Renton loves Eureka. That's the whole premise of Eureka Seven, a giant mecha anime. Renton, the hero of the story, falls madly in love with Eureka the moment she crashlands near his grandfather's house. Complicated by the fact that Eureka is not human and doesn't understand his feelings. Around the end of second season, Eureka begins to show more and more human emotions and eventually falls in love with Renton. The fact that she is a Coralian, however, leads her to think that she and Renton are unable to be together, leading to problems in their relationship.
The trigger to the action of Maison Ikkoku: Yusaku meets Kyoko and falls for her hard. Really, really HARD.
Andrei Smirnov from the second season of Mobile Suit Gundam 00 apparently fell in love with Louise Halevy upon seeing her.
There's an implication that Spike, at least, fell in love with Julia at first sight in Cowboy Bebop. It's not completely clear since their Back Story is never fully told, and there are only a few Flashback images to go by, but in what was apparently the first time Spike saw Julia he reacts with wide eyes and his mouth hanging open.
In Outlaw Star, Jim develops a crush on Hanmyo when he first sees her practicing her martial arts at a water fountain. Apparently, she felt the same towards him. Unfortunately, it was not meant to be, as she turns out to be an assassin sent after Gene, and Jim unknowingly causes her death.;-;..
Harry also falls for Melfina in this way to a ratherextreme extent.
A running gag in Pokemon is that Brock will fall in love with just about every girl he meets at first sight.
In Flame of Recca, Recca has this to an extent with Yanagi (The Dulcinea Effect kicking in full power). Despite meeting her for the first time, he swears to protect her and is shown blushing around her. As the series goes on, his feelings for her deepen (as do hers for him), but it's still nevertheless love at first sight.
Hardly one of those pure-hearted, Disney-esque fairy tale types, but apparently Gauron from Full Metal Panic! fell in love with 12-year-old Sôsuke at first sight, becoming something of a Stalker with a Crush towards him. Yes, warped and disturbing as it is, it's probably the closest thing Gauron has experienced to being in love. Even after five years of not seeing or hearing from Sōsuke, he still manages to recognize Sōsuke right away (at least, after he manages to get a clear view of Sōsuke's face), and apparently has never forgotten him ever since they first met. Gauron himself even confesses to Sōsuke that he loves him.
It's also shown in the novels, that Lemon was heavily implied to be attracted to Sōsuke. When he first saw him, he thought Sōsuke was very good looking and "charming", despite the boy being completely emotionless (read: "eye candy"). Later, after Sōsuke wins a tournament that helped win back Lemon's money, Lemon hugged him with "more passion than a french kiss would warrant," making Sōsuke slightly uncomfortable. And later still, Lemon gets drunk, and subsequently invades Sōsuke's personal space by hugging and groping him while blushing — which irritates Sōsuke to no end.
In Double Arts, after listening with agonized stoicism to an awkward not-quite-confession from Elraine that she's been falling in love with him bit by bit for the entire series, though she doesn't expect him to understand or even know what she's talking about... Kiri Luchile reveals to the reader, although not to her, that he actually did this. He's got his reasons for keeping quiet, though.
Creed, as well, is shown to have fallen in love with Train at first sight (in the short excerpt in the manga which shows the scene where they first met). It also cements Creed's status as a masochist, considering that his first interaction with Train consists of Train disdainfully glaring at him, and telling Creed to shove off, saying that he's useless to Train. Creed, being Creed, gets aroused by this and ends up becoming Train's Stalker with a Crush.
Baron Kelvin from Black Butler immedietly fell in love with a seven-year-old Ciel at first sight. This is barely justified by the fact that his love was based on how he views Ciel as special and beautiful, and only special people could interact with other special people. He then goes through a painful surgery to look more beautiful so he could have a chance as Ciel's romantic interest. His obsession leads to a point where he recreates the most painful of Ciel's memories of being sacrificed just so he could be there and be killed in the same way that Ciel had murdered his tormentors. "Talk to the demon", indeed.
Subverted in Baccano!. Claire Stanfield completely insists that Chane is The One after a single meeting...just like he insisted that the last girl he crushed on was his One True Love. And the one before that. And all those other ones too...
On the other hand, Chaneis the first person who didn't reject him on the spot when he declared his love.
For a straighter version, Firo claims Love at First Sight for Ennis. Too bad that she happens to be the one woman in the series that happens to be borderline asexual... It takes them fifty years to get married.
In Cardcaptor Sakura, both Sakura and Syaoran describe their attraction to Yukito as Love at First Sight. Subverted as Yukito was created to be the perfect match for Sakura, and his power was what Syaoran was subconsciously attracted to.. Still, Yukito falls for Sakura's brother, and Syaoran and Sakura fall in love with each other.
Been a while but where was it stated that Yukito was created to be a perfect match for Sakura? He was a pretty boy long before Sakura came into the picture. The entire reason why Syaoran was attracted to him is because of his powers.
Where Eriol said what was 'unexpected' in his plans was that Sakura fell for Syaoran, not Yukito. Yue was (in love?) with Clow, and so Clow thought that Yue would be less lonely if he loved his new master. Eriol also did not expect Yukito to love Touya.
In Higurashi no Naku Koro ni, Shion Sonozaki loses three nails, goes Ax-Crazy and considers suicide because she is in love with Satoshi Hojou - whom she talked with for maybe twenty minutes tops, during most of which he was under the impression she was her twin sister Mion.
In the anime that's more or less the case, but they have a more complex friendship in the manga and sound novels.
It is very difficult to interpret the Sengoku Basara anime's first meeting between Sanada Yukimura and Date Masamune as anything but this. Especially when Yukimura clutches his chest and goes weak at the knees while waxing rhapsodic about the One-Eyed Dragon of Oshu
Yukimura: It burns. Sasuke:... What? Yukimura: My heart is burning. Such presence. Such fighting spirit. Such... strength. Sasuke: So he, er, lights your fire, does he?
Later on, when Shingen asks Yukimura if Masamune was really that strong, Yukimura responds, with shining eyes: "He was! So much so that he shook my very soul."
This trope also took place between Kasuga and Uesugi Kenshin in the backstory; she was sent to assassinate him and instead fell in love with him.
In the ManhwaPig Bride Ji Oh and Mu Hwa get one of the most detailed Love at First Sight sequences ever. 4 pages are dedicated to the few seconds where Ji Oh first sees Mu Hwa perched on his dormitory veranda railing and there's even a close up of her reflected in his eye when she springs at him wielding a sword. The strangest part? They're only the Beta Couple!
Also happens in Crying Freeman, where Emu Hino becomes attracted to the handsome and sad assassin she saw first after he accidentally killed his targets in front of her.
Kodachi Kunō from Ranma ½ fell for the title character once she glanced at him for the first time after he saved her from taking a bad fall.
Her brother Tatewaki, likewise, fell for "the Pigtailed Girl" more or less after first confirming her existence. This did not prevent him chasing after Akane Tendō, his first crush, as well, and seems strong enough to keep him from realizing that the "Pigtailed Girl" is Ranma Saotome.
Both of the Kunō siblings have rather... forceful and dramatic personalities.
The anime has Sentaro and Satsuki. They sit and stare at each other for so long when they first meet, that by the time Sentaro finally says something to her, it's the next day and everybody else has fallen asleep. To top it off, the first words out of Sentaro's mouth are a proposal.
It's implied that Ranma himself believes in love at first sight. He once said:
Jack for Lacie, who he spends eight years searching for after they first met.
Juvia Loxar falls in love with Grey Fullbuster at first sight in Fairy Tail. Her feelings are compounded as he's the first person to defeat her and his accidental groping her.
