Alice has never really been in love with anyone else but Bob. She can only be attracted to/aroused by him, not even other men, or, for that matter, women. Not even porn can do it for Alice, unless Bob is in the porn. If Bob turns into a girl, Alice will still be hot for her. If Bob is technicallymore than one person, Alice will love all of them, to the exclusion of everyone else that does not inhabit Bob's body. The only way you can describe Alice's sexuality is "Bob-sexual".
Sometimes a serious character type, sometimes a joke said by Charlie to describe Alice's infatuation with Bob. Sometimes it gets to the point where Alice becomes a Stalker with a Crush or something similar.
May be Fan Speak. See also If It's You, It's Okay for when the target is outside of the character's usual sexual preferences; in both cases it's often a way to give a character who isn't normally seen as having 'sexuality' a romantic interest. Most shippers tend to believe their OTP is affected by this.
Disinterest in attractive people of an appropriate gender, other than one's love interest, is commonly shown as an indication of being deeply in love; whether this is Truth in Television varies between couples.
Not to be confused with Single Object Sexuality or Object Sexuality in general.
open/close all folders
Anime & Manga
Zetsuen no Tempest Entire plot revolves around Yoshino and Mahiro trying to save the world so they can learn who killed Aika - Yoshino's girlfriend (whose picture he still kept in his cellphone and chose to remain her boyfriend even after the fact) and Mahiro's step-sister (Who he was ready to avenge even if it meant the world ending and pulling a Face-Heel Turn)
The manga Ai Kora appears to be this series main plot, as the main character Hachibei Maeda only finds attraction in women who have his "Ideal Parts". He shows no interest in women who do not have these parts.
Edward Elric from Fullmetal Alchemist never shows the slightest interest in any girl but his mechanic, Winry, the girl he eventually marries. May be a genetic trait, as there's no evidence that his father, Hohenheim, ever loved anyone but Trisha despite living for 400 years.
Manabu Tanaka and Reina Ryuuzaki from Yandere Kanojo are a Single Target Couple beyond question.
Chi-Chi is Goku-sexual in Dragon Ball when they first met. When they meet again 5 years later in the World Tournament (despite him not remembering that she is Chi-Chi), and married. Despite Goku being dead for 7 years, she never remarried, and they fully reunite after Goku once again comes Back from the Dead after the aftermath of the Kid Buu arc.
Goku, likewise, appears to be Chi-Chi-sexual as he never shows interest in any other woman ever. Granted he has little tolerance for anything beyond food, fighting, and training in the first place, but the fact that Chi-Chi can even break his concentration from those things in the first place is a testament to how much he loves her.
Boa Hancock from One Piece despises all men and is indifferent to most women; however, when it comes to Luffy, she has made it explicitly clear that no matter what the circumstances, even if he was the son of demons, she'd still love him.
Kaede's life revolves around Rin in SHUFFLE!, largely as a result of the desire to atone for her mistreatment of him when she blamed him for causing her mother to come home early and die in an accident (when, in fact, her father had called her mother when she had fallen ill), though the ending of the anime implies that she hooks up with Sia.
Kämpfer's Natsuru Senou. Oh Natsuru, you practically drive the plot with the fact that despite having a harem of girls who love you and your crush is a Psycho Lesbian, you still remain Kaede-sexual.
Tamaki loves only Haruhi, though he has a tendency to flirt with anything in a skirt.
Haruhi's father is technically bisexual but has decided he could never love another woman as much as he did Haruhi's now-deceased mother, and thus is effectively gay.
Itsuki from YuYu Hakusho is "Sensui-sexual". He even loves all of Sensui's personalities, no matter how vile. His official favorite is Shinobu, the original one, although Naru - a young girl who is naive and innocent - comes in second. It's worth pointing out that Itsuki's manga version talks about how he started hanging around young Sensui because he knew the other would break eventually and he loves to see pure things shattered.
"Like a little girl who thinks babies come from storks growing up to star in porno films. I love that kind of thing."
Amane Misa from Death Note can be described as "Kira-sexual" or "Light-sexual". (Although if she had to choose one or the other, she'd choose Light.)
Fandom has described Subaru in X1999 and Tokyo Babylon as "Seishirou-sexual" and vice versa, though it's pretty common for CLAMP characters to pick one person and stay with him or her for their entire life.
In the same series, since Mikoto has No Social Skills, it's very hard to pin down the object of her affection (if she even has one), but given her protective nature toward the protagonist, she can best be described as "Mai-sexual" (pun intended).
Potentially Natsuki toward Shizuru, as Natsuki's interest in her and main reason for considering her the most important person in her life is her reaching out to her when she couldn't trust anyone. In HiME, conversely, Shizuru is very clearly interested in Natsuki to the exclusion of anyone or anything else.
An even more specific variant of this trope appears in Kamen no Maid Guy, where the Leader of the Naeka's breasts fanclub only has eyes for her... or at least her chest. Strangely, Naeka finds this almost romantic. After he's put through Easy Amnesia (for the second time that episode), he reverts to normal, and his eyes are no longer on Naeka only.
Yuki, who is a M-t-F transsexual, in No Bra doesn't seem to have any sexual interest in girls and has flat out said she doesn't like boys in that way. In her own words, "It's not that I like boys. It's only because the only person I love is a boy." She's in love with her childhood friend, Masato, and seems to be physically attracted to him.
At the end of the manga, she momentarily seems to switch from Masato to her actual childhood friend.
Souichi from The Tyrant Falls in Love is most likely "Morinaga-sexual," despite being utterly in denial about it; he states on more than one occasion that he puts up with Morinaga's sexual advances because he's Morinaga, and that not even blackmail will make him tolerate having sex with anyone else (and yet he manages to overlook the painfully obvious implications of this...). Admittedly, Souichi is a rabid homophobe, which would make him heterosexual by default and his relationship with Morinaga more of an If It's You, It's Okay situation...if any sign was shown of him being interested in anyone else, male or female, much less having any friend other than Morinaga.
In Zetsuai 1989, Nanjo Koji is Izumi-sexual, having fallen in love with him at first sight and Izumi being the only person he ever felt emotion for. When they coincidentally meet again years later, Koji all but stalks Izumi and declares to another prospective love interest that even if said love interest was Izumi's twin, he would still love only Izumi.
Tomoyo's eyes did briefly wander over to Touya, after Tomoyo noticed that he and Sakura "have the same lovely ears", thanks to a Relationship Writing Fumble where the writer of that scene didn't know that CLAMP intended Tomoyo to be hot for Sakura, and so they spun it that she only crushed on Touya because he reminds Tomoyo of Sakura.
Hinata Hyuga from Naruto is "Naruto-sexual", as a result of her admiring Naruto's persistence and determination, and having become more self-confident as a result of his influence.
Karin is very much "Sasuke-sexual''. Even when she seemingly gets fed up with him and wants nothing more to do with him, she actually turns out to have developed a split personality, one personality obsessively loving Sasuke and the other obsessively hating him.
Obito is very much "Rin-sexual". To the point that he willingly joins Madara after she is killed purely to make a dream world where she is alive again, instead of moving on like any normal person should.
