
    • To a much lesser degree, Rachel/Chandler and Phoebe/Chandler, though they may be too much of The Friends Who Never Hang to count, though Chandler did walk Phoebe down the aisle at her wedding when she had no other father figures to do it.
    • Phoebe and Joey are a mix of a sibling-like dynamic and Platonic Life-Partners. They are clearly secure enough in their friendship for her to practice kissing him when he's auditioning for a role.
  • The bitterness is almost palpable on Game of Thrones when Catelyn states to Ned that Littlefinger is like a brother to her. Ouch!
  • Kurt Hummel and Mercedes Jones in Glee. Although the interest in them being a couple is completely gone by episode 3 when Kurt comes out of the Transparent Closet... they stayed the closest (platonic) friendship in the show for quite a while.
  • Grey's Anatomy: For a while this is what Alex and Jo both invoke to describe their feelings towards each other. Yeah, right. As soon as Jason enters the picture, Alex has a Green-Eyed Epiphany, and the burgeoning Unresolved Sexual Tension develops quickly into a full-blown Relationship Upgrade. On the other hand, Alex really does have this kind of relationship with Meredith, especially once they're the only two left of the original five interns.
  • Hercules: The Legendary Journeys: After a brief Ship Tease, Hercules and Xena decide they're Better as Friends and become this.
  • How I Met Your Mother:
    • Ted and Lily. Notable in that, since Lily's been Marshall's girlfriend since the day he and Ted became roommates, and Ted and Marshall have been Heterosexual Life-Partners for almost as long, Ted and Lily have been basically brother- and sister-in-law since college. Highlighted when Lily broke up with Marshall and moved away for a time. After their reconciliation, Ted harbored resentment towards Lily for leaving him as well and then assuming her reconciliation with Marshall automatically applied to Ted.
    • Marshall and Robin, in contrast to her Better as Friends with Ted and Will They or Won't They? with Barney.
    • Though inappropriate at times with her just to mess with her, Barney and Lily’s relationship is also strictly platonic.
    • From what is seen, Tracy the Mother also developed this relationship with Marshall and Barney.
  • In the Hallmark version of Jason and the Argonauts, Atalanta prepares to confess her love to Jason and is overjoyed when he replies that he loves her too... but has a decidedly different reaction when Jason goes on to say that they are this trope (he actually says "you've always been as dear to me as a brother", ouch).
  • In the final season of Law & Order: Criminal Intent, Bobby Goren is seeing a psychologist as a requirement for keeping his job. She inquires into his relationship with his adored partner, Alexandra Eames, and at one point straight-up asks Goren if he's in love with Eames. Goren, flustered, insists that he does love her but that she's like his big sister; it's left ambiguous as to whether he's telling the truth.
  • In Law & Order: Special Victims Unit, this is the dynamic that eventually develops between Amanda Rollins and Dominick "Sonny" Carisi (once she stops just being plain annoyed with him). It's a little more complicated on his end, though, since it slowly becomes clear that he has feelings for her (whether this was the case all along or whether it started off as a fully straight example of this trope and the rest developed later is open to interpretation).
  • On Leverage this plays out between Eliot and Parker with Eliot playing the role of a protective big brother. They even manage to have interesting conversations while on the job:
    Parker: What's sexting?
    Eliot: I am not having this conversation with you, Parker.
  • Two contestants in MasterChef Australia's fourth season, Ben and Emma, have this relationship. Emma regards Ben as her brother and mentor, and broke down when she realized she would have to face him in an elimination challenge. Ben, for his part, was willing to drop out from the competition and let go of his dreams so that Emma could stay.
  • Merlin:
    • Guinevere and Merlin become this. They probably have the healthiest relationship on the show, and both were prepared to die for the other within the first four episodes of the show.
    • Arthur and Morgana sort of have this, but it's debatable and their relationship evolves over the series. Considering that Morgana is Arthur's father's ward, she's essentially his foster sister. Actually, she's his half-sister, so a literal application of this trope. Luckily Mordred already exists in season one and is probably about half Arthur's age at that time, so there will be no need for either Morgana or Morgause to seduce Arthur and bear his child for the sake of the plot.
  • The Middle:
    • Sue Heck's first boyfriend was Brad Bottig, who it seemed everyone but her could tell was gay, but romance was never really the nature of their relationship. There was likely a point that her inability to recognize this eventually turned to Selective Obliviousness until the point he was willing to open up about it. He was constantly an ear for her to share any and all guy troubles she had and their friendship continued throughout college as well. It came to the point that he was a way better friend to her than her actual best friend Carly (who pretty much disappeared after Season 6 sans a one-off cameo in a Season 9 episode).
    • People mistakenly thought this was the nature of Sue’s relationship with brother Axl’s best friend Sean Donahue too, but they both have clearly harbored romantic feelings for each other for a long time. The two have both been too uncertain to act on them. That itself has led into an overly long and exhausting storyline about it.
