A GenderBender trope, where someone who would have made a good match if not for gender suddenly ''is'' a good match, and some version of a RomanceArc (and in the more {{egregious}} cases, the relationship) begins immediately. Often, there hadn't previously been one iota of serious thought about a romantic relationship between the two people prior to the gender shift.

When--as is sometimes the case--this involves the gender-switched person [[TheMindIsThePlaythingOfTheBody changing their sexual preferences]], many people find this plot extremely {{squick}}y.

There are legions of [[YaoiFangirl amateur]] [[YuriFan stories]] with some version of this plot in appropriate corners of the Internet, and a decent portion of genderbending FanFic will use it as well.

For obvious reasons, depends on the presence of the FirstLawOfGenderBending and the absence of EveryoneIsBi. May involve a IfItsYouItsOkay rationalization. The opposite of UnsettlingGenderReveal.

Contrast SettledForGay, in which partnership happens without a change in orientation, and IncompatibleOrientation.

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!!Examples:

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[[folder: Anime and Manga ]]

* ''Manga/KashimashiGirlMeetsGirl''. Surprisingly, it's a ''[[SchoolgirlLesbians girl]]'' that suddenly pays attention to the [[GenderBender guy-turned-girl]], as does the guy-now-girl's best male friend.
* Subverted in ''Manga/TheDayOfRevolution'' as the very idea of a romantic relationship with ''any'' of her former TrueCompanions has the gender-bent protagonist thoroughly squicked. Doesn't seem to discourage the boys, though. Then again, they [[EvenTheGuysWantHim weren't all that shy]] even when she was a guy.
* ''Manga/YourAndMySecret'': After Uehara and Momoi switch bodies, Momoi almost immediately starts dating her best friend Shiina, who doesn't know about the switch, and Sengbongi[[spoiler:, who figures it out but doesn't mind,]] makes several romantic/sexual overtures towards Uehara. It's an interesting case, since while the body switching ''did'' facilitate both relationships, it's implied that there was existing attraction pre-body switch.
* Inverted in ''LightNovel/{{Kampfer}}'': Kaede doesn't seem to be interested in male [[DoggedNiceGuy Natsuru]]. Suddenly Natsuru [[GenderBender turns into a girl]], and at first sight Kaede [[SchoolgirlLesbians falls in love with]] "her." [[spoiler: It gets creepy when we find out Kaede's a PsychoLesbian who DoesNotLikeMen, and that she turned Natsuru into a girl for this very reason; this of course arguably makes the trope played straight.]]
* Not surprisingly there's a hentai manga about this. A male student finds himself [[BodySurf body hopping]] into females at certain points in time, and he uses every occasion to sleep with a local JerkJock Cassanova. Though as soon as he's left the girl's body ([[NoEndorHolocaust Paying no attention to the girl who just had been taken over as she's usually in a daze of orgasmic pleasure]]) it turns into HoYay as he pleads his love for the jock.
* Subverted in ''SekainohateDeAimashou'' when a HumanAlien prince slips an OrdinaryHighSchoolStudent a GenderBender potion only to get IncompatibleOrientation instead.
* ''Manga/{{Sekirei}}'' has it's own way with this trope. [[spoiler: Homura]] has an unstable gender, but mentally identifies himself as male. At the start of the story he was physically male, and had been trying to find an Ashikabi who was female. However, as time went on his body began reacting to main character Minato, who is a heterosexual male. As a result, [[spoiler:Homura]] began turning into a woman. It's not clear if the transformation was complete by the time he was finally "winged", but the character now has breasts as well as more feminine features, and is pretty annoyed and uncomfortable with the whole situation. Poor, guy/girl.
* Played with but ultimately subverted in ''Manga/NozomuNozomi'': ''his'' budding romantic interest in best friend Yasu may have started Nozomu down the road to womanhood after his mysterious GenderBender, but it's ''her'' outrage at Yasu's [[LovableSexManiac horndog lewdness]] that convinces Nozomu she's truly become a girl.