Hinagiku of Hayate the Combat Butler admitted to Ayumu that her love for Hayate was "at first sight". If you reread the relevant chapters, you see that, indeed it was. All the chapters since have proven that the love is not just as "looks-oriented" as most cases would be though. Especially since it took her a long time to realize the feelings, even though they were clear as day to everyone else.
It's also been implied that it might work both ways. He has said that he is attracted to Hinagiku. With Hayate being a Chaste Hero and thicker than a box of bricks, it might be a while before we find out if that's the case.
Subverted in Princess Tutu. Ahiru/Duck falls in love with Mytho the first time she sees him (when she's a duck). She's turned into a girl to help him, but later admits she just liked him because she "thought he was handsome", and then her actual feelings were more by the "platonic admiration" than "romantic love" Then he picks Rue aka Kraehe, the girl he's known for years, as his Princess instead. And she fell in love with him at first sight, too, after he saves her life as a child, evolving into a painfully sincere love that leads her to be a Love Martyr.
Zetsuai1989: Kouji Nanjo falls for Takuto Izumi like this, when they are 10 years old (and he thinks Izumi is a girl). Izumi, however, takes much longer to return his feelings.
When Grandis meets Captain Nemo on the Nautilus, she becomes madly infatuated with the man, igniting a jealous rivalry between her and the overprotective first officer, Electra (who harbors similar feelings for the captain.)
In Wild Rock, Yuuen thinks he's doing too good of a job Disguised in Dragcharming Emba . He later finds out he's not and the biggest thing that gave Yuuen away is simply that Emba's been entranced since the first time they saw each other and knows exactly who (and what gender) he is.
In Battle Athletes Victory, Akari bumps into Kris, who immediately loudly proclaims to have fallen in love with Akari and has no qualms about showing her affection.
It turns out that Keith Goodman from Tiger & Bunny is prone to this. First crush? A high school girl he fell in love with at first sight (who didn't even so much as talk to him). Second love? A woman in the park that he fell in love with at first sight (who turned out to be a malfunctioning android). His "soulmate"? A puppy that he took one look at through the pet store window and, once again, fell in love with (no, not in that way) at first sight.
Its been suggested that Daisuke's love for Risa developed at first sight in DN Angel. Also, in episode 14 there's Mio Hio towards Daisuke.
It's implied in Wandering Son that Saori fell in love with Shuuichi at first sight.
In Big Order Hoshimiya Eiji falls for Kurenai Rin as soon as he sees her first enter class. This changes once he learns that she was sent to kill him.
In Mamotte Shugogetten Kaori Aihara is like this for Tasuke and Tasuke is like this for Shaorin.
Haruhi Suzumiya: One of the stories in the novel involves one of Kyon's old friends who he hasn't talked to in months calling to ask about the cute girl he was walking with one day. Turns out to be Yuki. The friend took one look at this girl, briefly, from a distance, and spent the next few months obsessing over her, to the point of laying out a five-year plan for college and starting his own business to prove himself worthy of her. Turns out he had the ability to perceive Yuki's communication with her boss, the Data Integration Thought Entity, and that's what he saw that gave Yuki an angelic aura in his eyes. Yuki quietly removed this ability, and he (embarrassed) gave up on her. He was just seeing the communication; Yuki explains to Kyon that if he looked too closely, he would have eventually perceived the Entity itself, which would have killed him.
Practically a staple for the Evillious Chronicles—though the most notable examples are actually the product of magic, such as the titular duke of The Lunacy Of Duke Venomania using his powers for instant seduction (or pursuing women out of instant sexual attraction and pretending it's love), and Michaela's many instant suitors in Wiegenlied Of Green from her being a reborn forest spirit.
The ElfQuest concept of Recognition is this trope in spades. "Soul meets soul when eyes meet eyes, stands your lover recognized." At times a male elf and a female elf see each other, immediately recognize each others' soul, and are compelled by a biological imperative to have sex. A life-long romance is not guaranteed (Dewshine and Tyldak), but does tend to follow more often than not (Cutter and Leetah).
When Susan "Sue" Storm was 12 years old, her aunt rented a room to a Teen Genius university student named Reed Richards. She fell for the Hollywood Nerd at first sight, but would only date and marry him when they were older.
This seems to happen quite often to mortals who spend time around the Endless. In Endless Nights, the mortal protagonists of Death and Destruction's stories both end up falling in love with them after spending a short time in their company. Death gets it the most in general, too.
Thugboy fell for Empowered hard when he first laid eyes on her — it even broke him out of his terminal "Whatever." mood.
Victor and Lillie from Runaways. It doesn't work out, though.
In "The Greek Princess and the Young Gardener", after the young gardener attempted to kidnap her, and her father demanded that he get rid of a hill to prove that he was capable of keeping her from danger, the Greek princess hopes that he will succeed in getting rid of the hill.
In "Kate Crackernuts", the prince and Katie fall in love as soon as he recovers his health, and meanwhile, his brother and her sister have fallen in love at sight.
In "Vasilissa the Beautiful", the Tsar falls in love with Vasilissa the Beautiful on sight — having first been intrigued by her weaving and sewing abilities.
The Arabian Nights tale of "Prince Camaralzaman and Princess Badoura"... hoo boy. The Prince and Princess, living at opposite ends of the world, respectively decline arranged marriage and get locked in towers to think it out. A good fairy and evil djinn come to blows over which of the two is the most beautiful mortal alive. They end up sticking both in the Prince's bed and comparing them, but can't decide, so they decide to let the mortals decide. Binding the Princess in magical slumber, they wake the Prince, who exclaims over her beauty ("Are you the woman my father meant for me? I had no idea!"), fails to wake her, and finally goes back to sleep. They do the same thing for the Princess, who is even more enamored of the Prince, so the immortals judge the Prince the most beautiful mortal, return the sleeping Princess to her bed, and leave the story entirely. The Prince and Princess awake the next morning, realize they're not sleeping next to the beauty from the night before, and go storming around asking "Where's that gorgeous dreamboat I fell in love with last night?!" Not only that, but the Princess makes a threat of killing herself if her father doesn't show her the man she loves. These two have never spoken to each other, never seen each other awake, know absolutely nothing of the other except that they're gorgeous. And the Princess is willing to kill herself rather than not have her Prince.
The Prince and Princess are said to look alike, to the point where the Princess can masquerade as the Prince for months (including getting married to another princess! long story). My classmates wondered if it's the girl who looked very butch or the boy who looked very effeminate — as they said, "Would you marry a girl who looked like you?"
They look alike? This could be perfectly rationalized as both of them being siblings without knowing: not having grown up together they would lack the Westermarck Effect that prevents people from hopelessly falling in love with their close relatives. In fact, in real life it's common for siblings who never saw each other during childhood to fall in love at first sight.
In "The Story of the Black Cow", the princess sees a lock of the hero's golden hair and insists she must see its owner to be happy. When he's kidnapped and taken to her, he instantly forgets all else.
Double Subverted in Madame d'Aulnoy's The Princess Mayblossom. The cursed princess glimpses the ambassador for a king, falls madly in love with him, and elopes, only to discover he's a horrible person. When she is rescued, however, the ambassador's king had followed him, and she falls in love with him immediately and lives happily ever after.
DC Nation had Beast Boy and Fauna meeting each other in the middle of a battlefield, stark naked, and in full-on shape-shift mode. While not the most romantic of meetings, it certainly turned out well for them.
Luminosity has this as one of the things that simply happen to vampires and werewolves. This can be interesting if the other party is human, as they aren't affected, but generally they end up being turned—automatically mutual—or getting attached to the sheer devotion, respectively. Half-vampires whom vampires fall for get neither perk.
Many, many Captain America/Iron Man slash fics have Tony falling in love with Steve the moment the Avengers free Cap from deep freeze.