  • A Million Little Things: Gary Mendez and Delilah Dixon clearly have a very close personal relationship that is not of a romantic nature.
  • On NCIS, Ziva tells Ray that Tony and she are like brother and sister. He's visibly stunned (put them together for five minutes and it's kind of obvious this isn't true).
  • Jess and Schmidt from New Girl. The prospect of them hooking up has become an object of shame and disgust to them and everyone who knows them. Also, Winston and Cece eventually develop into this, with their "classic Winston and Cece mess-arounds" and Winston agreeing to be one of Cece's bridesmaids at her wedding to Schmidt.
  • No Tomorrow: Hank and his internet girlfriend turn out to be this way in person. They decide to be friends instead.
  • Once Upon a Time: Red and Charming, particularly during season two, where she's his Lancer and Consigliere. It probably helps that she's his wife's best friend.
  • Luke and Rani on The Sarah Jane Adventures are, of course, very close friends, but there's not a hint of attraction from either side between them. Also, Luke is still pining after Maria and Rani has rather intense Unresolved Sexual Tension with Clyde. Which, unfortunately, ends up being literally unresolved after Liz Sladen died and the show was shelved.
  • Schitt's Creek: Stevie and David. They had a brief romance and have become best friends, and she plays matchmaker with him and Patrick. She also becomes close to the rest of David's family, including his father, who sometimes includes her when referring to his kids. Patrick even goes so far as to ask her blessing when he's going to propose to David.
  • Elaine and Jerry from Seinfeld. They tried dating, but it didn't work out. The show teases them once or twice, but they're mostly just best friends.
  • Invoked and averted in episode of Selfie, with the UST-laden relationship of Eliza and Henry. Eliza asks Henry to go out to get a drink (planning on setting him up with someone else) and coworker Larry says she wants Henry. Henry says they're like brother and sister, then he realizes that isn't true and says they're "like cousins." While Eliza and Henry have a close, supportive friendship like brothers and sisters, they also have sexual chemistry, unlike brothers and sisters (most of them).
  • Sherlock: Sherlock and Mary end up as this, since her relationship with John is very important to her, and she doesn't want to lose him, and helps Sherlock and John with their relationship since she knows that Sherlock's important to John and that John's important to Sherlock.
  • Chloe and Clark in Smallville, from around Season 5. Chloe used to harbor a childhood crush on Clark, but she grows out of it as she gets older.
  • C.J. and Toby on The West Wing are this, rather blatantly, since they're in a group of True Companions that is closely modeled on a nuclear family. How they actually got to be friends (years before the show started) is frustratingly never mentioned, just like Josh and Sam, or Jed and Leo.
  • Conversed for laughs in Wizards of Waverly Place to clean up the residue from Jalex Ship Tease inserted into the scene. Alex and Justin have popped themselves into a movie. Their parents overhear a conversation about the two new characters:
    "... they have such chemistry."
    [Laugh Track]
    "It's like they grew up together."

  • Subverted by French singer Jean-Jacques Goldman in Elle a fait un bébé toute seule: "I'm like her big brother... a little incestuous when she wants to."

    Pro Wrestling 

  • Clopin and Esmeralda in Notre-Dame de Paris. Clopin even calls her "my little sister".
  • In the Mrs. Hawking play series: This is Mary and Nathaniel's relationship. While they're extremely close and have a genuine love for each other, it's not romantic in the slightest; Nathaniel is Happily Married to Clara, and Mary has a sweetheart in Arthur Swann. It's part of the play's many subversions of tropes — in the late nineteenth century, the idea of close, platonic male/female relationships was unheard of.

    Video Games 
  • Final Fantasy:
    • Zidane and Freya from Final Fantasy IX. She's the only female he doesn't actively flirt with (the fact that she already has a one true love helps) and they have a mutual respect and camaraderie from the beginning.
    • Final Fantasy X:
      • Tidus and Rikku. Rikku is the first person Tidus is able to talk to in Spira and they form a really close bond over the course of their journey. Yuna and Wakka also as they grew up together on Besaid. She actually says that she and Wakka (as well as Lulu) are brother and sister. Wakka also says at one point that Yuna is a like a little sister to him and Lulu, and their interactions back that up.
      • Tidus and Lulu in a way become this as well. Lulu is initially cynical towards Tidus when he joins the group but she is always the one who tells him about Spira and she has definitely warmed to him by the time they get to Guadosalam.
    • Vaan and Penelo appear to be this initially in Final Fantasy XII, but the end of the game implies that they might be more.
    • Serah and Noel in Final Fantasy XIII-2 form a brother-and-sister like relationship through the course of the game due to both having their own love interests already (Noel being in love with Yuel and Serah being Snow's fiancé).