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[[folder: Comic Books ]]

* ''ComicBook/{{Runaways}}'', with Xavin and Karolina. Karolina is gay and [[ArrangedMarriage engaged to Xavin]], who appears in a youthful male image that he believed would please her. Being a Skrull, for whom changing shape and sex is as difficult and important as changing the color of ones hair, Xavin is not bothered by this, and happily assumes a female form to make Karolina more comfortable. Some drama [[CanonDisContinuity that might or might not have happened later]] revolved around confusion over Xavin's "true" sex, and Karolina's assertion that Xavin is ''really'' a woman, despite the fact that even Xavin points out that he/she (Even the characters become confused over the proper pronouns) is not only one or the other.
** The issue becomes significantly more stable, however, when Xavin unconsciously reverts to a 'default' female form during an argument.
* ''Comicbook/TheAvengers'': In Earth-3490, the Civil War created by the Superhuman Registration Act is averted. Why? Because Captain America and Iron Woman [[ThePowerOfLove get]] ''[[ThePowerOfLove married]]''. Interestingly, they both get married in costume, which causes a [[DoubleTake double take]] upon turning the page because Iron Woman's gender is [[GettingCrapPastTheRadar surprisingly ambiguous]] [[GetBackInTheCloset if you ignore the veil]]. And instead of the stock 'standing together at the altar' image, they're making out in front of the church.
** Of course, soon after that came out, it was put on The Internet...and Tony's beard got photoshopped onto 'Toni''s face, with varying levels of looking actually beard-like.

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[[folder: Film ]]

* ''SomeLikeItHot''. "Nobody's perfect."
* In the end of ''Film/LaPielQueHabito'', [[spoiler:Vincente has become Vera, and may or may not have a shot with Cristina now]].

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[[folder: Literature ]]

* Creator/{{Ovid}}'s ''Literature/{{Metamorphoses}}'' has the rather touching story of [[{{Bifauxnen}} Iphis]] and [[IfItsYouItsOkay Ianthe]], which involves crossdressing, [[PerfectlyArrangedMarriage arranged marriages of the enjoyable variety]], and a [[DeusExMachina magical last minute genderswitch]] that saves the day, making this trope OlderThanFeudalism.
* Played with in ''Literature/OrlandoABiography'' by Victoria Woolf. The title character is courted by a man posing as a woman. Said man has SingleTargetSexuality, and simply quits posing after Orlando's GenderBender. Unfortunately for him, Orlando finds him [[AbhorrentAdmirer irritating either way]] (and later falls in love with a {{Bishonen}}.)
* In Albanian folktale "[[http://www.albanianliterature.net/oral_lit1/OL1-07.html The Girl who Became a Boy]]", the eponymous [[SweetPollyOliver crossdressing girl]] impresses a king and is married to his daughter. The princess cannot be satisfied by her new husband, and seeks impossible tasks to get rid of "him". In the last of these, the husband is [[CursedWithAwesome cursed with]] a GenderBender... and is finally able to satisfy the needy princess. They live happily ever after.

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[[folder: Live Action TV ]]