Prince Diamond only has eyes for Sailor Moon, and he greatly desires for her to feel the same way about him. It's tragic in the anime since he's an Anti-Hero, but in the manga he's pure evil. The musical plays up both sides of his personality, including one scene where he's singing his character song while Sailor Moon is lying passed out on an altar. He later turns into a complete monster.
Michiru and Haruka are eternally devoted to each other; rarely expressing interest in any other woman. The latter qualification is because Haruka sometimes uses her Bifauxnen looks to play The Tease with the other girls.
Kagami from Lucky Star can be described as Konata-sexual after seeing her character song 100% nai nai nai, the OVA and the Pocket Travelers manga.
Although Chizuru from the Hen manga has sex with men often, the only person she has ever fallen truly in love with is Yamada — a girl who transfers into her school.
Chinese Amazon Shampoo of Ranma ˝ could conceivably be dubbed a "Ranma-sexual". She has absolutely no qualms whatsoever over embracing, dating or otherwise being affectionate towards her reluctant Gender Bender fiancee no matter what form he's in, despite the fact that she canonically called Akane a pervert whilst insinuating that Akane was really a lesbian in love with Ranma's cursed form. She displays no interest in any other man, even men who manage to prove themselves as being stronger than Ranma.
Gotta wonder if this the case with the Mobile Suit Gundam SEED franchise's Athrun Zala. Even after the Ship Sinking with his original love interest, he ignores or fiercely resists the romantic advances of the several attractive girls throwing themselves at him. Some like to call him loyal, but judging by his Heel-Face Turn track record, this trope is probably closer to the mark.
Despite what the Yaoi FangirlFandumb will try to tell you, Heero Yuy is this to Relena Darlian, although it's hard to tell given his personality. It is clear that Relena is FAR FAR ahead of any other characters though, sorry fangirls.
Soifon from Bleach has eyes only for her Yoruichi-sama.
Orihime once said that if she were reincarnated five times and lived five different lives, she'd fall in love with Ichigo every time.
Chizuru from Kanokon is like this (Shotacon) for Kouta. It actually becomes in some ways rather disturbing, as Chizuru looks like a voluptuous young adult, but Kouta has a rather boyish appearance about him, so it's sexually inexplicit shotacon. It also frequently gets turned up to near Rape Is Love levels by Chizuru with elements of Double Standard: Rape, Female on Male thrown in.
Implied to be the case with Yahiko toward Tsubame in Rurouni Kenshin after his feelings grow from a crush to something more. Outright stated in the second extra chapter after the end of the manga where Kaoru sends Yahiko on a month-long mission teaching at a friend's dojo while the owner was away. Said owner, concerned about leaving his very pretty daughter alone with his male students, asked Kaoru for help. The reason she sent Yahiko was because she knew Tsubame was the only girl for him and that he wouldn't even think about any other girl, much less do anything untoward. She even says this right out to Yahiko, much to his sputtering embarrassment. As expected, he shows no attraction for the daughter and, upon his return, immediately heads off to see Tsubame with Kaoru again restating her previous observation.
Pretty strongly implied with Misao toward Aoshi. She's loved him (one way or another) since her early childhood and is still very focused on him even in the manga's final arc. Of the series's four female protagonists, Misao alone never expresses interest in Kenshin (though she admits that Enishi is "finer of face than she expected" in the Jinchuu arc).
Yuuki from Kanamemo is Yume-sexual. She seems especially pleased at the idea that Yume, being born with a silver spoon in her mouth, would always be a kid, making it so that Yuuki would have to take care of her forever.
Prunus Girl: Aikawa is the only person who ever gets a reaction out of Maki, who is otherwise completely uninterested in "girls". He "deals with" one love letter off-page, thinking that ever since starting high school *cough* those letters failed to get him worked up, and obliviously brushes aside the last attempts of another girl to get his attention.
The original Japanese version is much more blatant with this, while the English version tries to make it seem more like passionate loyalty. It doesn't work.
Yami to Boushi to Hon no Tabibito has a debatable case of this with Hazuki. It's pretty clear she's a lesbian, but the only one she has eyes for is her adoptive older sister and best friend Hatsumi, to the point that she automatically trashes a gift given to her by an akogare-ing classmate within 5 minutes of the start of the first episode.
Congratulations, Miaka/Tamahome shippers—not even Soi's talents could tear Tamahome away from his lady love.
Chizuru in Seitokai no Ichizon claims this when asked about the kind of person she likes: Kurimu and only Kurimu.
Kagura Sohma from Fruits Basket is disturbingly attached to her cousin Kyo, and tends to express her psycho-love through violence. Then she'll snap out of it and go ultra-dere before abruptly switching back to pummeling the poor guy. She extracted a Childhood Marriage Promise from him by threatening his life, for Pete's sake! Though she later realizes that her love for Kyo stemmed mainly from her belief that loving him would make up for her earlier horrible behavior towards him and willingly concedes him to Tohru, the mangaka herself says that a part of her will always love Kyo.
Tohru herself never shows romantic interest in anyone besides Kyo, eventually proving that she loves him even when he's a cat or a foul-smelling monster.
And Soul's attraction to Maka takes the cake, what with Soul dismissing any and all girls that wish to be partners with him even after becoming a Death Scythe and not technically needing Maka anymore. It even reaches a point where he manages to fight off his insanity without Maka's help for her.
From Pokémon Special, most fans generally agree that Yellow is canonically Red-sexual. The Pokémon Fan Club President, though not speaking of romantic manners, at one point wonders, "Is Red all this kid thinks about?"
Same thing with Ruby and Sapphire. They had fallen in love when they were kids, and changed their personalities for each other. When they remeet and manage to not recognize each other, they end up falling in love with each other all over again. Not even Team Magma Admin Courtney's apparent interest in Ruby could tear his eyes away from Sapphire.
In Magical Girl Lyrical Nanoha, Subaru is often identified by fans as "Teana-sexual". Others assume her adoration of Nanoha has a sexual dimension and thus see her as just a lusty lesbian.
Nanoha herself is sometimes seen as Fate-sexual. Fate has also been seen as Nanoha-sexual.
The anime version Sasame from Prétear is a bit of a flirt, but when it comes right down to it he's Takako-sexual. After falling in love with her and failing to tell her before she became the Princess of Disaster, he pined after her for 16 years and eventually abandoned his friends and everything he believed in for the chance to be by her side. The manga version of Sasame is described as a "playboy" however.
Yuki Nagato from The Melancholy of Haruhi Suzumiyamay be Kyonsexual. She speaks to no one except him on any regular basis, has promised to protect him, and told Kyon in a dire situation that she would regret losing him. Once, she even rearranged reality so that she could live a normal life, and the new world essentially set up a romance between Kyon and Yuki.
It's more likely that because she is still learning to express emotions, she's attracted to Kyon over other boys simply because of their established relationship. When Nagato briefly thought she had a secret admirer, Kyon thought he might have seen her show a hint of disappointment when she discovered it was a misunderstanding.
It's pretty surely established that Yuki is head over the heels for Kyon. It's the question whether she's able to love anyone else is up in the air.