  • In Kingdom Hearts Sora seems to have a special bond with Ariel. They are certainly much closer than Sora is with the other Disney characters who appear in various worlds. Especially in the first game, Ariel's desire to see other worlds is paralleled with Sora's same desire from the beginning. There would be good justification for a romantic pairing, except Ariel is canonically paired with Eric in the second game (just like the movie) while Sora has overt feelings for Kairi, with the two becoming an Official Couple in the third game.
  • Shin Megami Tensei: Persona:
    • Junpei and Yukari's relationship in Persona 3 is basically this, along with a healthy dose of Vitriolic Best Buds. They tease each other mercilesly, but also respect and care about each other a lot, with no sign of romantic interest.
      • In the PSP re-release, unless you have him be your lover, Akihiko can form this kind of bond with the female protagonist, courtesy of his new Social Link. It's even more sibling-like insofar as late in the link, he'll admit that he sees his deceased younger sister Miki in the protagonist. The female protagonist and Junpei also fall into this, especially seeing as Junpei can't be romanced: their relationship in their Social Link is entirely platonic with Junpei taking on a protective brother role towards her; Junpei's canon romance with Chidori conflicts with a possible romance.
    • Much like the above Persona 3 example, Persona 5 has Futaba and the main protagonist, Joker. Due to sharing a parental figure in Sojiro, both of them spend a great amount of time around Leblanc with each other playing video games, reading manga and eating curry, eventually culminating in this trope being solidified if Joker chooses to remain platonic instead of pursuing a Relationship Upgrade. Fan works that heavily support this pairing often use this as a way to keep Joker and Futaba close to each other while having both of them pursue other romantic relationships. One of the new optional scenes in Royal even lets Joker introduce her to another character by saying "she's basically my sister."
  • Falco Lombardi and Katt Monroe from Star Fox. They're not related, but they've known each other for most of their lives. Their once-ambiguously-portrayed relationship turned out to be this once it became clear in Farewell, Beloved Falco that Falco isn't into girls (or at the very least isn't looking for a girlfriend), but they have a sibling-like loyalty to each other.
  • Castlevania:
    • At the beginning of Castlevania: Portrait of Ruin, Jonathan Morris states that his childhood friend Charlotte Aulin is like his dear sister, much to her displeasure since she doesn't like to be treated like a child.
    • In Castlevania: Order of Ecclesia, Albus views himself as Shanoa's big brother, complete with Knight Templar Big Brother tendencies. Whether or not Shanoa feels the same is uncertain since we don't see much of her prior to her memory loss.
  • Though it's never outright stated, Yuri and Estelle in Tales of Vesperia fall into this. Despite numerous Shipper on Deck moments from other companions in various skits, they never stray from being like brother and sister.
    • The same case can also apply with the main hero and heroine of Tales of Graces. Despite the traditional romantic feelings harboring between the Tales of... heroes, this time, the main character's love interest isn't the main heroine (who unfortunately is hit hard by some fans), so despite the numerous Ship Tease moments, nothing romantic ever occurs between the two of them. It doesn't help that the main heroine isn't even human. In the Lineage to the Future arc, Asbel explicitly refers to Sophie like a sister (although in a skit, she refers to him like a father-figure as well—It Makes Sense in Context).
      • Eventually, Asbel adopts Sophie into his family - not as his sister, but as his daughter.
      • Graces also seems to be invoking this trope with one of its win quotes. Asbel refers to himself, his brother, and Cheria—who clearly harbours romantic interests for him—as "Lhant's Triplets of Terror." Cheria angrily retorts, "I am not your sister, Asbel!"
  • In the Sonic the Hedgehog series, Tails and Amy act like this. Amy's Stalker with a Crush status can make things a bit tense, however.
    • Shadow and Maria also had this relationship.
    • On the official Japanese website for Sonic the Hedgehog (2006), Blaze and Silver's relationship was stated to be like this.
  • Lucca insists that her relationship with Crono is like this in Chrono Trigger. Whether or not that's entirely true is a matter of some speculation.
  • If Wrex survives Virmire and you turn down the Salarian Dalatrass's request to fake the genophage cure, his relationship with Shepard in Mass Effect 3 is this. He even calls Shepard brother/sister at the end of "Priority: Tuchanka." He goes out of his way to not call his biological half-brother as such, because Wreav's an asshole.
  • In The Elder Scrolls V: Skyrim, the Dragonborn can join the Companions, a warrior guild stationed in Whiterun which effectively takes the place of the Tamrielic Fighters' Guild from the previous games. All of the members of the Companions refer to one another as "Shield-Brother" and "Shield-Sister," and most if not all of them consider the guild to be their true family.
    • The Skyrim chapter of the Dark Brotherhood also consider themselves a family, and could describe most of their relationships with each other in this way. They don't voice it as explicitly as the Companions, but it's there.