In My Inner Life Jenna sees Link for the first time and "And then I fell in love."
In Rarity's case, she actually invokes this trope. Claiming she knows herself well enough to sedu... er... deduce that Elusive would be "the perfect gentlecolt" to her "fair lady." Turns out she was right as she knew what subtle queues and innuendos to follow. Elusive actually picks up on this and takes their tennis match flirtation Up to Eleven when he finally asks Prince Solaris to what could amount to a marriage proposal!
Weightless have Garrus falls for Shepard right at the moment he sees her. Since the chapter is written from Garrus's POV, we don't know much about Shepard. But later, it reveals that she does falls for him from the beginning, too.
The same thing happens to Zack towards Rosso and Genesis towards Aerith. The author appears fond of this trope.
In The Nyxverse, this is pretty much the case with Twilight Sparkle and Ink Spot.
In Fly A Little Faster teenage Derek pretty much falls for time traveling Stiles at first sight. Since it is from Stiles POV it is not very evident at first, but it is explained in the writer's comments.
Arddun Lleuad has the protagonist end up mysteriously in another world (Equestria), and he falls in love with the moon as soon as he sees it. However, he has actually fallen in love with the princess that controls the moon.
Implied in The Student Prince, where Arthur states he had "never felt like [how he felt upon meeting Merlin] before".
In Icecloud's secrets, the protagonist, within minutes of meeting Ferretclaw, is imagining him playing with her unborn kits like a father would. That very night, she has an Erotic Dream about him. Incidentally, this all happened on the same day her old mate broke up with her.
In Tealove's Steamy Adventure, Tealove falls in love, hard, the instant she sees Big Macintosh. Big Mac doesn't reciprocate, but he comes around by the end of the story.
Films — Animation
Ashitaka from Princess Mononoke; he was ready to die for San the moment they shared eyes. And his words to her when she's about to slit his throat for carrying her out of Iron Town? "You're beautiful." Yup, he was hopeless from the get-go.
Aladdin and Jasmine fall in love at first sight, but by some animating/writing miracle, it comes across as completely natural, and no one is in any doubt that they're perfect for each other.
Sleeping Beauty features a slight variation on the trope in that Prince Phillip appears to fall in Love at First Note when he goes head over heels for Aurora's singing. Plus, when Philip first met (baby) Aurora as a little boy, he felt more disdain than love.
In Tangled, downplayed. They don't really fall in love until their escape from the Kingdom's soldiers — but they do both have a moment of speechless immobility at their first clear look at the other, from which they do not emerge until someone else demands a reaction.
In Frozen, Princess Anna is convinced that she has fallen in love with Prince Hans at first sight; her sister Elsa is incredulous, and immediately rejects the proposal by saying "You can't marry a guy you just met!" When Anna tells Kristoff this, he is convinced she is seriously mistaken. As it turns out, Kristoff and Elsa are absolutely right with Hans turning out to be a despicable villain scheming to seize Elsa's throne by pretending this trope to manipulate Anna. Later, it's averted with Kristoff and Anna, who nevertheless decide to take it slow with their relationship anyway, having learned the lesson.
But the trope is darkly demonstrated in Disney's version of The Hunchback of Notre Dame, where the villain Frollo develops an instant case of lust for the gypsy Esmeralda. His musical number concerning her doesn't say anything about loving her; it just goes on and on about his desire.
Compare Frollo's song, "Hellfire", to Quasimodo's, in which he sings with innocent joy about how this wondrous feeling he's discovered must be like "Heaven's Light". Then again, we're talking about Disney here — they gave Hunchback a (mostly) happy ending.
Phoebus is attracted to Esmeralda and takes an interest in her wit. She doesn't fall for him right away, but it's pretty quick.
Disney's The Sword in the Stone has a one-sided variation done, twice. Both times were two female squirrels that instantly fall smitten with the squirrel-forms of Wart and Merlin. They try to avoid their affections and even try to talk them out of it, stating they aren't real squirrels, but they either don't believe them or don't understand. When they change back, the old lady squirrel is horrified and enraged, but the little red girl squirrel is visible heartbroken.
An American Tail: Tony and Bridget instantly falling in love while she's giving a speech at an anti-cat rally.
WALL•E falls in love with EVE the first time he sees her. Possibly justified in that EVE is the first living thing he's seen in centuries other than cockroaches.
John and Mary, who start considering it upon accidentally touching hands. Though it is the first human physical contact either of them have ever made.
Carl/Ellie from Up: "Y'know, you don't talk very much. I like you!" At the very least it seems to be one-sided from Carl, given he didn't seem able to talk whenever she was around.
In the DTV movie Mickey, Donald, Goofy: The Three Musketeers, this happens with Mickey and Princess Minnie. Not only are they smitten, the world vanishes, they float in purple and pink clouds, random flowers come out of nowhere for him to give to her, romantic music swells, they hold hands and float until Daisy interrupts. It's so over the top it's adorable.
In Hotel Transylvania, this effect is a magical form of attraction called a "zing", and saying that two people "zinged" means that they have succumbed to this trope. Dracula and Mavis's mother Martha zinged, as well as Mavis and Johnny. Dracula finding out that Mavis and Johnny "zinged" convinces him that they are meant to be together, and he spends the remainder of the movie reuniting them.
Films — Live-Action
In Cemetery Manpeople-hating gravekeeper Francesco Dellamorte spies a stunning woman at a funeral, ("The most beautiful living woman I have ever seen! Will I see her again?") a catalyst for an increasingly grisly series of events.
At the end of the movie, Angelica outright admits to Jack that she wanted to tell him that she loved him from the very first moment she saw him. Jack reciprocates. That does not stop him from ditching her.
West Side Story. In the film, complete with the hazy effect around everything that is not the two principal characters, Tony and Maria, looking at each other. But then again, the musical is based on Romeo and Juliet.
In Star Wars, Anakin at nine years old asks a fourteen year-old Padme Amidala if she's an angel, and calls her one of the most beautiful creatures in the universe, even though he should still be afraid of cooties. Ten years later he comes back into her life, courts her, and they marry. They get bonus points for also being star-crossed lovers when he's on the front lines of war. However, their marriage ends up... badly.
Ben and Elaine in The Graduate: one date which gets off to a very rocky start, then they share burgers and life stories in a drive-in restaurant, then some uncomfortable truths are aired, and months later he's still willing to drive up to Berkeley to chase after her. Hardly a day after they have an argument, they're talking about marriage, and their passion seems to go strong for the rest of the movie — not counting the last seven seconds.
Granted Ben and Elaine fall for each other very quickly but its still not at first sight. Especially since its implied in an earlier scene that they knew each other before their date.
In The Terminator, Reese has been in love with Sarah Connor for years just from looking at her photograph. She comes around in a day or two and a Rescue Romance.
In TRON: Legacy, Quorra was more or less ready to die for Sam Flynn the moment she unveiled herself in the Light Runner scene. Justified, since Sam's arrival was the first time she ever experienced romantic sensations for anyone, hence why she doesn't know how to express those feelings for him. Luckily for Quorra, Sam admits similar feelings for her in the Solar Sailer scene.
Big Fish: "They say that when you first see your true love, that time stops, and that's true. What they don't tell you is that when it starts up again, it goes twice as fast to catch up."
Imagine Me And You : Rachel "knew after three seconds" that she was in love with Luce. However, the fact that she was walking down the aisle to marry her high school sweetheart at the time made things a little bit difficult.
The short musical film Boycrazy has a number parodying this. The two men involved do not hook up in the end.
I don't know a thing about you... I don't know a thing about you... I don't know a thing about you... so this must be love!
