It's hard to tell what does it exactly. Maybe it's the tendency of good guys to have [[BiggerIsBetterInBed larger]] [[UnusualEuphemism Johnsons]] than their evil counterparts. Perhaps it's the realization that GoodPeopleHaveGoodSex. But for some reason or other, sending an evil woman to seduce a hero has a surprisingly high turnover rate. There's a very good chance that's she'll just decide to bat for the other team (moral team, that is) rather than stick to the original plan. The sexier the hero, the more likely this will work.

To make some sense out of this trope, look at this way. SexEqualsLove right? And LoveRedeems, right? So sex redeems. If you're a woman, anyway--this is [[MyGirlIsNotASlut rarely used with female heroes]], making this something of a {{sex|IsEvil}}y DoubleStandard.

The trope may have a foot on [[RealLife reality]]'s ground, for less than intuitive reasons: usually the villain is a villain for ''everyone'', this including [[BattleThralls his or her female agents]] (who may get it even worse in their [[CrapsackWorld own camp]] compared to other minions of the BigBad, for being at the same time female, spies ''and'' whores). If the good guys prove their own goodness in bed, but at the same time in their manners, way of acting and treating her, this may be the last straw to convince her it's the proper time to switch boats.

The trope can also be {{gender inverted|Trope}}, with a male (usually the protagonist) suddenly being a ''lot'' more interested in helping some group after sleeping with a woman who's in the group.

For more wordplay on related tropes, think of this as Sex Equals Redemption as opposed to RedemptionEqualsSex. Here, the redemption comes after the sexual encounter instead of before.

May or may not be a part of a HighHeelFaceTurn and InLoveWithTheMark. Very common as a result of GoSeduceMyArchnemesis, markedly less so in a HoneyTrap. If the sex itself doesn't cause redemption, but she gets knocked up and that ''does'', it's DeliverUsFromEvil. Also see VillainessesWantHeroes which is basically the same except she doesn't succeed. If initiated by a female character, she is always a HeroicSeductress.

For a darker relative, see RapePortrayedAsRedemption. Related to SexIsGood.

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!!Examples:

[[foldercontrol]]

[[folder: Anime and Manga ]]

* Okiku from ''Anime/AfroSamurai''. It helps that she and Afro were ChildhoodFriends.
* This is subverted/played around with in ''Anime/GunXSword''. Michael Garret performs a FaceHeelTurn and got along well with [[DarkActionGirl Fasalina]]. Eventually at one point, Fasalina opts to have sex with Michael, and while they still do not make their HeelFaceTurn officially, that event was a turning point that they do love each other and have other important thing between each other aside of serving The Claw. In the ending, it almost looked like they could stop being evil, [[DiabolusExMachina until their relationship]] [[{{Pun}} came to a rather rocky end]]. However, this granted them enough sympathy points that in ''VideoGame/SuperRobotWarsK'', they survive that event and finally perform their HeelFaceTurn there ([[SecretCharacter provided that certain steps are taken]]).
* Subverted in ''Manga/JoJosBizarreAdventure''. Polnareff gets the idea of making Jotaro seduce Midler into sparing them after the woman in question admits having a VillainousCrush. Unfortunately, while a ChickMagnet he may be, TheComicallySerious Jotaro is NotGoodWithPeople and even worse with romance.
* In ''Manga/YuYuHakusho'' after he was healed by a human doctor the demon Raizen intended to devour her. She retorted that [[PoisonousPerson her body was saturated with deadly poisons she had ingested to produce primitive vaccines in her own blood]], enough that even a demon would be killed. As she told him to get on with it he was mesmerized by her fearlessness and instead made love to her and departed the next morning. Having spent his life killing Raizen felt unworthy of her and refused to eat humans from that day on, even after her DeathByChildbirth, starving to death over several centuries while hoping he would meet her reincarnation.

[[/folder]]

[[folder: Comicbooks ]]

* The original, 1940s [[TheGoldenAgeOfComicBooks Golden Age]] ''ComicBook/{{Airboy}}'' series. Kissing the titular protagonist didn't turn Valkyrie, a Nazi air ace, against her superiors - finding out that her subordinates were about to be executed did. Unfortunately, many fans of the later 1980s incarnation of the series didn't have an opportunity to read the original stories, so they assumed that this was an example of the trope.
* In the ''Mystique'' series, Mystique slept with a seeming ally, Shepard Leighton, only to have him betray her to Mystique's foe, the Quiet Man [[spoiler: who was actually possessed by the mind of Shepard's dead sister]].
* Gender-flipped in ''ComicBook/UltimateXMen'', in which Wolverine is sent by the Brotherhood of Mutants to infiltrate the X-Men and assassinate Xavier, but defects for real after entering a sexual relationship with Jean Grey. She is ''not'' happy when she finds out.