    • In the Dawnguard expansion, a male Dragonborn can develop this sort of bond with Serana, since she's not available (outside of mods) as a romance option.
    • This may also be a description of the relationship between a female Dragonborn and Paarthurnax. On a metaphysical level, they actually are brother and sister, both having been created by Akatosh, the god of time; depending on how the Dragonborn chooses to view Paarthurnax's mentorship, it could certainly fall into this trope.
  • In Sands of Destruction, Agan and Morte are Childhood Friends. Kyrie seemed a bit down at first that his pretty Love Interest has such a close male friend, but it soon becomes obvious that while Agan frets over Morte and she will kill anyone who hurts him, their relationship is that of siblings. It isn't stated exactly where Morte's parents are or what happened to them, but when visiting the Bacchitav Caravan, they're not there and she's clearly on good terms with Agan's mom, perhaps implying that they were actually raised as siblings.
  • In the Dragon Age games, the player character can develop this sort of dynamic with any companion of the opposite sex that they don't actively romance.
    • One of the most pronounced examples is in Dragon Age: Inquisition; should a female Inquisitor max out the approval rating of the Tevinter mage Dorian, their dialogue clearly indicates a mutual platonic adoration.
    • Also in Inquisition, there are shades of this trope in the relationship between Cullen and Cassandra. It's made very clear that they like, respect, and trust one another in a non-romantic way; furthermore, listening in on ambient dialogue with the runners who deliver messages around Skyhold shows that she has a tendency to watch him closely. She's monitoring him for signs that his lyrium withdrawal is getting to him, but they both express this fact in ways that make her sound more like a big sister than anything. He has a similar relationship with Josephine and Leliana, though to a lesser extent; they tease him about his hair and his romance with a female Inquisitor, and have a number of other kindly sibling-like interactions with him.
  • In the Baldur's Gate series, a male player character can have this relationship with his childhood friend Imoen, who is the most loyal of all the potential companions. No matter what, she will stick with the PC because of her friendship for him. In an unmodded game, there is never any hint of attraction between them (and some expanded banters will have her be Squicked by the thought). In fact, Baldur's Gate II reveals that a male PC and Imoen aren't just like brother and sister, they actually are (though she had a different mother). This has not stopped modders and shippers from pairing them up, especially since their Divine Parentage makes it highly unlikely they're biologically related.
  • Shantae has this relationship with her old friend Bolo. For better or for worse, this means she's more or less off of Bolo's radar.
  • Life Is Strange: Victoria Chase and Nathan Prescott have a close platonic relationship, and Victoria is probably the only person in the world who genuinely cares about what he's going through. Unfortunately, she has little ability to actually help him, between his father refusing to allow him the therapy he needs and Mark Jefferson manipulating him by pretending to act as his father figure. She can tell that he's getting worse over the course of the game, but doesn't know what to do. If Max tries to talk to her about how dangerous Nathan is getting, she'll eventually decide that Nathan needs to be brought in for his own good.
  • In Overwatch's first short story, "Bastet", the narration mentions that Ana Amari, Jack Morrison and Gabriel Reyes were like siblings to each other during Overwatch's golden years. In the present, Jack and Ana are still close friends, but Gabriel had undergone a Face–Heel Turn (becoming Reaper) and is now their enemy. Also Jack was later confirmed to be gay, killing any possible history between him and Ana.
  • Dragon Quest XI: Due to the fact that his mother had acted as a Parental Substitute for her when she was young, Jade explicitly views the Luminary as her little brother. That said, the player is given the option to marry her in the Switch version of the game.

    Visual Novels 
  • Ace Attorney:
    • Phoenix Wright and Maya Fey consider themselves a little family, with Maya calling herself Phoenix's sister, and their dynamic is characterized by them constantly ribbing on each other but absolutely always having each other's backs and willing to go to any lengths to protect and help each other.
    • Miles Edgeworth and Franziska von Karma were raised together since he was 9 and she was 2 and consider themselves siblings. She makes it a point to call him her "little" brother and it's really not wise to correct her on that.
    • Apollo and Trucy seem to fit into this trope perfectly until it's revealed that they, unbeknownst to them, actually are half-siblings.
  • Corpse Party has Mayu Suzumoto and Sakutarou Morishige. Sakutarou does not take it well when he finds out that the mutilated corpse he's been obsessing over is Mayu's.
  • In Little Busters!, if you don't get together with the main heroine Rin, she and Riki stay friends like this.
  • In Umineko: When They Cry, Shannon and Kanon's relationship is like this. It's eventually made clear that they're actually the same person, created as alter egos of Sayo Yasuda; Sayo even created Kanon to be a "little brother" for Shannon.