The first time Miss Piggy lays eyes on Kermit the Frog in The Muppet Movie immediately sends her into a musical dream sequence, complete with slow-motion romp through a meadow of flowers and long
En kärlekshistoria (A Swedish Love Story). Per (fifteen) and Annika (thirteen) are drawn to one another the first time they set eyes on each other, and become a couple after one walk together and a few sentences of conversation.
Les amitiés particulières (This Special Friendship). One look at Alexandre Motier and Georges de Sarre is smitten.
if...., Lindsay Anderson's 1968 schoolboy-rebellion film. Philips and Wallace have apparently never met, but Wallace has presumably seen Philips around and been attracted to him. Philips then falls for Wallace when he sees him perform a gymnastics routine. They start meeting secretly.
Deconstructed in Oldboy. Mido and Oh Dae-su fall in love very shortly after meeting each other, but it's ultimately revealed that they've been hypnotized to do so as part of the villain's plan.
In the short film Un beau jour un coiffeur (One Fine Day a Haidresser), a young man falls in love at first sight with a hairdresser who turns out to be straight. Then the young man falls in love at first sight with a physical training instructor, who seems...not to be straight.
Pseudolous and Gymnasia in A Funny Thing Happened on the Way to the Forum. One look to the Cute Mute, and Pseudolous is already hopelessly in love to the point of risking to screw the plan intended to earn his freedom. Gymnasia herself is shown as clearly impressed and flattered by meeting someone actually able to understand that her frantic pantomimes are an highly complex and organized sign language.
The one-sided version occurs in Dead Poets Society, with Knox being instantly smitten with Chris. Even though the latter has a boyfriend who is more than willing to beat up any competition.
In Far and Away, Shannon tells Joseph this after he dies.
Shannon: I loved you. I loved you from the first time I saw you. Joseph: I often wondered about that.
This happens to Gentaro towards Nadeshiko in Kamen Rider x Kamen Rider Fourze & OOO: Movie Wars Megamax.
Cloud Atlas. Nuclear scientist Isaac Sachs falls in love with Intrepid Reporter Luisa Rey. It's implied this is due to reincarnation; the two characters meet in the far future and fall in love over a longer period of time.
Cirque du Soleil: Worlds Away: Mia and the Aerialist only meet at the beginning once and don't even speak to each other, but spend the entire film looking for each other.
In Looper, Old!Joe was completely head over heels with his wife when he met her the first time. When Young!Joe stumbled onto Sarah's farm, Old!Joe found his wife being replaced with images of Sarah and had to concentrate hard to retain memories of her.
Also counts as Love at First Note; Amberley was posing as a (very talented) cabaret singer at the time.
A humorous version in the latest book of the Wheel of Time, in which Berelain (The Vamp, who seduces people for political advantage) and Galad (an exaggeration of the Knight in Shining Armor) both fall head-over-heels on their first meeting. This leads to many entertaining scenes, especially as both of them are presented earlier as cool-headed and in control.
Harry Potter crushes on Cho the instant he sees her during a Quiddich match in his third year. It doesn't last...
GinnyWeasley's reaction to Harry from the moment she meets him. That one sticks.
Nine-year-old Severus Snape seems completely entranced by little Lily Evans from the moment he lays eyes on her.
In Dan Abnett's Gaunts Ghosts novel The Guns of Tanith, Milo, reflecting on his not present love, considers Caffran and Cridd and their sweet romance, even though neither of them would describe it as love as first sight. (From their actual meetings in Necropolis, they might be wrong not to do so.)
In G. K. Chesterton's Tales of the Long Bow, Owen Hood habitually fishes a certain location in hopes of meeting again a woman he had met only once:
Years before, when he was a very young man, he had sat fishing on that island one evening as the twilight bands turned to dark, and two or three broad bands of silver were all that was left of the sunset behind the darkening trees. The birds were dropping out of the sky and there was no noise except the soft noises of the river. Suddenly, and without a sound, as comes a veritable vision, a girl had come out of the woods opposite. She spoke to him across the stream, asking him he hardly knew what, which he answered he hardly knew how. She was dressed in white and carried a bunch of bluebells loose in her hand; her hair in a straight fringe of gold was low on her forehead; she was pale like ivory, and her pale eyelids had a sort of flutter as of nervous emotion.
Parodied in the Discworld novel Sourcery, where Nijel and Conina first meet: "The world had suddenly separated into two parts — the bit which contained Nijel and Conina, and the bit which contained everything else. The air between them crackled. Probably, in their half, a distant orchestra was playing, bluebirds were tweeting, little pink clouds were barrelling through the sky, and all the other things that happen at times like this."
I loved Dejah Thoris. The touch of my arm upon her naked shoulder had spoken to me in words I would not mistake, and I knew that I had loved her since the first moment that my eyes had met hers that first time in the plaza of the dead city of Korad.
From Skulduggery Pleasant, China Sorrows has the ability to make everyone she meets fall in love with her. Skulduggery says that the effects lessen over time but will never go away completely.
Hell's Gate by David Weber features one group of people with a variety of psychic talents. Voices are the most common power, and are telepathic. Recognition between telepaths is very rare, but happens enough that it is the standard for most great works of Romance and tragety in the world. Two persons who've never met lock eyes and just suddendly are in love. But they don't know each other, and may already be married to other people.
The werewolves in the Twilight series undergoes a process called imprinting, which alludes to animals' instinctive and overpowering attachment to their young. However the effect is complicated by the fact that the werewolf can imprint on any human (in one case, a baby), and it can also happen when he or she is already in love with someone else.
"Baby" being minutes after she's born.
Implied that it had already happened before she was born and that that was the reason he stayed for the entire pregnancy, and that he just mistook it for his feelings for Bella. Which is even squickier.
"Hey, Nessie, remember when I was trying to bang your mom?"
Twilight in general takes this to... rather extreme measures at times. There's a trend in predestination amongst the couples. An example of this would be Alice, who fell in love with Jasper before first sight (she foresaw meeting him and thus went to where they'd meet).
Another variant: Edward falls in Love At First Smell with Bella.
In Mirror Dance, mother and son discuss father and mother's meeting:
"He thought it was love at first sight. I've never bothered explaining to him that it was his compulsions leaping up." "Why not? Or were your compulsions leaping up too?" "No, it took me, oh, four or five more days to come completely unglued. Well, three days, anyway."
Averted in the Darkest Powers series by Chloe and Derek that it's worth mentioning. First of all, they meet in a group home for "troubled" kids, which is a code word for "mentally disturbed" (which is a code word for "has superpowers"). Derek assumes that Chloe is a flightyblondeditz whose only point of interest is the fact that she's a necromancer, and only because he can use her to manipulate his brother, Simon, into finally escaping to safety. As for physical attraction, he doesn't even notice her looks (although she is legitimately cute). On Chloe's end of things, Derek is initially withdrawn, ominous, intimidating, and a Jerk Ass. He has also been viciously mauled by (werewolf) puberty, so his face looks like a "before" picture for acne cream, his hair is constantly greasy, lank, and dull, and the deodorant does nothing — even though he showers twice a day. The first time they're alone together, the interaction goes downhill, until Derek ends up throwing her across the room. It's an accident — actually an accident, not "Why'd you make me hit you, baby?" — but Chloe doesn't know that until a few chapters laternote When she does find out how he could manage to throw her across the room without putting deliberate effort into it, she accepts the explanation. It helps that she weighs maybe a 100 pounds and is only five feet tall, and he's over 220 pounds of pure muscle and roughly six-three or so.. At the end of the trilogy, they end up together after their relationships develops in a completely believable manner, turning out to be the complete opposite of Strangled by the Red String.
As a matter of fact, Talia and Dirk did this too. Dirk was the first Herald that Talia saw!