In Get Backers, the Ax-CrazyPsycho for Hire Takuma Fudou can certainly be described as "Ban-sexual." He shows a lack of interest in anything non-Ban related, and any time he so much as senses Ban's presence, his "mind goes blank," he gets very excited and starts feeling a "throbbing desire." Countless times, he screams at Ban to "give his body to him" and "meet his desires." He also shows great resentment and jealousy towards Ginji (whom he claims he dislikes because Ban ignores him when Ginji is around), as well as Hevyn.
In Keroro Gunsou, Momoka is clearly Fuyuki-sexual; when she thinks that he's been turned into a girl (it's actually his mother aged down by Kululu, long story), she's completely okay with it. Tamama could also be said to be Keroro-sexual.
Giroro and Koyuki are both Natsumi-sexual. More prominent in the manga with Koyuki, though.
Durarara!!'s Shinra is a very vocal Celty-sexual, claiming that, were she not to exist, he would probably be asexual. Celty, for her part, is worried that he might be Dullahan-sexual, and dreads another one showing up and stealing him away.
Usui Takumi in Maid-Sama! seems thus far to be terminally Misaki-sexual. Not only is he notorious for turning girls down at the beginning of the series, once Misaki piques his interest he doesn't seem to have more than a passing interest in other people at all except so far as how they relate to Misaki.
In Sensual Phrase, both Sakuya and Aine are like this for each other, though Sakuya is more extreme about it.
Despite being in a harem manga, and clearly Genre Savvy about it, Miki of Hayate the Combat Butler has only shown interest in one person, Hinagiku. She's even gone so far as to tell the one who's the center of the (main) Harem, that she has no interest in him.
On the other side of the wagon, Kotetsu Izumi's older brother has been shown to have no interest in anyone but Hayate. This may simply be that we haven't seen any interest being displayed beyond that in Hayate and trains.
B Gata H Kei is filled with many characters who have this. Both Kosuda and Keiichi are Yamada-sexual, Kyoka is Keiichi-sexual, and Mayu (and eventually Yamada) is Kosuda-sexual.
In Kimi ni Todoke, Sawako and Shota are both like this for each other.
Apparently, the author actually dubbed Sweden as "homosexual for Finland" in his old notes. They were very old notes though, and aren't around anymore, so the situation might be different now.
Spain could, from an angle, be viewed as "Italiasexual". He's proposed to both of them, is extremely affectionate to Romano and thinks Veneziano is adorable, and yet doesn't show much of this to any other characters. Could be because he's not shown very often, or because not many of his relationships have been shown, but as of now it looks like this...
One joke/explanation for Germany/Italy shippers is that the usually stoic Germany is Ita-sexual.
Come on, you guys forgot that Holy Roman Empire is Ita-sexual? Some fans will tell you this doesn't count because of the Germany-is-HRE theory, making this a double-submisson. If I recall correctly:
Holy Roman Empire: No matter how many hundreds of years go by, I'll always love you more than anyone in the world!
In Bakuman。, Miho Azuki has never been interested in anyone other than her classmate Moritaka Mashiro, as she has been attracted to him since fourth grade.
From all indications, Firo from Baccano! seems to be Ennis-sexual, despite the fact that she takes a long timeto catch on. Though they're both immortal and have plenty of time, there's still something to be said for the fact that Firo waited fifty years for her to agree to marriage, and though they're now living together hasn't tried anything.
Illsaide from Vampire Game seems very much to be this way towards Ci Xeneth's princess Falan, even after it's discovered that he's her half-brother via her father Jened and the Lord of the Sea's daughter, making him half sea monster as well.
However, Illsaide shows some attraction towards Duzzel in his Ishtar form for a little while. Even going as far as kissing Duzzel.
Lum of Urusei Yatsura is Ataru-sexual, having eyes for only her "Darling" in spite of him being the biggest lech in the galaxy and constantly running away from her to hit on other girls, and every single other male around her age being enamored with her.
Belldandy of Ah! My Goddess towards Keiichi. Especially applicable in that Keiichi was once gender-flipped into a woman, and Belldandy didn't care a whit (except caring in that Keichii himself was somewhat dismayed).
Randoll of Future GPX Cyber Formula is completely Asuka-sexual, and he doesn't show interest in anyone other than her. He does tries to flirt with Rena in the PlayStation game, due to being similar to Asuka (but ultimately fails).
Andre Grandier of Rose of Versailles loves Oscar and nobody else. Likewise, Rosalie is also this towards Oscar, although she hooks up with Bernard at the end of the series, but still has some longing for Oscar.
Possibly Chiba from Wandering Son. In the several years from 5th grade to high school she has shown no signs of liking anyone but the protagonist, whom she likes no matter his gender (though she seems to prefer him as a boy).
This is a result of the Steel Angel's design. She is programmed to love whomever awakens her. Male, female, who cares? Whomever awakens her is her only love.
Shirai Kuroko from A Certain Scientific Railgun is obviously Onee-sama-sexual, she doesn't even look anywhere else! It might be more accurate to say that she's Misaka-sexual, since she also though Mikoto's mother was a hottie. Let's just pray she never finds out about the thousands of clones... Even after having her memories of Mikoto removed her heart starts pounds and she begins blushing at the mere sight of her
In Karakuridouji Ultimo, Rune toward Yamato, by way of Reincarnation Romance. As a result of his gender changing, he goes from being a heterosexual girl in the past to a homosexual boy in the present, but still longs for the same person.
Gui from ˝ Prince has stated that he would like Prince no matter the gender or age. He's not homosexual, he's Prince-sexual.
Silver Diamond 's Chigusa will forever be Rakan-sexual. (And considering he's immortal, that is very literal.)
Luka from Uragiri wa Boku no Namae wo Shitteiru is this way towards Yuki. The fact that the pretty girl he fell in love with is now reincarnated into a male body does nothing to discourage him in his unfailing loyalty and devotion.
Kubo of Baka to Test to Shoukanjuu is Akihisa sexual. Reinforced even further in one of the OVAs, where for once he's shown being attracted to a girl...who's actually Akihisa crossdressing. He then spends the rest of the OVA torn between Akihisa and Mystery-Girl-Who's-Also-Akihisa.
Faust VIII from Shaman King is most decidedly Eliza-sexual.
Lucy/Nyu of Elfen Lied is Kouta-sexual even if she does tend to initiate Les Yay with other girls.
Naruse from the yaoi manga Kawaii Akuma and its sequel is definitely Akiyoshi sexual.
Tsukune of Rosario + Vampire is Moka sexual. And Kurumi and Mizore are both Tsukune sexual.
In Hot Gimmick both Shinogu and Ryoki are Hatsumi-sexuals.
In Gravitation Shuichi is Yuki sexual and Tatsuha is completely and utterly obsessed with Ryuichi. Whether it's faking illnesses or dressing up in an animal suit, Tatsuha will do anything to get Ryuichi. Unfortunately for Shuichi, if Tatsuha can't get his hands on Ryuichi he forces his UST upon Shuichi as Shuichi resembles Ryuichi.
Tatsuya of Hekikai No Aion is Seine-sexual. Being the Nice Guy, he doesn't show any kind of attraction to any other girl who isn't Seine; and he has other options that he already knows love him, but still, his eyes are upon the kuudere Seine so much that he may cross the line and almost opendly be a Lolicon for her 8-year-old form when he go intro her dreams of the past.