  • Carlos and Akane in Zero Time Dilemma develop this bond over the course of the story (At least in the timelines when she's not murdering him for killing Junpei). Ther friendship is purely platonic given that Akane only has eyes on Junpei, and Carlos not only ships them, but is not interested in romance whatsoever. In the True End Carlos actually says that he feels like he gained a new sister.
    • Sigma and Phi are another example. They have trusted each other nearly since the first time they met, he's a lot more outspoken when in her presence, and saving her is her first thought when they're about to be executed. Zero Time Dilemma subverts the trope by revealing that they are actually father and daughter.
  • Ikemen Sengoku: Hideyoshi, the Team Mom of the Oda forces, becomes a protective older brother-like figure to the female main character after he gets past his initial suspicions of her. In most routes, their relationship is genuinely platonic, but in his route their growing romantic feelings for each other make it increasingly impossible for them to keep treating each other as only "family".

  • Bittersweet Candy Bowl is Mike and Lucy when they are younger, though they later develop romantic interest in one another. Paulo claims to feel this way about Daisy, and Daisy seems to feel this way about Paulo, but there are some hints that Paulo, at least, is somewhat interested in his friend. Mike also sees Daisy this way, much to her frustration.
  • Lavender Tea: Nina shows a sisterly affection to Jasper. Later this frustrates Jassie as he feels he's not respected as a guy but a child.
  • Something*Positive:
    • Davan and Aubrey are like this, especially since they've known each other long enough for the Westermarck Effect to be in place.
    • Davan and Pee-Jee are an almost as good an example, although they haven't known each other nearly as long and Davan had a crush on her prior to the comic's beginning. Davan even refers to her as Mei-Mei (Chinese for "little sister") at one point.
  • El Goonish Shive: When Elliot tried to assess why his recent feelings toward another girl are different from his feelings towards his girlfriend, Sarah, he suddenly realized that he sees her more like a sister than as a girlfriend, but had been oblivious to it all that time.note  While his girlfriend didn't feel the same way about him, she ultimately wasn't too disappointed as she had her own reasons for wanting to break up with him.
  • Dumbing of Age:
    • Billie and Walky. They've known each other since childhood (though Billie avoided him in high school), bicker near-constantly, and Billie seems to view Walky as her Annoying Younger Sibling. They tend to act angry or nauseated when someone suggests they could be a couple.
    • Even Walky's actual sister Sal acknowledges this, telling Billie she's the "daughter [our parents] like" and smiling when Walky tells her he wants to be a good brother—to Billie—as a backhanded way of acknowledging he hasn't always been a good brother to Sal.
  • The Friendly Winter: Da-Jeong and Min-Seong are like this. The manga has implications of their parents pairing up so they could literally end up siblings one day.
  • Elsanna – Bram Stoker's Dracula: Anna and Kristoff are this, despite their canonical relationship in Frozen (2013) and Mina Murray being Jonathan Harker's wife-to-be in the 1992 film.
  • TwoKinds: Kat has a crush on her master Eric, but Eric reveals that he thinks of Kat as his little sister. This causes issues, so Kat takes an interest in Natani instead.
  • Girl Genius: Bang and Gil are this, especially post-Time Skip. Gil doesn't seem at all surprised to wake up sharing a bed with Bang and she is extremly protective of him, but they both have other canon Love Interests.
  • Ozy and Millie had this so much that in the final arc their parents get married.
  • Joseph & Yusra have been best friends ever since Yusra came to America as a toddler and they discovered they had a telepathic link. Yusra has no problem taking off her Hijab at his house and openly admits that she can't see him as anything other than an older brother. Ironically, she says this right before running into her actual brother.
  • Sluggy Freelance: In "Brain Games", Torg claims this trope about himself and Gwynn... but it's clear it doesn't really apply, even if the fact that it doesn't seems to confuse him. (Really it's leading up to the conclusion that they're like family in a different sense.)
    "That girl has a lot going for her, I mean besides being gorgeous! I mean I think of her as a sister, not that I'd find a sister hot. That's sick! And I'm healthy! And a healthy guy finds Gwynn hot!"

    Web Videos 
  • Midnight Screenings: Brad Jones and Sarah Gobble have appeared together in the reviews probably more than any other male-female duo (or just any duo in general). They’ve never had a romantic relationship with each other as they’ve each had romantic relationships that have come and gone and now Brad is married to Laura while Sarah is married to Dave with a daughter. Brad and Sarah are still clearly very close though.
  • The Nostalgia Chick and The Nostalgia Critic, as well as their real-life counterparts (Doug Walker and Lindsay Ellis), have been described as such. Given the 2018 #ChangeTheChannel movement, though, that is probably no longer the case.
  • Out With Dad: Rose and Kenny. They're quite close, though only as friends, reinforced as Rose realizes that she's a lesbian.