In The Tale of Genji a man doesn't have to see the girl to fall in love - fortunately as women normally hide behind curtains and screens. Just a glimpse of her perfect calligraphy will do the job nicely. If he does manage to get a peek at her the results will be instantly devastating and probably lead to all kinds of complications.
J. R. R. Tolkien liked this one, both Beren and Aragorn were devastated by their first look at Lúthien and Arwen on The Silmarillion and Lord of the Rings, respectively. Tolkien himself fell for his wife Edith when he was only sixteen, proposing marriage and being accepted the day after he turned twenty one.
Agatha Christie also favored this trope. Many of her short stories involve young couples deciding to marry hours and several adventures after their first meeting. Sometimes justified in-universe, inasmuch as the circumstances of the adventures have shown each half of these partnerships exactly what the other half is made of, and by taking place in a culture noted for relatively brief courtships.
S.L. Viehl likes to play with this trope in various ways.
In The Picture of Dorian Gray, by Oscar Wilde, Basil Hallward falls for Dorian when he sees him at a party, leading him to paint the titular portrait. Then Harry Wotton gets in the way and things go... poorly.
Miguel de Unamuno's novella Mist (original title: Niebla) has the main character, Augusto, fall in love with Eugenia as they pass by each other on the street. Everybody supports their relationship except for Eugenia, who is in a relationship with somebody else.
In The Sword and the Circle, Rosemary Sutcliff's retelling of the first part of the Arthurian legend, eighteen-year-old Arthur falls in love with Guinevere at first sight, though he doesn't realise it initially. Then Lancelot and Guinevere fall in love with each other the moment they accidentally touch hands and look up into each other's eyes.
Stu Redman and Frannie Goldsmith in Stephen King's The Stand...Stu told Frannie it took about three hours, but the text of the scene where they meet indicates it may have been even a bit faster.
In Edgar Rice Burroughs's The Monster Men, Number 13 falls in love with Virginia at once, though he does not fathom it. When he recovers from amnesia, he explains that he had fallen in love at a train station and chased after her across the world.
In Gene Stratton Porter's The Song of the Cardinal, the cardinal had actually met the she-cardinal before, and kissed her, but the circumstances meant he had not noticed her much. But when she flies to his tree, he is struck down, his usual Pride humbled, and he sets out to woo her.
instantly this shy little creature, slipping along near earth, taking a surreptitious peep at him, made him feel a very small bird, and he certainly never before had felt small.
My natural sensibility had already been greatly affected by the sufferings of the unfortunate stranger and no sooner did I first behold him, than I felt that on him the happiness or Misery of my future Life must depend.
Discussed in Golden, a retelling of "Rapunzel": Rue is skeptical that the prince could truly love her right after seeing her for the first time, especially since he had been talking before to the real Rapunzel (who kept out of his sight because of her baldness), but Rapunzel tells her that while true love does take time to develop, there's always that one moment when the seed for it is planted, whether it's a glimpse of a beautiful woman in a tower or a prince ready to sweep you off your feet, and sometimes you just have to take a leap of faith to let it grow and blossom.
Played painfully straight in Zel, another retelling of Rapunzel, however: Prince Konrad's five-minute encounter with Zel apparently had such a powerful impact on him that he turns down multiple arranged marriages and goes on a two-year quest to find this peasant girl he once gave a goose egg to.
In Patricia A. McKillip's "The Kelpie", Ned is embarrassed to do it, but admits to Emma at their first meeting that he's never felt about anyone as about her, and she admits the same. They discuss getting to know each other better.
In the Chivalric RomanceSir Degrevant, while Degrevant is fighting an neighboring lord, he catches a glimpse of his daughter Melidor, and falls instantly in love.
The Grass Is Singing by Doris Lessing has an example that is such a heavy deconstruction it might not even count as that any more so much as someone just being Wrong Genre Savvy. Dick Turner sees a glimpse of a beautiful woman in a movie theatre. Though he's introduced to some rather unremarkable woman whom he gives a lift home from the theatre, all he can think about is this one he saw. Later, he returns to the town and asks to be introduced to her. It turns out it's the same woman he took home, Mary, who just doesn't look at all as interesting unless seen in and from just that light and angle. They marry soon anyway because both just feel they need to find someone. It doesn't work out well, not even before the part where one of them winds up dead and the other insane.
In John C. Wright's The Hermetic Millenia, the Nymphs are capable of inducing this biochemically. Oenoe had agreed to it, to transfer her hopeless love, and accidentally transfered it to one knight guarding the Tombs.
In Just One Day by Gayle Forman, Allyson falls in love with Willem, a Dutch boy she meets while taking a tour of Europe. She runs off with him to Paris and loses her virginity to him, and wakes up the next day with him gone. The rest of the book is about her journey to find him again.
Anna and Vronsky in Anna Karenina are a deconstruction of the trope. It's Love at First Sight, and Anna gives up her entire life just to be with him — but then they have to deal with what happens when that initual fascination isn't enough to sustain a relationship.
In Andre Norton's Ice Crown, downplayed. Roane merely finds the first look at Nelis Imfray rather interesting, though he's not so good looking as her cousin.
The Apprentice Rogue: This is what Artamos feels when he sees Leona. She admits to the same at the end, just before they have sex.
In Victoria Forester's The Girl Who Could Fly, Boris falls in love with Lily on arrival. Fortunately, this gives him a motivation to help all those strange kids with their dangerous plan on his first day at the school.
In Stephanie Burgis's A Most Improper Magick, Elissa is much taken with Mr. Collingwood at their first meeting, but, as she explains to Kat, he's Unable To Support A Wife, let alone provide the money her family needs, so she must not even consider him.
The Hunger Games: Peeta's been in love with Katniss since he was five. His father was similarly in love with Katniss's mother, who chose a miner instead, because when he'd sing, the birds would listen. When Katniss sang in front of their entire class on the first day of school, the birds stopped to listen — and at that moment, Peeta was a goner. There wasn't going to be anyone else for him after that. And it sticks. The last chapter and the epilogue of Mockingjay reveal that the two have fallen in love, married, and had children together.
Hunger Games is an interesting example because in the third book Peeta actually falls out of love with Katniss after being subjected to brainwashing designed to make him fear and hate her. He eventually falls back in love with her but this time he's acknowledged her bad qualities and genuinely grows to love her for who she is rather than love the idealized version of her like he did before.
August sees a picture of a woman in a locket that he finds and suddenly falls in love with her, and then consequently berates himself for losing his mind.
Aiden and Lilac fall mutually in love within moments of meeting each other but both have rather strong emotional baggage with regards to relationships and the two are overwhelmed by how their emotions escalated so quickly for one another, and can't bring themselves to fully acknowledge their feelings.
In the Honor Harrington short story "Beauty and the Beast", Honor's parents, Alfred and Allison, had a mutual case of this, helped in part by Alfred's low-level telepathy, causing the two to form a Treecat-like bond. Given that this is the Honorverse, however, they spend quite a bit of time avoiding each other and lambasting themselves for thinking that it could actually be real until Allison gets kidnapped.
In Katherine Paterson's Of Nightingales Who Weep, Takiko falls in love with Hideo when she first meets him at the temple, even though she realizes that he is an enemy spy; she struggles to do her duty when it endangers him. It ends in Old Flame Fizzle.
In Eric Flint's 1632 series, Mike Stearns falls for Rebecca Abrabanel in the space of about two seconds, and Jeff Higgins falls for Gretchen Richter even faster. Both of those marriages stick.
A racial trait of the elves in The Riftwar Cycle is the Recognition: most elves have an instinctive recognition of who their mate will be.
Dharma and Greg meet and get married in the pilot episode. They first saw each other on a subway train when they were children. About twenty years go by, and they see each other again on the same train and get married later that day. The show is very heavy on the Idealism side of the scale. Though to be fair, their relationship does have issues. (They start fighting less than a day into their marriage!)