[[/folder]]

[[folder: Fanfic ]]

* {{Gender inverted|Trope}} in ''Fanfic/UndocumentedFeatures: Symphony of the Sword'', where BrainwashedAndCrazy [[Anime/RevolutionaryGirlUtena Saiyonji]] is redeemed by Azalynn having sex with him. Of course, for her, it's a religious ritual, and was also accompanied by talking him out of his craziness.
* This is still happening with the one of the main character of "The Blackened Heart".
* In the ''Manga/DeathNote'' SlashFic ''FanFic/ACureForLove'' once Light [[spoiler: becomes Kira again]] he's much more reluctant to kill L now that they've been sleeping together.
* Likewise in ''FanFic/FeverDreams'', after having sex with L, Light decides he doesn't want to kill him and so he has to [[XanatosSpeedChess quickly rethink his strategy in order to negate the traps he'd set and cover his (and Misa's) tracks.]]

[[/folder]]

[[folder: Film ]]

* Averted with Loretta in ''Film/TheSting''. [[spoiler: She sleeps with Johnny Hooker because she's the hitman "Salino" who's been hired to kill him. Somewhat played with because the character the audience thinks is the hitman is actually a bodyguard hired by Gondorff for Johnny's protection. It doesn't hurt that up until the very last second, [[PlotTwist the audience thinks that the only person who would help Johnny has just been shot by the 'man' gunning for him.]]]]
* Eve in ''Film/NorthByNorthwest'', although technically [[spoiler: since she was a mole all along she never really loved her crime boss partner in the first place]].
* Lili Von Shtupp from ''Film/BlazingSaddles'' pulls this after being surprised and overjoyed at how {{big|gerIsBetterInBed}} the black Sheriff Bart turns out to be. "''It's twue, it's twue!''"
** Had the [[MediaWatchdog censors]] and / or {{executive|Meddling}}s not objected, this was to have been played with for parody; Bart's next line after this was to have been to politely point out that Lili was, in fact, sucking on his elbow.
*** ...which is very interesting, because as written it subverts and mocks the stereotype, but as played it reinforces it, making it more ''bigoted''---[[UnfortunateImplications showing where the executives' priorities were]].
* ''Film/AustinPowers: The Spy Who Shagged Me''. Ivonna Humpalot and Austin Powers.
* ''Film/UndercoverBrother''. [[spoiler:White She Devil]] and the title character.
* ''Film/JamesBond'' examples:
** Tatiana Romanova in ''Film/FromRussiaWithLove''. She is assigned to seduce Bond in the first place as part of a HoneyTrap but really falls in love with him after she is successful.
** Pussy Galore in ''Film/{{Goldfinger}}'', which is a turn in more ways than one; it's implied in the film that Ms. Galore is a lesbian before her encounter with Bond (that's explicitly the case in Creator/IanFleming's [[Literature/{{Goldfinger}} novel]]).
** Tiffany Case in ''Film/DiamondsAreForever''.
** {{Lampshade|Hanging}}d and mocked [[Awesome/{{Thunderball}} spectacularly]] in ''Film/{{Thunderball}}'' by nasty girl [[EvilRedhead Fiona]]:
--->'''Fiona:''' But of course, I forgot your ego, Mr. Bond. James Bond, who only has to make love to a woman, and she starts to hear heavenly choirs singing. [[HeelFaceTurn She repents, and turns to the side of right and virtue]]...
--->[she steps on Bond's foot]
--->'''Fiona:''' ... but not this one!
*** Bond {{lampshade|Hanging}}s it himself immediately before this:
---->'''Bond:''' My dear girl, don't flatter yourself. What I did this evening was ForKingAndCountry. [[StealthInsult You don't think it gave me any pleasure]], do you?
** In ''Film/LiveAndLetDie'' Solitaire may have actually been attracted to him before it happened. (She [[MysteriousBacker secretly sent him a warning]] that the first girl worked for Mr. Big) and truly switched sides after he seduced her. (He tricked her - possibly. He later told her that the deck of tarot cards he used was rigged, but she was neither upset nor surprised; it was clear she held at least some grudge against Mr. Big already.)
** Averted in ''Film/DieAnotherDay'', in which Miranda Frost has sex with Bond to distract him so that she can convince him she is still on his side and remove all the bullets from his gun. [[FreudWasRight Symbolism much?]]
* Gila in ''Film/OurManFlint'', with Derek Flint.
* Meg from ''Disney/{{Hercules}}'', although as far as we can tell it wasn't actual sex that did it.
* Sorsha from ''Film/{{Willow}}'' with Madmartigan.
* Achilles in ''{{Troy}}'' with Briseis. He gains a heart and purpose from there on.
* ''Film/RevengeOfTheNerds'': Betty is more of the AlphaBitch than an actual enemy, but she IS the Alpha Beta leader's girlfriend until Lewis Skolnick covertly has sex with her in the Moon Room during the Carnival.
-->'''Lewis''': Jocks only think about sports. We [nerds] only think about sex.
* In ''Franchise/ThePinkPanther Strikes Again'', the same effect is achieved not by the antagonistic woman actually seducing the hero, but by having her sleep with someone she ''thought'' was him when it was in fact another member of the same multi-national CarnivalOfKillers as her. This leaves the hero very confused when she suddenly appears naked in his bed professing her undying love for him.
* A major reason for Jake going native in ''Film/{{Avatar}}'' is the fact that he's boinking a [[GreenSkinnedSpaceBabe very hot alien chick]]. The Colonel [[LampshadeHanging even calls him out on it]].
-->'''Quaritch''': "So, what, you find yourself some local tail... and then you completely forget what team you're on?"
* Dr. Elsa Schneider in ''Film/IndianaJonesAndTheLastCrusade''. Indy actually believed she was good when he slept with her, only later learning that she was TheMole. Apart from that innovation, it's played completely straight.