  • Lulu and Lala from Cream Heroes grew up together, love to eat and have a record of stealing treats as a team. They are also some of the more energetic cats among the bunch.

    Western Animation 
  • As seen in the page quote, Flash and Hawkgirl in Justice League. Any flirting between these two can be entirely attributed to Flash's tendency to hit on anything in a skirt (Hawkgirl never wears those, though...), and even that stops by the shift to Unlimited. He even describes her as being like his "big sister" in the final season of the series.
  • Wallabee Beatles and Abigail Lincoln, AKA Numbuhs Four and Five, from Codename: Kids Next Door, with Five taking the big sister role and Four being the little brother (both are the same age, but of the two, Five is slightly older). Ironic, considering they're the youngest sister and oldest brother of their respective families
  • From the DC Animated Universe, this is how Clark Kent seems to have come to view his ex Lana Lang, though she threatens to go back to Lex Luthor if he ever calls her that.
  • Lance and Ilana from Sym-Bionic Titan pose as siblings in their high school. Genndy Tartakovsky said before there was to be no romance between those two.
  • Terry (Batman) and Maxine in Batman Beyond have this, being really really close. Although many fans think they'd just be better off dating, neither character actually shows any interest in the other that way, aside from a teasing banter here and there. Word of God states that one writer suggested making them a couple, but the creator decided to have them stay purely as friends.
  • Played with in Harvey Birdman, Attorney at Law:
    Birdgirl: You realize there's absolutely no chance we'll be kissing, right?
    Peanut: Yeah, duh, of course; you're like my sister. (pause) Which, given a little thought, could be a very hot concept.
  • The titular character and Ingrid Third in Fillmore! are the Safety Patrol's best officers and the best of friends.
  • Henry and June from KaBlam!, according to Word of God.
  • In the Brandy & Mr. Whiskers theme song, the eponymous duo are described as "like a dysfunctional brother and sister."
  • Gravity Falls,
    • As of the end of the series, Dipper and Wendy fall into this trope. If not for his own relationship with his actual sister, Mabel, Dipper and Wendy could have become Platonic Life-Partners.
    • Mabel describes Gideon as "a little sister I can do girly things with." Unfortunately, he feels differently about the situation.
  • My Little Pony: Friendship Is Magic:
    • Depending on the Writer, Twilight's relationship with Spike slides between this trope, Platonic Life-Partners, and Twilight being a Parental Substitute toward Spike. One constant throughout all these interpretations is that they are utterly inseparable, to the point where the Season 3 premiere establishes Spike's greatest fear as being Twilight not needing him anymore and sending him away.
    • Spike's relationship with most of his friends can be seen like this too. It's clear he really loves the Mane Six and the feelings appear to be mutual. He said he considers them family in "Dragon Quest" and the tie-in book We Like Spike! ends with the narration saying that the Mane Six are Spike's family. In the "Nightmare Rarity" arc, Twilight said that Spike would do anything to help the girls if he could, and there's a scene in the background of the movie where Pinkie Pie is seen protecting Spike as the Sky Pirate Ship is getting attacked by Tempest.
  • Avatar: The Last Airbender:
    • In the episode "The Ember Island Players," the Show Within a Show portrays Aang and Katara as this. Aang, who has had a crush on Katara since the first episode, freaks out and begins to wonder if Katara really thinks of him this way.
    • This same play portrays the characters that actually are this trope, Katara and Zuko, as a couple. (though some fans would prefer this); their immediate reaction is to scoot further away from each other in embarrassment.
  • In The Legend of Korra, despite some vague prodding at the possibility of romance, Asami and Korra both develop this sort of relationship with Bolin.
  • Gaspard and Lisa (from the All-CGI Cartoon based on the illustrated books) are much like brother and sister. They met at school and are almost inseparable, perhaps since their personalities click very well. Although, the nature of the dialogue-heavy drama that unfolds between them (always resolved by the end of an episode, of course) makes them look a whole lot Like an Old Married Couple despite being kids.
  • All the Teen Titans are in this sort of familial friendship, except for Starfire and Robin, but it's most obvious with Beast Boy and Raven.
  • Star Wars: The Clone Wars: Even though they are Master and Padawan, Anakin and Ahsoka have this sort of dynamic. It helps that they're only a few years apart from each other.
  • Likewise, Star Wars Rebels has this between Ezra and Sabine, after some initial awkwardness. The creative team even refers to them as siblings, in keeping with the crew's family dynamic.
  • The relationship between Kaeloo and Stumpy. In fact, one episode even has her call him her "little brother".
  • Jeremie Belpois and Yumi Ishiyama of Code Lyoko have this relationship as do their respective love interests Aelita Stones/Hopper/Schaeffer and Ulrich Stern. Yumi is also technically this trope with teammate Odd Della Robbia.