And they did a cameo as the same characters on Two and A Half Men - still together but he wants to kill himself because he can't stand her anymore.
Battlestar Galactica: Lee Adama and Kara Thrace. Which is trickier than it seems when you consider the fact that she's his younger brother's girlfriend at the time.
Naomi: I loved you from the first time I saw you. I think I was twelve.
iCarly: Carly confirmed during "iSaved Your Life" that Freddie had been in love with Carly since he first met her.
A.N.T. Farm: Fletcher had been this for Chyna when she came to the A.N.T. program in the 1st episode of the show, "TransplANTed", to the point that he even said "You're beautiful."
Lancelot for Guinevere in Merlin. She measures him for a suit of armour and it's clear that he's completely smitten. When they meet again in a life-or-death situation in season 2, he's more than willing to die for her.
The robothead 790 was subjected to the Love-Slave mind treatment in LEXX, and the first person it laid eyes on was none other than Zev whom he immediately fell in love with. Later in Season 3, 790 had an accident, and it immediately fell in love with Kai who subsequently fixed it.
Subverted in Friends with Monica and Chandler. Monica had a Crush At First Sight...then Chandler called her fat. Later Chandler fell into Lust At Second Sight...then she cut off his toe. It took them almost ten years of being best friends to finally fall in love properly! They ended up Happily Married. Sheesh.
There are indications of this with Grissom and Sara on CSI: Crime Scene Investigation from the stories told about their college lecture meeting, although relationship did not ensure for years afterward.
On The Vicar of Dibley, Harry says when proposing to Geraldine that he loved her from the second he laid eyes on her. The feeling appears to have been entirely mutual, despite the fact that right up until he opened the door Geraldine was ranting about 'townie tossers' moving into Dibley and was absolutely determined to hate him.
In Zoey101, Chase reveals he fell in love with Zoey the moment he saw her when she first came to P.C.A. while he was riding his bike and crashed into the flag pole since he was distracted by her. He even states, "I was in love with Zoey before I hit the ground."
Doctor Who: It can be argued that the Doctor fell in love with the TARDIS as soon as he laid his eyes on her.
"And you said—" "I said you were the most beautiful thing I had ever seen."
In Once Upon a Time, Prince Charming catches up to the person that has just robbed him and his fiancée... and he's struck as soon as he lays his eyes on Snow White's face.
In Series/Frasier, Niles Crane is clearly smitten with Daphne Moon practically from the moment he lays eyes on her.
In Series/Babylon5, John Sheridan is visibly, instantly smitten with Minbari ambassador Delenn from the instant he sees her. By the end of the fourth season, they're married.
In Frankie Howerd Rather You Than Me, the moment when Dennis and Frankie first catch sight of each other is overplayed with Frankie telling a joke about a young gamekeeper who sees a beautiful girl in the woods.
Castle: Castle insists that this was the case for Beckett. She insists it was opposite: "I couldn't stand you!" Note that is conversation takes place after their Relationship Upgrade.
Pops up in a few Beatles songs, naturally: "I've Just Seen a Face" used to be the page quote. In "With a Little Help From My Friends", it's discussed via Call and Response.
"Would you believe in a love at first sight?"
"Yes, I'm certain that it happens all the time. . . "
The song "Loving You" by, not so wide known artist, Pauline:
I've been dreaming about you
Every night and day
From the first time I saw you
I got swept away
Myths & Religion
Greek mythology has its share of Love At First Sight, usually caused directly by some god or goddess.
Eros, after a quarrel with Apollo, got back at him by shooting him with an arrow that made him fall in love with Daphne at first sight, after he shot Daphne with an arrow that made her (in simplest terms) hate at first sight.
Aphrodite, Eros' mother, because she was jealous of the beautiful Psyche, asked Eros to shoot her with an arrow so that she would fall in love with someone repulsive at first sight, but Eros ended up falling in love at first sight with Psyche.
Narcissus was so beautiful that every woman who looked upon his face fell instantly in love with him, but he would always spurn such people and break their hearts. He was cursed to fall in love with his own reflection after spurning several nymphs this way.
And in other versions, falling in love with his own reflection was punishment for spurning probably much older * male* suitors. Values Dissonance? Perhaps. Creepy? Just a tad.
Although in Greek culture of the time young men were supposed to have older male suitors, as well as continue to be attracted to women, so both versions technically work. (Male suitors of the same age? Now that was just weird.)
On a different point of view since Hades primary methods of romance seems to be kidnapping, lavishing her with gifts, tricking her into eating those seeds and waiting several months for Stockholm Syndrome to ensue, you could bet that seduction isn't his forté.
On some versions. In another (which may be the closest to the original and untouched myth), Persephone willingly came to Hades, spoke to him and they reached an agreement — he wanted a consort, she wanted to get away from her overprotective mom, they FAKED her supposed kidnapping and she ate the pomegranate seeds willingly to tell her motherthat she wanted to stay in the Underworld.
Well, he cheated once or twice... in three-thousand years of marriage. That's leagues above a lot of people, let alone Zeus or Poseidon.
"I pray, sir, tell me, is it possible That love should of a sudden take such hold?"
In Les Misérables, Marius and Cosette fall in love when Marius, chasing after Eponine, alternately walks into Cosette or knocks her basket off her arm. "I didn't see you there, forgive me," might be the best pickup line ever because suddenly both of them are in love with each other and manage to sing several songs about it before discovering what the other's name is.
Played sort-of straight in Sweeney Todd: The Demon Barber of Fleet Street between Johanna and Anthony, the latter of whom expresses his feelings repeatedly in a supposedly romantic song that sounds a lot like something John Hinckley Jr. would sing to Jodie Foster. This isStephen Sondheim, so the ridiculousness is also parodied in "Kiss Me", a song about the two running away from Judge Turpin before he forces Johanna into marriage. This little ditty features such lines as "I knew I'd be with you one day, even not knowing who you were" with Johanna's expression becoming momentarily confused as to how precisely this guy is the love of her life when she's only just met him, a fact underlined by the later line that clearly states (even though they're eloping) that she doesn't even know his name.
Under the circumstances, Johanna is being fairly practical. Anthony offers her a way out of marrying Judge Turpin, and she accepts it. After all, she doesn't have a lot of options. Besides, Anthony is quite possibly the first young man she's ever met. Naturally she's interested in him. Her desperation, loneliness, and curiosity might not equal love; she might be dressing up her feelings to make the best of a less-than-ideal situation.
The Judge Turpin falls in lust at first sight for Lucy.
Although it's a staple of the original fairytale, it's perhaps even more pronounced in the Rodgers and Hammerstein musical of Cinderella - in the 1957 version, Jon Cypher looks like he's just been hit with a very large truck, and Paolo Montalban in the '97 edition looks like the floor has just dropped out from underneath him. Somehow, both of them actually manage to make it believable, too. The 1960's version averts this though.
Roxane: Well, I love him. That is all Oh—and I never saw him anywhere except the Comédie. Cyrano: You have never spoken? Roxane: Only our eyes. Cyrano: Why, then, how do you know? Roxane: ... I know. ... Cyrano: So soon! So soon we lose our hearts! But, my dear child ... You, who love only words, wit, the grand manner — why, for all you know, the man may be a savage, or a fool. Roxane: His curls are like a hero from D'Urfé. Cyrano: His mind may be as curly as his hair. Roxane: Not with such eyes. I read his soul in them. Cyrano: Yes, all our souls are written in our eyes!
Me and My Dick has a subversion. Dick and Miss Cooter fall in love at first touch when Joey and Sally hug too close.