And she has been in love with him for just as long. In an interesting twist on this scenario, despite them both being cognizant of each others feelings (after some inevitable dancing around), Medaka has tried to get with Zenkichitwice and he has turned her down both times (the second time was just poor timing on her part really, he would have said yes had she asked even 6 months earlier by his own admission).
Their attraction and loyalty to one another is so strong that in the end, despite the rejections, the shoddy timing on either part, the fights, even dying (temporarily) they kept right on waiting for one another, never even seriously considering having a different significant other, for a bit over 25 years before getting together. Now that's dedication.
Suzuka: Yamato even when in other relationships, is obsessed with her. In the manga, he turns down other women who are interested in him, and flat out refuses sex because of his obsession.
Jack from Pandora Hearts has only ever expressed any sort of attraction toward Lacie, though he straddles a very thin line between love and full-on obsession. Vincent, who's always sleeping around with various noblewomen for his own personal gain, has only been shown to be truly passionate about Gil.
InuYasha has a unique take on this trope with the title character. The only two women Inuyasha has ever loved are Kikyo and Kagome, and since Kagome is Kikyo's reincarnation...
In the Spin-Off Manga Puella Magi Oriko Magica, Kirika adores Oriko to the point that she refuses to associate with anything that isn't related to or is disliked by Oriko, will fight people she considers saviors if she wants her to, and even purposely went Witch to send Oriko's enemies into despair and kill them.
Puella Magi Kazumi Magica: The Pleiades Saints loved Michiru to the point that they made 13 clones of her (Including Kazumi) from her Witch's corpse. A straighter example is Mirai Wakaba, whose feelings towards Saki can get pretty possessive - though Saki herself seemed to be far closer to Michiru. Interestingly, while most witches are mindlessly destructive, the witches created from Saki, Mirai, and Kirika were still able to recognize their former lovers.
Judar from Magi - Labyrinth of Magic is obsessed with Sinbad to the point that he threatened (and then attempted) to destroy his entire kingdom in a bid to get him to switch sides. he also talks about wanting to "make [Sinbad] mine".
Kyo of Black Bird is a Misaosexual. After making an agreement to marry her when he was 8 and she was 5, he devoted the next ten years of his life to taking over his clan from his brother, an action leading to countless deaths, including his own mother's, because that was the only way to secure a marriage with her. He never once met Misao over those ten years and never once showed any interest in any other woman despite that. He has since married Misao and does not hide the fact that he really cares about nothing but her, being willing to see anyone die if it means he stays with her, even his entire clan. In turn, Misao is an entirely Kyosexual, who even after having all her memories of their childhood sealed away, was still in love with Kyo when she met him again.
Strawberry Shake Sweet: Julia. Not only she has eyes for no one other than Ran, but she doesn't even reconigze her own feelings at first, indicating that she's never been in love before.
In Fables volume 3: Storybook Love, Bigby says Snow White is the only one he can't ignore, making him kind of a Snow-sexual.
In Camelot 3000, when Sir Tristan is reincarnated as Lady Tristan, it causes her considerable distress and confusion. But Isolde (reincarnated as a woman, as in her first life) has no confusion at all. She's in love with Tristan, regardless of Tristan's sex.
In Runaways, Chase Stein only ever shows interest in Gertrude York. As in, to the point where he was very upset with Perky Goth Nico kissing him after saving them both from a death situation, crying openly when Gertrude dumps him, and planning to sacrifice himself from reality to bring her back. Gert herself only has eyes for Chase, even though he worries that she'll find the more intelligent Vic to be more attractive.
Platinum of the Metal Men, in her attraction to her creator Doc Magnus. She's not into other robots, or even any other men. This is in contrast with the rest of the team (besides Tin), who seem to be asexual.
This is prevalent in TOS-verse Kirk/Spock slashfic, in that Spock was not a sexual being outside Pon Farr except where Kirk was concerned. Actually, the same could be said for Spock/McCoy fanfic as well.
Axis Powers Hetalia fans sometimes dub America as "Iggysexual" towards England and vice versa, mainly because they're a very popular Fan-Preferred Couple (and it not being that hard to see America as being Tsundere for England only); ditto with Romano as "Spain-sexual". Japan is also sometimes depicted as being "Greece-sexual" with Greece as the only nation he can overcome his emotional reservedness and intimacy issues with.
Fans of Austria, Hungary, and/or Prussia have a lot of fun with this one. Depending on shipping preferences, Hungary and Prussia have always loved each other and her marriage to Austria was a loveless political union, Hungary and Austria only love each other, even after their divorce, or even Austria and Prussia only have eyes for each other. Plenty of fans just avoid the issue by saying that Prussia/Austria/Hungary are only interested in each other, going for a OT3.
Subaru is described by Nove as "Teana-sexual" in Relationships Series, and her older sister Ginga asks if she'd be attracted to Teana even if she were male.
A couple of this author's stories take this trope to a ludicrous extreme, whereby every single character in the story appears to have Single-Target Sexuality for... whoever the main character is. Even the Pokemon!
This Scream fanfic as an OC that seems to be Charlie sexual. Early on, it's hinted he's the only person to stir her....that way. She's seventeen at the time. Later on, when she starts dating someone else he does nothing for her and she's still stuck on her friend. Yeah, it's weird
Many, MANY Sherlock/John fanfictions from the BBC show fandom have this implied or used in their works. Sherlock is generally regarded as asexual, unless it's John, so, "John-sexual." John is generally heterosexual, unless it's Sherlock, so, "Sherlock-sexual."
Whether or not Koizumi Itsuki fits this trope depends on the chapter of You Got HaruhiRolled! you are reading. Most of the time, he shows attraction to Kyon, and in one chapter explicitly calls himself Kyonsexual, in other chapters he exhibits his Abridged Series characterization, where he is equally shamelessly a Lolicon. Further confusing matters is that in one Spin-Off chapter he does an entire song-and-dance routine about being straight all along. Far less ambiguous is Kyouko's lesbian crush on Sasaki, which has held for all chapters, except possibly for a gag in the court case arc where she states that she is not a virgin.
In the Hunger Games fanfiction Some Semblance of Meaning, Obsidian seems to only have an interest in Vale. He doesn't even respond to his district partner Amber's advances, except with disgust—and apparently, she's quite attractive. Also, after Vale's death, Obsidian seems to try and make himself fall for Vale's sister Maybelle, but it's obvious—to her and everyone else—that he is still hung up on Vale.
Sherlock and Beth Holmes in Children Of Time. Sherlock is Beth's First Love, and, though she admires other men (like Jeremy Brett), Sherlock remains her only serious attraction. Sherlock, on the other hand, falls in love with Beth long before he realizes it, and eventually tells her (during their honeymoon) that he would never have given romance much thought if she hadn't entered his life.
Demon Spawns Series: Corey is only in love with childhood friend Laney. After all, she was the only person his age who saved him from some local bullies.
The Monster University fanfic Born To Please has Chet Alexander becoming obsessed over Johnny Worthington, though it takes a while for the former to realize his true feelings for the latter.
Jamal from Slumdog Millionaire spends years looking for Latika after they are separated as children.
Mrs. Lovett is Benjaminsexual, even when he becomes Sweeney, and when they were both married to different people.