* ''Victor/Victoria'' and the BBC ''Casanova'' series. In both cases, a guy is prepared to have a relationship with a man, but then luckily finds out they are a woman.
* Oddly enough, Quark gets caught up in two distinct instances of this trope on ''Series/StarTrekDeepSpaceNine'':
** Quark's brilliant new assistant has fallen in love with him, greatly distressing Quark who is not interested in males but values the subordinate's insights and abilities. Unfortunately, the reveal that this Ferengi is [[SweetPollyOliver actually a female posing as a male]] in order to have a chance to earn profit does not come as any real relief to Quark because females are forbidden from earning profit (or even wearing clothes) and if anyone ever found he got business advice from one, he would be ruined.
** Another episode [[FanonDiscontinuity that never happened]] has it go exactly the opposite way as Quark's mother tries to champion the cause of equal rights for females. Quark ends up masquerading as his mother's female protege (too well) resulting in the man she was supposed to be negotiating with trying to seduce him. When another character intrudes in order to expose his ruse, Quark exposes [[EasySexChange just how far he went to champion his mother's cause]].
* Similarly done in the ''{{Blackadder}} II'' episode "Bells" (where young girl Kate dresses as a boy and becomes Blackadder's servant "Bob").
* The ''Series/DoctorWho'' comedy skit "The Curse of Fatal Death" has the Doctor regenerating four times in ten minutes -- his companion (and fiancée copes) with seeing her beloved turn into Creator/RichardEGrant, Jim Broadbent and Hugh Grant, but when the final regeneration is female she sorrowfully announces that the Doctor is, quite literally, not the man she fell in love with. The Master, rather keen on the Doctor's new Joanna Lumley-shaped body, is only too happy to step in.
** Interestingly averted years later in ''Series/DoctorWho'' proper, when the good ship Doctor/Master did finally get two big damn snogs with one of them (the Master) now being female, but it had nothing to do with JumpingTheGenderBarrier. Writer Creator/StevenMoffat, who also wrote "The Curse of Fatal Death", went on record saying that gender isn't actually a factor for Time Lords when it comes to attraction and that there ''is'' no gender barrier for these characters.
* The ''Series/BuffyTheVampireSlayer'' episode "Him" features a high school jock with a jacket that hypnotizes women into falling for him. [[HilarityEnsues Hilarity, and drama, ensues]] as all of the female cast members begin doing over-the-top things to attempt to win his affection. In Willow's case, she's gay and one of the other female characters tries to get her out of the way by reminding her that said jock is a guy. But since Willow is ''also'' an incredibly powerful witch, she notes that this is a very minor problem and begins casting a spell to turn Him into a Her.
* In the ''Series/MurderMostHorrid'' episode "A Severe Case of Death", Dawn French's character dresses as a man [[SweetPollyOliver in order to impersonate a doctor]]. During the course of the episode she meets a man with whom she shares a slightly more-than-friendly chemistry. After it is revealled that Dawn's character is really a woman they pursue a romantic relationship.
* ''Dårfinkar och Dönickar''. Isak finds out his new buddy Simon is actually Simone, and decides he like-likes her (they're twelve).

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[[folder: Newspaper Comics ]]

* In one series of ''FoxTrot'' strips, Jason has a nightmare (triggered by Kafka's ''Literature/TheMetamorphosis'') where he turns into a miniature version of his sister Paige. He frets that his guy friends will harass him when he shows up to school as a girl. Older brother Peter remarks "There are worse things than being made fun of"; enter Jason's BlackBestFriend Marcus, holding a bouquet and [[HeartSymbol love hearts]] floating around his head.

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[[folder: Tabletop [=RPG=]s ]]

* ''{{Exalted}}'' has magically bonded pairs of people whose magic soul shards constantly reincarnate. Each pair is a Solar Exalt (Sun powers) paired with a Lunar Exalt (Moon powers, duh). However, the pairs don't always reincarnate in a gender that the other prefers (though bisexuality is common in Exalted, it is not [[EveryoneIsBi universal]]). Some just end up forming platonic bonds that last the millennia of their lifespans. Or, the Lunar Exalt can pick up the Twin-Faced Hero knack... and change gender at will.
** This isn't exclusive to Solar/Lunar couples, either. Two of the most prominent Lunar elders are a couple. One of them has a habit of changing sex every decade or so, and the other is [[HaveIMentionedIAmHeterosexualToday completely straight]], and will only acknowledge their relationship when the other is currently a woman.

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[[folder: Theater ]]

* This occurs via revelation of crossdressing instead of an actual change of gender in Creator/{{Shakespeare}}'s ''Theatre/TwelfthNight''.