Show Boat has Ravenal and Magnolia meeting and singing a love song during the first scene, though she's shy about it and he conveniently pretends that he's only acting. Her timely but winsome interruption of his solo number, "Where's the Mate for Me?", promises quite enough.
In Valkyrie Profile, Lezard Valeth fell for Lenneth Valkyrie upon first sight. Which resulted in him becoming a creepy, obsessive Stalker with a Crush. Oddly, you never actually get to see just where and how he saw her.
The female variant can start shamelessly flirting with Carth straightaway, too. He kinda likes the attention...well, until his paranoia kicks in. The Gay Option can also proceed like this, with lines like "Juhani, you are a beautiful woman with so much talent." Courtnay Taylor's voice acting wrecks any attempt to keep it at subtext.
In Odin Sphere Oswald the emotionless Shadow Knight fell in Love at First Sight with Odin's daughter Gwendolyn when he saw her wearing her late mother's dress while on a spying mission in Odin's realm. A feather she left behind reminded him of the prophecy of the dragon Hindel: "Seek the bird... that shall be your destiny."
Though Neeshka admits later on that the player was the first person to be nice to her. It's understandable that she'd latch on to him.
Possibly occurs with the player and Silk Fox/Sun Lianin Jade Empire. Their first conversation after she joins the party can end with her commenting that their flirting has gone much further than she originally intended and breaking off abruptly.
Albion: Not quite at first sight, but still instant. When Mellthas and Sira discover their ability to communicate with each other telepathically very shortly after first meeting, they see the depths of each other's souls or something and fall in love immediately.
In Left 4 Dead 2'sThe Passing, Ellis instantly falls in love with Zoey the second he sees her. Even saying they will skip the dating part and get right to the marriage. Well considering it is the Zombie Apocalypse, there probably wasn't time to date anyway.
In the Assassin's Creed series, Altaïr does so with Maria, a Christian woman who pretended to be his real target, Robert de Sable. Despite killing dozens of guards just to get to the fake Sable, Altaïr immediately and instantly spares Maria's life, leading, as we learn in the sequel, to Ezio Auditore da Firenze and Desmond Miles, your other two protagonists in the series.
Seeing as King's Quest is based on fairy tales, this trope gets thrown around liberally. In the Back Story, this happened for King Edward the Benevolent (Graham's predecessor), and it turned out badly (she was a witch scheming to get the magic chest of gold). Graham gets hit with this himself when he sees Valanice imprisoned in Kolyma, and his son gets a dose when he meetsPrincess Cassima. The exception to the rule, like usual, seems to be Rosella. While Edgar got a case of this upon seeing her in King's Quest IV, it took her a while to share the opinion.
Knights of the Old Republic II: In the cut content, given high enough Relationship Values, after loses his fight against Darth Sion, Atton tells the female Exile in his dying moments that he loved her from the moment he met her and tried to play it off as a joke.
Entirely possible in The Sims 2 if you have the Seasons expansion and earn the Wishing Well reward. If a sim successfully wishes for "true love", another sim (usually a Townie or another playable) with the most compatible traits and personality emerges from the well and greets them for a kiss, which automatically boosts their relationship to 70/70 and raises the "in love" flags.
Much to Taiga's dismay in Duel Savior Destiny, Nanashi falls in love with him at first sight due to him being a warm, open person. Why is the sex maniac dismayed at having a cute girl in love with him? Well, it probably has to do with her being undead enough that her limbs sort of fall off at a strong impact.
Invoked and defied in Chains Of Satinav. When Geron sees Nuri for the first time, he's speechless. Nuri promptly asks if he's in love, and Geron immediately denies it. They're the Official Couple, naturally.
A rather viable interpretation of the Chrom x Olivia prospect pairing in Fire Emblem Awakening. Specially since they can get married right after the same chapter she appears.
The Feel The Magic series is something of a celebration of this trope, as they both involve your nameless protagonist falling head over heels for a girl and subsequently doing everything he can to win her heart.
First, Tsukihime, where Arcueid admits that she fell in love with Shiki at first being horribly butchered, something he reciprocated and spent 90% of the story denying to himself. Arcueid acts rather annoyed if Shiki goes for the other girls in their routes. Shiki counts much more than Arcuied does. She was more fascinated with him at first, rather than in love, and she was an Emotionless Girl before Shiki "broke" her. Shiki, on the hand, lusted for her, to the point of insanity, even if it largely due to his bloodline. He even admits that she was easily the most beautiful girl he's ever seen or will probably ever see.
There was also Roa for Arcueid hundreds of years ago. Didn't end well.
Second, in Fate/stay night, where Shirou falls in love with Saber upon first seeing and doesn't actually realize it for two weeks. The other two routes get around this by not letting Saber get enough contact with Shirou for them to really hit it off. Each route is... rather... different as to how it goes about it.
In Rin's route, Saber gets captured early on and then has an important argument with Archer, who uses his future Shirou credentials to make her reconsider her own motivations, a process which took past Shirou a route and many arguments to complete. She does not spend enough time with Shirou for the remainder of the route for them to hit it off, but the finale then has either her letting Rin have him or deciding to share. Saber, however, does not realize why Rin's so happy to have her stick around.
It's rather more tragic in Sakura's route, where the love at first sight is completely destroyed. The method? Kill Saber early in the route. Then have her come back. Evil. Then have Shirou mercy kill her, and get so torn up doing it that he deliberately kills every memory he has of her, promising himself that he will forget her and move on to save Sakura and stay with her. Much like everything in the last route, a bit... sad, especially since Shirou never understood what he felt towards Saber, but continued anyway.
Sakura herself claims to have fallen for Shirou from when she first saw him trying to overcome a jump that was completely impossible for him for hours on end. Supposedly, the same could be said for Rin.
Esperia in Eien no Aselia fell in love with Yuuto at first sight, however, she wasn't sure what kind initially. She also has a lot of difficult actually opening up to people. In Kyouko's route, Yuuto becomes an Eternal without her, so she forgets him. When he comes back, she falls in love at first sight and is extremely confused and upset. When she becomes an Eternal as well to follow him, her newly ex boyfriend does the same. Minus following her, because he probably can't.
Doki of There she is!! falls head over heels, crazy in love with Nabi the first time she sees him. Nabi...well he comes around eventually.
In Lucky Day Forever, Prole 514 falls in love Sasiadka upon seeing her argue with her abusive boyfriend.
The Law of Purple: Red falls for Rose on first sight. Much of the attraction is that she's thrashing a purse-snatcher at the time, as seen here.
Homestuck: Trolls, due to Bizarre Alien Reproduction, have a form of romance which is essentially hateful archnemesishood. The first time Karkat sees John, he is instantly struck by total, all-consuming, overwhelming hate, complete with spade-shaped Wingding Eyes.
Of all the people, this happens to Jack freaking Noir after encountering Peregrine Mendicant wearing the White Queen's ring.
Subverted in Dresden Codak. Kimiko sees a handsome guy with an FM-2030 book and instantly turns into a tongue-tied twit, fantasising about either an idyllic relationship (on an airship!) or a UST-laden scholarly rivalry. See here. Unfortunately for her, he turns out to be kind of a moron.
L's Empire has a species (Kayoss) that falls in love this way, mainly due to their Magic Genetics. This does have a side effect (referred to as Love Struck) which involves light headedness, drooling from the eyes, and passing out.
In El Goonish Shive, this appears to be what happens between Tedd and Grace. However, much later, Tedd admits that it started out as simple attraction, since he was the first male her age she wasn't related to, and she was a hot girl in his house. It definitely evolved into love relatively quickly, though.
He grinned, and everything about him was perfect, and I fell in love instantly.
Considering that it took an entire year for Carlos to show any sign of reciprocating, one has to imagine he was freaked out by this local-celebrity radio host (who might not even be human) immediately announcing that he's in love with him to the entire town.