Sweeney is Lucysexual. He escapes from prison to find her again and, upon learning she drank poison, sets about killing Judge Turpin to avenge her memory. And when he finds out that he accidentally killed her, he willingly lets Toby slit his throat.
Edward Bloom of Big Fish for his wife. As the Unlucky Childhood Friend says of him: "For Edward, there are only two women in the world. His wife, and everybody else."
Forrest Gump never seems to notice any women other than Jenny, from when he was a kid.
In Elektra Luxx, Holly invokes this trope as she declares her love for Bambi.
Anakin from Star Wars was in love with Padmé since he was nine, and his love never weakened, even though they didn't meet for ten years after The Phantom Menace. Even as Darth Vader, he never showed interest in any other people.
Paulie professes to have love only for Tori in Lost and Delirious. It's debatable whether this is really an accurate description of her sexuality, or just her acting out her histrionic, melodramatic personality.
Paulie: You think I'm a LESBIAN?
Mary: You're a girl in love with a girl, aren't you?
Paulie: No! I'm PAULIE in love with TORI. Remember? And Tori, she is, she IS in love with me because she is mine and I am hers and neither of us are LESBIANS!
Peter Parker in the Spiderman Sam Raimi film series. While the Peter Parker of the comics has had relationships with several women, in the film version he's stated to have had a crush on Mary Jane since early grade school and never showed interest in anyone else. Even the time he went on a date with gorgeous Gwen Stacy was to make MJ jealous and he was under a corrupting alien influence at the time.
In Flowers for Algernon, when all of Charlie's sexual experiences are passionless, confusing, or painful until he has sex with Alice Kinnian, the only woman he's truly loved.
Edward Cullen, despite having lived for over 100 years as a teenage vampire at the age when males should be at their most sexually curious, has never been interested in any girls. Then he meets Bella, gets a whiff of the delicious scent of her blood, and becomes a committed Bella-sexual.
Jacob Black, who follows Bella around and remains in love with her no matter how many times she tries to let him down or how married she might become. He insists to Bella that he will never imprint on anyone because he never even sees anyone but her. Jacob even drives around town trying to interest himself in other girls but it does not work. Switched up later, with the birth of Renesmee, when he imprints on here, and becomes Renesmee-sexual instead of Bella-sexual. There's some implication that Jacob had in fact always been Renesmee-sexual, and had in fact imprinted on her before she was born but thought he had imprinted on Bella.
Bella, being mostly Edward-sexual with a little side of Jacob-sexual. There's no indication that she was ever interested in anyone before moving to Forks.
This is taken to ridiculous extremes with Alice, who becomes Jasper-sexual after having a vision of him, years before she even met him. And the entire concept of imprinting centers around a werewolf becoming utterly devoted to a single woman, speculated to be the one best suited to having his children.
In Lois McMaster Bujold's Barrayar books, Aral Vorkosigan is an interesting variation: he's attracted to other men — and to Cordelia, the woman he loves. Got lampshaded in Barrayar, even.
Jaime Lannister has, according to him and to the best knowledge of the reader, only ever loved/had sex with his twin sister Cersei, to the point where he's disturbed when he experiences attraction to another woman. Not so much the other way around (to quote Tyrion, "No one can say that my sister does not love her family").
Chronicles of the Kencyrath: The heroine Jame and her twin brother Tori only seem to get sexual feelings for each other, though it's only gone as far as shared highly sexual dreams and one kiss. (Word of God says it's going to go a lot further than that.)
Severus Snape has never gotten over his devotion to his childhood friend Lily Evans, even decades after she assured him that she loathed him.
Ginny is a mild example of the trope. Late in the series, she admits that she started to date Michael Corner largely to get over Harry, who at the time was not romantically interested in her but in Cho Chang. Before Harry finally sees the light, she also dates Dean Thomas. But from the time she first saw Harry when he was eleven and she was ten, he was always first in her affections.
The Great Gatsby centers around Gatsby's unending pursuit for Daisy and no one else. The term "Gatsby" has even come to describe real people who have Single Target Sexuality.
Orlando by Virginia Woolf demonstrates in passing that this is not a good thing for an Abhorrent Admirer to have, as even a Gender Bender fails to get rid of him.
Justine in The Dresden Files is Thomas-sexual. However, this is originally less about love and more about the fact that an Emotion Eater is about the only thing that can keep her mental illness under control. And while they finally admit they're in love later ... well, Thomas is a White Court vampire, so The Power of Loveburns him. Ouch, Star-Crossed Lovers. Although Justine eventually realizes her Thomas-sexuality can be used a solution to that particular issue.
In the Codex Alera series, the extremely attractive and strong Marat woman Kitai is Tavi-sexual. Justified because the Marat form deep pair-bonds with an animal, and she bonded with Tavi by mistake. In fact, this was Played for Laughs when Kitai was initially annoyed and said "I wanted a horse."
In the Incarnations of Immortality novel Being A Green Mother, a succubus chooses to focus her intense sexual drives on one member of a particular rock band. This is aided by unique properties of the magical Jonah's Whale (yes, that Jonah and that whale).
"Some men want any redhead in general, and some want one redhead in particular. Those who want a redhead in general have their fun and go their way. But you ... you want one redhead in particular. And I'm not her."
In the Charles de Lint novel, Memory and Dream, the deceased Kathy describes herself as not being gay or straight, she doesn't love anyone else, just her best friend (and protagonist) Isabelle...who is, if not precisely homophobic, definitely very straight.
Alec in Lynn Flewelling's Nightrunners - he has quite a narrowed taste. Before he and Seregil achieve the Official Couple level he sleeps only with women (one precisely) who remind him of Seregil. If you're not dark brunette, slender and blessed with a face that at least vaguely resembles Seregil you either stand no chance - or you need magic to get into Alec's pants.
Peeta Mellark from The Hunger Games is Katniss-sexual. He fell in love with her when he was just 5 years old and heard her singing - at that moment he "knew he was a goner." He presumably went on to love her for the rest of his life (in the epilogue they were married and had two children) even overcoming the fact that he was tortured and brain-washed to hate her by the Capitol while captured. Subverted later on. He tells Katniss that he noticed a lot of other girls but none of them made the same impression as she did. He also seems to be somewhat attracted to Johanna Mason.
The Kantri of Tales of Kolmar tend to be like this since they mate for life. One fell in love with a human despite the species barrier, and although he'd have been happy to see her as another Kantri, he found her beautiful despite the strange form. Conveniently he ends up human. In a later book Will is sought after by many women, but finds this annoying and only has eyes for Aral.
Nawat from Tamora Pierce's Daughter of the Lioness books is Alysexual, possibly because he's actually a crow who was turned into a human and real crows mate for life.
Lifebonded couples in Mercedes Lackey's Heralds of Valdemar books are a variation of this. They may have been with others before they find their lifebonded, but afterwards they are definitely single target sexual. Additionally, any previous lovers are usually dismissed as casual sex/ pretty meaningless.
Stefan to Vanyel: "All - all I can tell you is that I think I'd love you if you were a hundred years older than me, or a deformed monster, or - or even a woman."