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[[folder: Video Games ]]

* ''VideoGame/{{Persona 4}}'' has the interesting case of [[spoiler:Kanji Tatsumi]] and [[spoiler:Naoto Shirogane]]. The former falls in love with the latter at first sight, causing him to become extremely sexually confused. When he eventually comes to terms (via the Protagonist's help) with his new sexuality, his love interest [[spoiler:is suddenly revealed to have been a woman all along, once again throwing him into confusion]]. A case of Jumping the Gender Barrier twice, with the same person.

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[[folder: Webcomics ]]

* ''Webcomic/ElGoonishShive'' [[ShipTease plays with this possibility]] when (normally gay, temporarily female) Justin and (normally straight, temporarily male) Susan kiss (and stuff, though it ultimately goes nowhere). Shive presents as the only outcome that could ''possibly'' have ended well, and given that the alternative would have been [[LikeBrotherAndSister two good friends]] having a quick roll in the hay for all the wrong reasons, with no chance of a RelationshipUpgrade due to IncompatibleOrientation, that was probably a safe bet.
** Also has a straight example with [[spoiler:Nanase and Ellen. Nanase was a closeted lesbian, and didn't even realize it herself until she met [[ClosetKey Ellen]], her ex-boyfriend's OppositeSexClone]]. It's complicated. And [[{{Spoiler}} spoilery]].
** Elliot and Justin tend to [[spoiler:subvert this, as Justin is only attracted to Elliot when Elliot is male, but Elliot is only attracted to Justin when one of them is female, and [[http://www.egscomics.com/?date=2006-07-03 Justin isn't interested in becoming a full-time girl.]]]]
** Any Universe where Tedd and Elliot are opposite genders seems to result in this happening. For example, Beta Tedd and Beta Elliot (Ellen) are in a relationship. In a non-canon story where Tedd is female due to some reality-warping mishap (which retcons that s/he always ''was'' female), s/he and Elliot are in a relationship.
* ''Webcomic/SparklingGenerationValkyrieYuuki'' has the main character guy-turned-girl Yuuki's female childhood friend wait until after he turns into a girl to show romantic interest in him. Though given the general degree of GenreSavvy in a comic which explicitly runs on MagicalGirl Manga and Anime tropes a Main/RomanticTwoGirlFriendship may just be mandatory.
* ''Webcomic/{{Misfile}}'' inverts this by having guy-turned-girl told by straight-friend Emily that she would love him in a heartbeat if he was a boy. Since Ash is fighting Gender-Bending's [[FirstLawOfGenderBending most seen law]] and thinks of himself as a guy, he assumes that Emily is interested, with [[HilarityEnsues bad results.]] [[IfItsYouItsOkay They get over it.]]
** Also played straight with a male friend of Ash's; they met up after being separated for a while, and he suddenly tries to make out with her. Turns out her retroactive girl-self had a RelationshipUpgrade with him...but Ash doesn't remember it, and isn't attracted to guys anymore. Cue awkwardness.
* ''Webcomic/TheDragonDoctors'' partially subverts this, as Mori and Sarin become a couple only after ''both'' of them change gender. Each admits to finding the other more sexually attractive in their current forms, though after Mori changes back to her original gender they continue the relationship [[spoiler: even getting engaged]]
* Inverted in the ''Webcomic/JetDream'' RemixComic, where before her transformation to T-Girl Harmony Thunder, T-Bird Squadron leader Jack Thunder had a DatingCatwoman relationship with Raven Red, leader of the [[AmazonBrigade Dynamic Dare-Dolls]]. Raven Red didn't react well to Harmony's change, due to IncompatibleOrientation. (Harmony, however, seemed [[BiTheWay willing to give it a go]].) The conflict pushed Raven Red over the edge into PsychoExGirlfriend territory. She's now obsessed with either changing Harmony back into Jack (which all other characters [[FirstLawofGenderBending know to be impossible)]], or [[IfICantHaveYou killing her as a last resort]].
* Sort of [[InvokedTrope invoked]] in ''Webcomic/SomethingPositive,'' where the gay Jhim hits on a woman he thought was a man from behind. He winds up having a good time on their date, though, discovering she's a lot like his female friend Pee-Jee, and later laments to her how he wishes he could meet a man like that. Since Pee-Jee had [[IncompatibleOrientation had a crush on him]] for ''years,'' you can imagine she was annoyed.
* Mentioned by Jake in ''Webcomic/{{Homestuck}}'', as apparently he used to remark to Dirk that they were such good friends that he would totally go out with him if he were a girl. Dirk, for his part, is gay and in love with Jake. At least Jake admits in retrospect that he might have been leading him on a little. [[spoiler:And the relationship might actually happen even without the trope being enforced, as later Jake begins to wonder whether it really even matters that Dirk is a guy.]]
** [[RelationshipUpgrade The relationship does, in fact, happen.]] It doesn't last, although that's due to personality issues with everyone involved, not anyone's orientation.
* ''WebComic/{{Shortpacked}}'' has a rather odd example of this. Originally Ultra-Car was, [[ExactlyWhatItSaysOnTheTin as the name suggests]], a sapient car, whom all the characters treated as male. Meanwhile, Malaya is a human woman who had dated men and experimented with women, only to conclude she was straight. Then Ultra-Car switched to a FemBot body, Malaya comes to the conclusion that she's actually RoboSexual, and the two form a relationship (although Ultra Car is asexual).
* Played with and ultimately defied in ''WebComic/{{Exiern}}'': Denver thought Tiffany's GenderBent nature and general loathing of his female body meant his (Denver's) feeling would remain one-sided. Then he learns Tiffany's origin story and learns [[spoiler: Typhan-Knee was gay]] and thinks things have worked out for the best. Tiffany chews him out for assuming that now that that's in the open, he'd be "free" to be in a relationship with Denver, ignoring Tiffany's still prominent issues with his involuntary gender bending. Ultimately averted (at least for now) when Denver chooses to stay behind and [[spoiler: learn to control his newly-discovered [[ChangelingFantasy draconic nature]].]]