The entire town feels the same way to some degree, everyone agreeing about his perfect, perfect hair (driving out Tellie the barber for daring to cut it) and not giving him the standard Night Vale welcome of pointing fingers and screaming INTERLOPER!!!
In The Raccoons, Bert instantly falls for Lisa the instant he sees her. However, when he makes his big play professing his love, Lisa, caught off guard of a new friend going way too fast, unsuccessfully tries to gently cool his romantic aspiration for someone he just met. However, when she returns home, troubled at upsetting Bert, writes an affectionate letter later which lifts his spirits with the implied promise of a relationship that can develop in its own time.
Fairly Oddparents: Vicky and Ricky fell in love pretty quickly, but then again, Timmy wished for the perfect man for Vicky.
Plus the relationship fell apart by the end of the episode, with a definite implication that he never loved her that much anyway. They are teenagers, after all.
It's implied that Ron's feelings for Kim stem back to their childhood, possibly when he first met her.
Code Lyoko: Heavily implied with William, who shows a keen interest in Yumi from the first day he knew her, and later claims that he's always been in love with her.
Sissi: Have you been crazy about Yumi for a long time? William: Forever. Sissi: You've only been here for a couple of months! William: Don't you believe in destiny with a capital D? Two people who have never met, but are made for each other?
The first time Helga truly meets Arnold at the age of three outside the Pre-K as he holds an umbrella over her head on Hey Arnold!. Justified, as she puts all of her emotions and neglective parent's behavior into this one act of kindness. Word of God, however, states that they're meant to be.
In "Arnold Visits Arnie" during Arnold's Nightmare Sequence Lulu falls in love with Arnold at first sight and so does Hilda with Arnie.
My Life as a Teenage Robot: One-shot villain Little Acorn in the episode "Puppet Bride", who falls in love with Jenny at first sight (he sees hearts and sparkles around her upon seeing her) and tries to force her to become his bride.
Pepe Le Pew often falls in love at first sight with another animal so long as they have a white stripe down their back, most often towards Penelope Pussycat.
And Fifi La Fume of Tiny Toon Adventures often did this to animals of the male variety, most notably to Furrball in the episode "Aroma Amore". Furrball himself seems to experience this upon meeting Fifi, but completely loses interest upon seeing her skunk stripe and picking up her scent.
KaBlam!: Henry for Dawn, a one-shot character from the episode "A Nut In Every Bite". Dawn is the granddaughter of Mr. Stockdale, who comes from Switzerland to visit the show. Henry falls for her almost immediately (much to June's dismay), but she doesn't quite share the love. However, he does manage to charm her... by hurting himself. At the end of the episode, Dawn goes back to Switzerland, but by this point Henry is actually relieved (he's hurt himself so much he's covered in casts and bandages, and bound to a wheelchair).
Played with and blown to smithereens in Invader Zim with the advent of Tak (the not-so-hideous-new-girl), who manages to both endear herself to Dib and (accidentally) convince Zim she's in love with him. Cue Falling In Love Montage with Zim courting Tak, only to be violently rejected. Turns out, she's a much-more-skilled Irken who's vowed revenge on Zim (and completely hates him). Naturally, she and Dib can't be friends either.
Although it's presented in a low-key way, it's pretty clear in Paperman that the man and the woman are smitten within seconds of seeing each other. The ending sees them happily getting to know each other in a cafe.
In Winx Club, two villains, Icy and Tritannus, meet each other in the prison of Andros. The two are instantly enamored with each other. Icy likes how Tritannus tried to assassinate his brother in order to become crown prince. Tritannus feels that Icy is the only one who gets him. When they break out, the two decide to take over the Magic Dimension together and become emperor and empress.
One example from each generation of campers in Total Drama: Gwen and Trent in season 1 and Zoey and Mike (especially from Mike's side) in season 4.
Research has shown that this phenomenon is actually a memory trick, in which emotions of the present get inserted into the memories of the past.
Mark Twain supposedly said that he saw a picture of his future wife, Olivia, and fell in love at first sight.
Thomas Hardy claimed to have, on seeing his future partner for the first time, realized instantly that he would marry her (not necessarily the same thing). Much like his novels, the two did not have a happily ever after.
The same is said of Carl Jung.
Steve "Crocodile Hunter" Irwin and his widow, Terri, have both said that they fell in love at first sight. Steve was about to feed a crocodile at the time, and he was so spellbound by Terri that the crocodile nearly grabbed him. Ironically, Terri has also said that she had never believed in love at first sight until then - and that she knew three days after she met him that "destiny had taken hold."
Shown to have some basis in science — the first few minutes of a relationship have shown to be predictive of the relationship's future success, more so than what two people have in common or whether they like each other. DAMN.
Makes sense since it's human nature to always rely on first impressions even when they get contradicted later.
Joan "The Mad" of Castile and Aragon and Philip "The Handsome" of Burgundy turned out to be this, resulting in a Perfectly Arranged Marriage. It turned out badly.
John Barrowman of Doctor Who and Torchwood fame flat-out states in his memoir Anything Goes that he took one look at Scott Gill and knew he was the one. (Although he doesn't deny that at least some of the initial attraction was lust, he also calls what he felt a "prophetic jolt.")
Sir Michael Caine saw Shakira Baksh in an advert for coffee, thought she was the most beautiful woman he'd ever seen, and, believing her to be in Brazil, expressed an intention to go there and find her. He was later put in touch with her by a friend; they married in 1973 and have been together ever since.
Second sight, technically — Johnny Depp and Vanessa Paradis met briefly, and then were reunited at a party several years later. The way he tells it, he saw her across the room in a beautiful backless dress and then she turned and came over to talk to him, and that was it. "I'm in trouble," as he put it. D'awwww.
Broadway legend Patti LuPone says of meeting future husband Matt Johnston that she took one look at him and "said no in my head and yes in my heart." She was playing Lady Bird Johnson, he was an assistant cameraman. They're still happily married.
...Which leads to LBJ himself, who asked Lady Bird for a date within minutes of meeting her, and asked her to marry him at the end of it. She turned him down. He wooed her assidiously for ten weeks, whereupon she agreed, though she insisted on marrying the next day, not that one. Forty years later, when he died, they were still Happily Married.
Richard Nixon claimed that when he first met his wife Pat, it was love at first sight. He even proposed on the first date. She politely declined, but Tricky Dick didn't let up, and they eventually got married three years later.
According to how the Lees tell it, when Stan Lee first laid eyes on Joan (who at the time was married to someone else) he told his friend standing next to him: "I'm going to marry that woman." A few weeks later, he did.
Acclaimed British screenwriter Heidi Thomas, responsible for, among others, Ballet Shoes, Cranford, and the massively popular Call the Midwife, met her husband Stephen McGann when he starred in one of her early plays at the Liverpool Playhouse, and she admits that it was love at first sight for both of them. Unfortunately, they were both with other people. Two years later, when they were both finally single, they started dating. Four weeks after that, McGann said, "Let's just cut to the chase," and asked her to marry him. They've been happily married for over twenty-five years.
Tommy Lee of Mötley Crüe met Pamela Anderson at a party in February 1995, and he fell in love with her pretty much as soon as they met. Four days later, they were married.
King Frederick William III of Prussia, then still the crown prince, first met his future wife, Princess Luise of Mecklenburg-Strelitz (and her younger sister Friederike) when his father introduced him to them in March 1793. Years later the king said to one of his few confidants that it immediately it was like a line from Friedrich Schiller's play Die Braut von Messina ("The Bride of Messina"): "And suddenly I felt it become clear in me: She's the one, or no one else on Earth." (Und klar auf einmal fühlt' ich's in mir werden: Die ist es, oder keine sonst auf Erden.).