Vanyel is definitely this trope. Until Stefen shows up, his One True Love has always been Tylendel, his deceased first lover. In the intervening twenty or so years between Magic's Pawn and Magic's Price, the books indicate he's had only a handful of lovers - several of which were women who wanted to get pregnant but for whatever reason couldn't (One of whom was the Queen. The King was sterile.) It's heavily implied that Stefen was the reincarnation of Tylendel. Vanyel is so 'Lendel-sexual that he only falls in love again when the object of his attraction is reincarnated. That's dedication.
Darryl of Heart In Hand is Alex-sexual: not only did he never have any sexual interest in anyone until he ended up sleeping with his hockey rival on a regular basis, but he confirms through an experiment that he literally can't get it up to the thought of anyone - female or male - other than Alex.
In Across The Universe, Harley only ever loved his girlfriend, Kayleigh. He took her alleged suicide very badly, staying up all night to madly paint, and likes Amy so much because her red hair reminds him of koi (Kayleigh's favorite type of fish). Elder also becomes Amy-sexual, fascinated by her exotic appearance and free personality, which is unlike nearly everyone on the ship.
Anastasia Steele in Fifty Shades of Grey is entirely Christian Grey-sexual. At the age of 21, she never had attractions to men before meeting him and is not interrested in other men.
This is the universal orientation of every Elf in J.R.R.Tolkien's works. They love once and for life. With one exception: there is exactly one elf who is more than one person-sexual.
And Detoran herself if the sole target of a rogue bhederin (a kind of bison in the Malazanverse) bull's affections. It's played for laughs.
And in the later books we get Urb, who is strictly Hellian-sexual, though Hellian in turn is too busy getting, and staying, drunk to notice.
There's also Badan Gruk in Reapers Gale, who only has eyes for Sinter.
A more prominent example within the series is Trull Sengar, who never exhibits any inclination for anyone until meeting Seren Pedac in Midnight Tides. It's so obvious everyone except himself knows immediately.
Live Action TV
Although he once speaks of having had other girlfriends, Ned from Pushing Daisies only has eyes for Chuck, at one point telling her plainly that she's the only one for him. It's even lampshaded in "Smell of Success":
Emerson: Hell, before dead girl came along I didn't know what you liked or if you liked or if you had anything to like with. For all I know you could've been one of those people who was born with both but didn't use either.
Dick Solomon of 3rd Rock from the Sun seems to be "Mary-sexual". Subverted in the third season when they broke up and he noticed other women for the first time.
This is actually more of an aversion of this trope. From the beginning Dick was deeply interested in Mary, but any time they're not actually a couple he displays physical attraction to other women. There's also a period where he's having fantasies about Nina (and stupidly discusses it with Mary and Nina). However, he's only ever been in love with Mary and the few relationships and attractions he's had to other women have never been as powerful or important to him as her.
Ianto Jones from Torchwood seems only capable of having infatuation with one person at time, which (might?) explain why he doesn't actually consider himself bisexual.
Ianto: It's not men. It's just him. It's only him.
With the possible exception of the strip club audience of the first sketch, the only people ever shown being attracted to Mango are people normally attracted to women (otherwise-straight men, and Ellen DeGeneres). So... maybe he produces female pheromones?
On 'Allo 'Allo!, Lieutenant Gruber embodies this trope towards René, to the point that even when René is disguised for resistance activities, Gruber still finds himself immediately drawn to him. Even when René was disguised as a woman, the presumably gay lieutenant felt compelled to ask "her" to dance.
Except not, she's now with Zeke, and her Justin-sexual behavior has toned down greatly.
Willow from Buffy the Vampire Slayer, a lesbian, comments that she didn't first discover herself attracted to "women," but to one "woman" — her first girlfriend, Tara. (Indeed, some fans were a bit annoyed at first by their relationship, as before this Willow had always been shown attracted to men.) After Tara's death, Willow eventually shows attraction to other women and gets a new girlfriend.
Another odd example with the same character: one episode features a boy who has a magical jacket which causes any woman who sees him wearing it to fall madly in love with him. And it does work on Willow, too, leading to several amusing jokes when she and the other girls start fighting over him.
Steve Urkel from Family Matters is a Laura-sexual for most of the series, though he does get another girlfriend later in the series who ironically turns out to be Urkel-sexual.
Not quite present with Monk, as he has been attracted to a few women, and is technically probably asexual, but he still considers himself married even though his wife is dead, and the idea of actually being interested in another woman is quite a frightening prospect to him.
Happened to Chuck Bass on Gossip Girl. He may have been a healthy seventeen-year-old at the time, but neither the "erotical nor the pharmaceutical" did any good. If it wasn't Blair, it wasn't working. For this, Serena dubbed him "the eunuck".
Rory from Doctor Who is a raging Amy-sexual. So much so, that he is Mistaken for Gay... by Amy (she assumed he was gay because, though she'd known him since childhood, she'd never seen him show interest in girls. Turns out it was because from the beginning he'd only wanted her.)
There's a comic in which Amy and the Doctor are bodyswapped. Amy once comments that they'd better get this fixed or certain things◊ on and off the marriage front will be difficult, but after initial brainbreak Rory starts treating her and the Doctor exactly as before, down to holding Amy when Time Lord senses start overwhelming her and calmly threatening the Doctor when he does something that seems counter to Amy's long-term well being. At the end of the issue he says he doesn't care what she looks like, he loves her, and passionately kisses a Time Lord... but they've switched back. He's the last to know.
Whether intentionally or not, The X-Files has Mulder (of all people) becoming this towards Scully. In early seasons, Mulder would hit on other women, make lecherous comments, etc. By the end of the series, we hadn't seen that in quite awhile—it was all directed at Scully. It becomes a hilarious (and cute) plot point in the 2008 movie "I Want to Believe." The young agent who requests Mulder and Scully's help on a case develops (or already had, it's unclear) a crush on Mulder and hits on him quite a bit. Mulder doesn't notice...but Scully does.
Although Mulder does have a raging porn addiction.
Scully occasionally attempts to have relationships with other men, but her interactions with them are always forced. After her one date in the first season, the only other date we see her go on in the series, she's drugged. She is, essentially, Mulder-sexual from the time she meets him on.
Nikola Tesla in Sanctuary seems to have only ever loved Helen despite his advanced age. There are other attractive women on the show, but he pretty much sticks to complimenting (and harassing) Helen.
The second season of Game of Thrones, has a merchant try to convince Daenerys to marry him only for her to make it clear that she still considers herself married to the very dead Khal Drogo.
On The Vampire Diaries Elijah Mikaelson, over 1000 years old, has only ever shown interest in the Petrova doppelgangers; Tatia, Katerina and Elena, who all look exactly alike. Although he flirts with Elena, he is shown to have been in love with Katerina for over 500 years.
Damon Salvatore is a mild example of this. Although he's a notorious playboy and flirt, he has only ever been in love with two girls who look exactly alike, the aforementioned Petrova doppelgangers; Katherine Pierce and Elena Gilbert.
On White Collar, Peter is incredibly uncomfortable with and terrible at even flirting with a woman other than his wife.
Incredibly widely used in popular music through the years. For example:
The Platters, "Only You"
Only you and you alone can thrill me like you do and fill my heart with love for only you
"I only have eyes for you", composed in 1934 by Harry Warren and lyricist Al Dubin, and performed by artists as diverse as Frank Sinatra, Al Jolson, Billie Holliday, Rod Stewart, and The Flamingos.