  • Milo Murphy's Law has title character Milo and his best friend Melissa, who besides being his best friend is also often invited to events that are otherwise for Milo's immediate family only.
  • Carmen Sandiego: Back in her V.I.L.E. days, Carmen had this relationship with older student Graham/Gray, until she saw how he was willing to go lethal during a heist. After her defection, they see each other as enemies, though the remains of their old relationship still linger. Subverted after Gray's mind-wipe, where his feelings towards Carmen take a more romantic direction.
  • Elena of Avalor: Despite Esteban being their cousin, Elena and Isabel view him as this, and it would appear this sentiment is reciprocated. Elena even admits as much while giving him a "Reason You Suck" Speech while sentencing him to exile for his compliance in her parents' murders and Shuriki's regime. What happens next leads to Elena and Esteban's relationship devolving into Cain and Abel.
  • DuckTales (2017): Huey, Dewey, and Louie are initially put off by Webby due to her having No Social Skills, but they quickly come to treat her as a fourth triplet of sorts (though of the three, she's closest to Dewey due to their interests overlapping the most). By the time the second season rolls around, you could easily mistake her for having always been a part of their lives. Of course, the series finale reveals that she actually is related to them. Specifically, she's their first cousin once removed due to being an Opposite-Sex Clone of their great uncle Scrooge.
  • Initially, this is how Shaggy and Velma were envisioned in the earliest Scooby-Doo, Where Are You! episodes. Velma kept a bottle of cough medicine for Shaggy ("What a Night For a Knight") and Shaggy kept an extra pair of glasses for Velma ("Decoy For a Dognapper"). They had also been seen clinging to each other in fright when one of the faux ghosts appear.

    Real Life 
  • The alternative name for this trope, the Westermarck Effect, is after Finnish sociologist Edward Westermarck, who did very thorough research on the incest taboo and found that sibling incest, father-daughter incest, and mother-son incest are extremely rare in monogamous cultures around the world, and that this effect extends also to stepchildren adopted in very early age. The same effect has also been discovered on many animals, especially birds.
    • Westermarck isn't the only one to draw this conclusion; it's been shown the Westermarck effect is quite common in real life among childhood friends. Studies show that children who know each other during their early childhood will rarely develop any romantic interest later in life. It's hypothesized that this is part of an instinctual mechanism designed to minimize the possibility of inbreeding. But do Middle/High schoolers with those two friends who have known each other since preschool care? Noooooo...
  • As of Avengers: Endgame, Chris Evans and Scarlett Johansson have worked together on a total of eight movies (including that movie, the first Avengers, Winter Soldier, Age of Ultron, Civil War and Infinity War) for about 15 years since 2004's The Perfect Score. They haven't dated in real life and the only time they played actual romantic interests for each other was 2007's The Nanny Diaries.
  • Mark Hamill admitted that he had this relationship with Carrie Fisher, although of the more vitriolic kind (" a sister to me, sometimes we don't speak for years, but I would lay down my life for her"). On Twitter he frequently referred to her as his beloved "space sister," and in the 2010s they did silly things like posing for 'Skywalker family photos'. His remarks about their relationship are considerably Harsher in Hindsight, since Fisher's unexpected death in 2016 left Hamill in almost Stunned Silence. His comments on social media have made it clear that he was, and remains, heartbroken by her loss.
  • Leonardo DiCaprio and Kate Winslet, having been very close friends since Titanic and collaborating again in Revolutionary Road, remain this and nothing more. Kate's kids call him "Uncle Leo," and for a kissing scene in Revolutionary Road, Leonardo stated that it felt slightly weird because kissing Kate was like kissing a family member.
  • Harry Potter actors Rupert Grint and Emma Watson said it was weird to kiss each other for the eighth and last movie, because they had grown up together since the first one and regard each other as brother and sister. Same when Emma had to kiss Daniel Radcliffe (though the relevant scene itself was already decidedly unpleasant in context).
  • Arguably the luckiest of King Henry VIII's wives was Anne of Cleves. Misled by flattering portraits on both ends and a need for a political alliance, they married. As soon as it was time to consummate things, the pair found out that there was absolutely zero attraction and Henry opted for an annulment. Anne was sensible enough to sign the annulment papers with all due haste (and probably a sigh of relief); she thus kept in good standing with Henry, who liked her very much as a person even though there was no physical attraction, and became known as "the King's beloved sister." She was invited to all the events at court, was provided with a household and income by the crown, and was very close with both of Henry's daughters, even participating in the procession when Mary I became queen.
  • David Faustino denied that there was ever any romance between him and Christina Applegate on Married... with Children, instead defining their relationship as this trope. Furthermore, it applies doubly for them both in real life, as David doesn't have any sisters and Christina is an only child.