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[[folder: Web Original ]]

* In the ''{{Paradise}}'' setting, a number of stories feature involuntarily-gender-changed characters falling in love with someone of the gender they used to be, though they did not necessarily know them before the change. (In "After Hours", [[spoiler:a woman who used to be a man fell in love with a man who used to be a woman]].)
* This happens quite a lot on ''Website/{{Literotica}}''. Typically, a man gets turned into a woman and falls in love with his former best friend.
* Played with in ''Geraldine.'' A man turns into a woman inexplicably, has his (her?) best female friend help out, and years later turns back into a man, just in time to run off with said friend.
* After WebVideo/TheNostalgiaCritic did a crossover with WebVideo/DiamandaHagan, the fandom obviously shipped them. Problem is that Critic's a guy (if a feminine one) and Dia is a PsychoLesbian. Solution? Make Critic a girl so they can have all the BDSM sex ever.

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[[folder: Western Animation ]]

* Happened on ''WesternAnimation/FamilyGuy'' with a female WholesomeCrossdresser called [[TomboyishName Sam]] who Chris met. [[HoYay She kissed him when he still thought she was male]]. He said he just wanted to be friends (but privately noted it felt kinda ''good'' when "he" kissed him) before finding out she was actually female, after which he sort of thought a romantic relationship would be okay, except he had too much trouble talking to girls, a problem which he solved by pretending he didn't know she was female, thus subverting the trope - apparently he didn't really object to making out with a guy as long as other people wouldn't see it that way.
* Played with in ''WesternAnimation/CowAndChicken''. When the question of Chicken's gender is put on the table in one episode, after he laid an egg (it was actually a prank by The Red Guy), his best friends develop a crush on him (believing that 'he' is now a 'she').

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