My love must be a kind of blind love I can't see anyone but you... You are here, so am I Maybe millions of people go by But they all disappear from view And I only have eyes for you
"He Stopped Loving Her Today", written by Bobby Braddock and Curly Putman, and released in 1980 by George Jones:
He said I'll love you 'til I die She told him you'll forget in time... Kept some letters by his bed Dated 1962 He had underlined in red Every single "I love you" He stopped loving her today They placed a wreath upon his door And soon they'll carry him away He stopped loving her today.
"There Will Never Be Another You", written by Harry Warren and Mack Gordon
And in our moment of parting, This is all I want you to know... There will be other lips that I may kiss, But they won't thrill me, Like yours used to do
Even 90s indie pop got in on the game, as in "Anyone Else Isn't You" by The Field Mice, written by singer Bobby Wratten:
Other than you, I want no one If I can't have you, I want to be alone Anyone else isn't you And if they're not you, I don't want to know...
Arguably Toshi of X Japan, if the lyrics of "Crystal Piano no Kimi," his overwrought love poem for his lifelong (aside for 10 years) best friend and band co-founder Yoshiki are any indication.
Nina Simone's "My Baby Just Cares For Me";
Liz Turner is not his style, And even Liberace's smile Is something he can't see. I wonder what's wrong with baby? My baby just cares... for me.
The Steel Panther song, Community Property first appears to be this, with the line, "If suddenly you were a guy, I'd be suddenly gay." But then subverted with; "My heart belongs to you, but my cock is Community Property."
The Phantom: You alone can make my song take flight, and help me make the Music of the Night.
Les Misérables has Marius and Cosette be this for each other. This gets rather silly on the side of Marius, because he totally misses Eponine's incredibly obvious crush on him. Eponine, for her part, seems quite Marius-sexual, and thus helps him hook up with Cosette so he will be happy.
In The Winter's Tale, King Leontes refuses to remarry after the death of Queen Hermione, even though his advisers try to pressure him to do so. Paulina does have some hand in it, urging him to promise to not remarry unless she approves of the bride, but Leontes seems perfectly fine with agreeing to those terms. The way he speaks about his dead wife upon seeing her statue, and the way Paulina talks after Hermione comes back to life suggests that before his jealousy, the two had been deeply in love.
Nu-13 from Blazblue is this trope Up to Eleven: not only is she attracted to no one but Ragna, but she likes nothing else.
TsubakiYayoi, as well. Just as much as Nu-13, because she is prepared to take down anyone who tries to take Jin away from her.
Endrance/Elk from .hack//G.U. is "Haseo-sexual". Or "Mia-sexual" considering the first 5 games.
According to the creator, Revolver Ocelot is this way about Big Boss in Metal Gear Solid 3. Which certainly seems to explain some of his more disturbing behavior towards Solid Snake, a clone of Big Boss and a dead ringer for a young version of him.
His Snakesexuality is, in fact, so potent it overpowers brainwashing. At the climax of the fourth game, choosing not to fight a grapple causes Ocelot to give (old, radiation-burned) Snake a tender kiss.
Amy Rose of Sonic the Hedgehog is completely in love with Sonic, and no one else but him. In Sonic the Hedgehog (2006), she even claims that, if she had to choose between the world and Sonic, she would easily pick the latter.
From the same game, Marta is very much Emilsexual.
Tales of the Abyss has Luke fon Fabre who is clearly Tearsexual and Tear who is Lukesexual they're 9 years apart as well.... We also have Natalia who is Aschsexual the real Luke and Asch who is Tsundere but his brain only functions with Natalia being 60% of what he thinks about.
Dist is clearly Jadesexual. Arietta is also Ionsexual however, the Ion she loved, the real one, died of illness and the Ion with Anise is actually a replica. Maybe Anise is also Ionsexual?
Aigis from Persona 3. She will fall for the Protagonist despite being a robot and regardless of gender, though she has a little bit of Gayngst at one point if it's the female Protagonist.
Played to an extremely horrifiying extreme with Alma in the second First Encounter Assault Recon game, making her "Becket-sexual". Doesn't matter that Becket hates her and wants to destroy her, she is absolutely intrigued by him because he is a powerful psychic like her, and his rejection of her simply makes her even more interested in him. She makes it quite clear that nobody else matters except Becket.
Squall Leonhart of Final Fantasy VIII is Rinoa-sexual - completely disinterested in human relationships of any kind before he meets her, and obsessively devoted to her to the exclusion of all else once he admits to falling for her. This is mostly because Squall is a very emotionally damaged person, and Rinoa is the only one who is able to break through the mental barriers Squall erected to keep out everyone else.
Elis in Canvas 2 is Hirokisexual. She gets 15 confessions in a single day even when she looks pale and zombie-like, but rejects every single one.
Unusually for a Visual Novel protagonist, Souta in Kira-Kira: Curtain Call definitely has this going on for Yui, and won't let you forget it. His Inner Monologue points out any time he interacts with a woman who is not Yui that she is not as attractive to him as Yui. Combined with his Hot-Blooded-ness, he's been occasionally driven to spontaneously express his love for her in rather extreme (though not sexual) ways that have caused her friend to impose an informal restraining order on him.
Mizuhara in Kara no Shoujo has a severe fixation on Toko, though she says she's not a lesbian. Interestingly enough, there's a bad end where she convinces herself she is Toko (it's complicated) and decides the feelings of love and attraction she feels for Reiji are Toko's. Toko admits to no such thing and hasn't slept with Reiji despite what Mizuhara thinks, meaning that Mizuhara appears to have fallen for him herself.
Lambdadelta from Umineko no Naku Koro ni has eyes only for Bernkastel and maybe vice versa. They've lived for a very long time but has never mentioned another lover or romantic interest subside their declaration of love for each other. Lambda makes it very clear that she wants the game to keep on going forever so that Bern will be caged in it like a bird and forever be hers. Psycho Lesbian much?
Miyako in Maji De Watashi Ni Koi Shinasai, to the point that in all of the endings where she doesn't end up with Yamato, she's still shown to be waiting for him even decades later.
Kareha of SHUFFLE! Essence+ says in her route that she's never been in love before Rin, and likely would never have been if she hadn't met him.
Junpei, of Nine Hours, Nine Persons, Nine Doors, is very much Akane-sexual. It's implied he loved her when they were children, and he quickly (and obviously) falls in love with her upon meeting her again as a teenager. The game reveals that he is so "connected" to her that they're able to mentally link through time and space, allowing him to save her when she's a child, so she's able to exist in the present. Yeah, it's a Mind Screw.
The sequel deconstructs it, though. Future!Junpei spent his whole life searching for Akane after she left him to put her huge plan into motion. He ends up lonely and embittered, having endangered his adoptive son through his infatuation for Akane, and admits during the 'Another Time' ending that he was Loving a Shadow. Long story short? Loving someone is great, but don't let it control your entire life. Also, given that- for all he knew- Akane didn't even reciprocate his feelings, Junpei's actions look kind of creepy.
Luna is another example (technically speaking; she's a GAULEM, and doesn't have sexual characteristics). She's in love with Sigma. Both his past self and several-decades-later future self.