  • Jennette McCurdy has specifically said that kissing Nathan Kress feels like kissing a brother, and it's part of the reason some fans see the relationship of Sam and Freddie in the fifth season of iCarly as being subject to Shipping Bed Death due to the lack romantic chemistry.
  • Joel Courtney and Katherine McNamara have been close friends for years and worked together regularly on movie reviews and interviews.
  • During an interview with Craig Ferguson, Jet Li stated that actress Michelle Yeoh, with whom he has an extensive working history, is "like a brother to me".
  • You could describe the relationship between Johnny Depp and Helena Bonham-Carter like this.
  • Nathaniel Parker, who plays the title character of The Inspector Lynley Mysteries, outright stated that he sees co-star and close friend Sharon Small, who plays Lynley's beloved partner Barbara Havers, as his little sister. This does not, it must be noted, stop him from shipping their two characters like it was going out of style.
  • While Law & Order: Criminal Intent left the actual relationship between Robert Goren and Alexandra Eames somewhat ambiguous as stated above, Vincent D'Onofrio (Goren) has stated that this is the real life relationship he shares with Kathryn Erbe (Eames).
  • NUMB3RS star Dylan Bruno (Colby Granger) has stated that this is how he feels about his co-star Diane Farr (Megan Reeves), owing to the fact that she used to date his brother. Arguably this comes across in their characters' dynamic as well.
  • Bradley McIntosh and Rachel Stevens out of S Club 7 remarked that having to kiss in the movie Seeing Double made them react like this. In the movie Bradley is supposed to be attracted to a clone of Rachel but not the real one, and in interviews he said filming the kiss scene was like kissing his sister.
  • Jack White and Meg White of The White Stripes are actually ex-spouses, but have referred to themselves as siblings. Not like siblings, but as siblings. Let that sink in.
  • Judy Garland and Mickey Rooney starred in nine movies together as teenagers. They remained friends ever after, and Rooney had a serious breakdown when Garland was reported dead.
  • Jennifer Lawrence and Josh Hutcherson starred as the lead couple in four movies of The Hunger Games franchise together, and the chemistry they display in interviews has resulted in massive shipping by fans; even their film director ships them. Despite this, both have said in an interview that they are like brother and sister.
  • Homosexual people very often develop sibling-like relationships with their friends of the opposite sex.
  • There is a midrash about a matron asking a rabbi why God put Adam to sleep before creating Eve. The rabbi said "he tried doing it while Adam was awake, but the process was too disgusting for the man to love her". The matron noted that she can confirm it—she was supposed to marry a relative of hers, but due to the fact they grew up together, she became ugly in his eyes, so he married another girl, one not nearly as pretty.
  • A particularly nasty example of this trope occurred in 16th century France. At the time, marriages among royalty were arranged, and some of the unions were less than joyous. As a result, someone got the bright idea that if the young princes were raised with their respective fiancées from an early age, they would become accustomed to one another and grow up to form stable marriages. Unfortunately, since the couples weren't too closely related by blood or adoption, no one counted on the Westermarck effect described above. Thus, when it came time for the couples to grow up and get married, they saw each other as this trope, and the process of trying to produce heirs squicked them so much that they did so as little as possible, if at all. The nasty part comes in when, due to lack of heirs, the ruling Valois dynasty died out, and the resultant Succession Crisis led to civil war.
  • News anchor Rachel Maddow, of MSNBC, and Richard Engel, Chief Foreign Correspondent for NBC News, have this sort of bond. Richard is a frequent guest on her show, and while he's not the only friend of Rachel's for whom this is true, something particularly magical happens whenever he comes to call. Rachel always speaks incredibly well of him, and the warmth between them whenever they're together — in person or by video link — is practically palpable. Their visible, unrestrained joy in each other's presence is beautiful to behold.
  • It's well understood that voice actress Yukana often displays her Big Sister Instinct to the popular voice actor Tomokazu Sugita. According to a radio show in 2010, she helped him when his original talent agency dissolved in the early 2000s, and she still helps him through hard times. In fact, Sugita even mentions that the two people who scolded him for not eating enough meat were Yukana and his mom.
  • Canadian ice dancing duo Tessa Virtue and Scott Moir, in spite of showing a chemistry that gave them two Olympic golds and has been described as downright steamy, have declared themselves to be this, with their only attempt at romance happening when they were just kids. The shipping had gotten to the point that when Scott announced he was engaged to another skater, thousands were heartbroken and unjustly targeted his fiancée.
  • According to Charmian Carr's autobiography, Forever Liesl, this was/is the relationship between all seven of the actors who portrayed the von Trapp children in The Sound of Music. In the book, she describes how the film siblings would have regular get-togethers and were well acquainted with each other's real life families. Carr passed away in 2016, and Heather Menzies (Louisa) followed her in 2017, but the remaining five continue to be part of each other's lives in the same manner.

Alternative Title(s): Storge


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