Grace from El Goonish Shive is "Tedd-sexual". It appears to be simply a result of her Uryuom heritage — the Uryuom being a One-Gender Race of alien shape-shifters. Since they can change their external shape at will, they form relationships based primarily on concepts and mental connections. Grace, being 1/4th Uryuom (or so), has inherited this disposition. However, in one non-canon story where reality becomes altered so that Tedd is (and always was) female, Grace hooks up with a different character instead (way to go Sarah!). Although this might be explained by the way, like in every alternate universe where the two are of different genders, the female Tedd and Elliot are in a relationship.
It's actually kind of a sliding scale. Fatima is described as "more Asexual than Collin", and by the end of the comic is married, though it's vaguely implied she's not planning on having sex with her husband. (He seems okay with it.)
Alex/Murfs of Khaos Komix didn't see what the big deal about sex was until he met Tom and became intensely attracted to someone else for the first time in his life. He even calls himself "Tom-o-sexual."
Awkward. has Alex, who is, as a result of years of harsh rejections, a depraved Lestersexual as of the start of the series. Rather than being the result of actual attraction or compatibility, Alex's record of rejection leads him to crave it; Lester being both heterosexual and Alex's housemate, he is perfectly positioned to give Alex the rejection he comes to crave on a regular basis.
In You Could Make A Life, Marc had exactly one unsatisfying sexual encounter before meeting Dan and he hasn't looked at anyone not named Dan Riley ever since. Dan even describes him at one point as "THE one guy kind of guy".
Liam could also qualify as having this for Mike, especially considering that Word of God stated that he went through three relationships to try to prove that he was over Mike after their break-up and failed utterly.
In The Fate Of Paul Twister, Paul seems to have a case of this. He carries on a normal conversation with a gorgeous, nude forest nymph who's literally close enough to touch, he sees the exotic Amber as just another girl even though she breaks hearts left and right, and he finds Sarah's advances—who he always describes as physically attractive—more annoying than appealing, all because they're not the beautiful Aylwyn. (Who, unfortunately, doesn't return his affections.) The only time things are at all different is when he gets transformed into a half-dragon and overwhelmed by the dragon's instincts,but boy isthat a doozy.
On Hey Arnold!, Helga doesn't even notice the presence of any boys except Arnold. Not that she'll ever admit it publicly...
Waylon Smithers of The Simpsons was "Burns-sexual;" it was decided early on to have Smithers be in love with Burns, but there was a lot of debate about whether it was a matter of Single-Target Sexuality or if he was just gay. The latter seems to have won out in recent years, with Smithers having ex-boyfriends and going to a gay resort on vacation. However, some writers, like Al Jean, still stick to the "Burns-sexual" interpretation. Smithers' sham marriage itself (as seen through flashback) is clearly a parody of Cat on a Hot Tin Roof, a Tennessee Williams play/film about a man who neglects his wife and spirals into depression as he begins to realize he's in love with his dead (male) best friend.
This seems to be a recurring characteristic of the Avatar: Avatar Roku crushed on Ta Min since childhood, and immediately sets to work wooing and marrying her after traveling the world without her for twelve years, never showing any interest in anyone else. Avatar Kuruk fell in love at first sight with Ummi and apparently never loved again after she was taken to the Spirit World.
In Legend Of Korra, Korra is in love with only Mako, to the point where she shows a slight aversion to dating anyone else. Though she goes on a date with Bolin, it's more to avail herself of the Big Beautiful Man's Fun Personified nature than any real attraction. It's even lampshaded.
Shiro Shinobi (Opening narration of Spirit Of Competition): Since Avatar Korra has arrived in Republic City, she's only had eyes for one fellow; Mako.
In the Futurama episode "The Prisoner of Benda" we learn that Fry and Leela can be physically intimate even if Fry is in the body of a disgusting lobster person, and Leela has the body of an 180 year old man. There's a decent chance they did all that because they were too prideful to admit there are circumstances where one might find their significant other unattractive, which would make the person "shallow" in their kooky relationship.
Also, in the episode War Is The H-Word Leela disguises herself as a young man to enlist in the military, under which guise Zapp finds himself increasingly attracted to 'him':
Zapp Brannigan: That young man fills me with hope. And some other emotions that are weird and...deeply confusing.
And upon discovering her true identity after she's summarily kicked his ass:
Zapp Brannigan: Leela! So it's you I've been attracted to! Oh God, I've never been so happy to be beaten up by a woman.
While Cody from Total Drama Island started off flirting with any girl he could find, he quickly settled into being Gwen-sexual—he doesn't seem even the least bit interested in Sierra when he first meets her, before she even has a chance to horrify him with her Stalker with a Crush antics. Incidentally, she's Cody-sexual. So, since Gwen doesn't like Cody, we have an All Love Is Unrequited situation.
Mary and Susan from Johnny Test have no interest in any other boy than Gil from next door.
This may not count, as the only other boys we really see are their brother and their Abhorrent Admirer.
There was an episode when 'cute' teen scientists are taken from a t.v. show that looks just like Johnny Test, and Mary and Susan date them at the end.
Even though the sisters are identical, except for their hairstyles, Bling-Bling Boy only has eyes for Susan.
Except when he was hypnotized and told to stop being in love with Susan. He instantly made Mary the new object of his desire.
Gil is a rare inversion as he's attracted to most of the girls on the show, except Susan and Mary.
Callie the succubus from Ugly Americans, is in a fairly committed romantic relationship with Mark Lily. But he later finds out she has other, exclusively sexual, relationships.
As noted at its official page, Isabella from Phineas and Ferb is Phineas-sexual and has not shown attraction to any other boy (except the Beak, but he was Phineas (and Ferb) in disguise).
Candace is Jeremy-sexual. She's only ever gone after one other guy and he was essentially the British version of Jeremy.
Except for his brief attraction to a disguised Vexus, so he's at leastRobosexual.
Ben's partner Rook in Ben 10: Omniverse is explicitly stated in Bro In Space to have eyes only for his Childhood Friend Rayonna, despite being a Chick Magnet on his planet. The episode even has a scene where he coldly rejects another girl's invitation to a festival.
Moral Orel: Daniel Stopframe appears to be Clay-sexual although he dumps him in the finale and is seen going to a motel with a prostitute, although that isn't necessarily attraction.
Woodhouse has only ever been seen to have eyes for one person: Reggie Thistleton. In one flashback, he is seen sprawled on a bunk on a tramp steamer with two beautiful naked women, yet he is still crying Reggie's name. After having gone on a majorRoaring Rampage of Revenge, collecting 50 scalps of WWI-era Germans.
Season 4 introduces and kills off Lucas Troy, who faked his own death and sold uranium to terrorists to help finance a life for himself and Archer together running a Bed & Breakfast, despite protestations that he's not really "gay".
I prefer to think of it as a singular same-sex attraction.
Individuals who exhibit this in real life will sometimes identify as demisexual, which is where a person does not feel any sort of sexual attraction for anyone until a deep-seated emotional connection has been established. This is why their sexuality can be so single-targeted - they only have the hots for someone they really love.
HLA Hart, widely considered one of the greatest Jurists of the 20th century, was gay. At least until he fell desperately in love with his wife Jennifer. It is stated by some of his biographers that Jennifer was the only woman for whom he harbored sexual feelings.