[[/folder]]

[[folder: Literature ]]

* This occurs at least twice in the ''Literature/IncarnationsOfImmortality'' series. Incidentally, the series also includes a Sex ''Heel'' Turn. However, the GoSeduceMyArchnemesis plan worked a little ''too'' well, and the newly minted AntiVillain comes out on top of the ensuing EvilVersusEvil struggle.
* Tahiri Veila in ''Literature/LegacyOfTheForce''. Subverted in that she doesn't actually have sex with Ben. Oh, and Ben's 14 and she's 28, making this an example of {{Squick}}. Of course, much {{Fanon}} says his father did the same to his mother, making this trope (and just about everything else a Skywalker does) InTheBlood. Also subverted, in that instead of the 'sex face turn' working, he converts ''her'' later on.
* Happens to half the women Golan Trevize meets in Isaac Asimov's ''Literature/{{Foundation}}'' series, two examples being Hiroko in [[spoiler:Alpha Centauri]] and the transport minister in Comporellon.

[[/folder]]

[[folder: Live Action TV ]]

* On ''Series/HerculesTheLegendaryJourneys'' however, everyone the Hercster slept with went from unpleasant or downright evil to virtuous and demure. His strength was apparently not his only divine ability.
* Kind of played with in ''Series/{{Angel}}'' at the end of Season 3, where [[spoiler: Lilah tries to recruit the abandoned Wesley, even claiming he shouldn't pretend he is too good to work for Wolfram & Hart since he betrayed Team Angel. They end up having sex and develop very quirky feelings for each other, even to the degree of relationship-like behaviour.]] Well, she was rather turned Face than Wesley Heel. What are the odds ...
* On ''Series/{{Buffy|the Vampire Slayer}}'', the opposite happened. Angel literally lost his soul and turned evil when he had sex with Buffy, because of a moment of true happiness. Granted, he was kinda cursed to that fate. Spike plays the trope straight-ish, though.
* On an episode of ''Series/{{Wings}}'', after Brian reports the improbable-but-true circumstances of his house burning down, a tough insurance inspector arrives to investigate him for fraud. She mercilessly builds her case against Brian, refusing to even consider his innocence... until she and Antonio have a wild passionate hook-up, and in the course of doing so accidentally start a fire that's comedically similar to the circumstances around Brian's house fire. The episode ends with the inspector unceremoniously dropping the case.
* ''Series/{{House}}'', the season 6 premiere. Kind of. He's still a sociopath afterward, but at least he's not a crazy sociopath.
* Season 1 of ''Series/{{Battlestar Galactica|Reimagined}}'' has Caprica-Sharon pulling one of these after a night with Helo. Ironically, Boomer's sex with [[spoiler: Helo, in season 4, only sets up her MoralEventHorizon]]. A meta-subversion of this trope occurs in the opening moments of the Season 3 premiere: Ellen Tigh is seen sleeping with [[spoiler: Cavil, to release Saul Tigh from Detention]]. Subversion because [[spoiler: Cavil ain't one of the good guys]] and meta because while we can presume this is not her first selfless act, it is the first one the audience sees, and so serves as an inadvertent representation of our [[RescuedFromTheScrappyHeap increased sympathy]] for her.
* Nearly happened in season four of ''Literature/GossipGirl''. Juliet's main goal is to destroy Serena, but begins to turn away from that plan after she jumps into bed with Nate. Then Vanessa convinces her to go back to the dark side.
* ''Series/StarTrekTheNextGeneration'' had the Face Turn precede the Sex part. In one episode, Riker is stuck on an alien world which has yet to achieve warp drive (but is very close). He ends up being hospitalized then held captive when they discover he's not the same species. One nurse offers to help him escape... if he'll sleep with her. Cut to her helping Riker escape.
* Averted in season 3 of ''Series/{{Heroes}}''. The viewers are led to believe this is going to happen when it looks like [[spoiler:Sylar]] is falling for Elle. (Admittedly, Elle isn’t exactly a shining paragon of White Morality, but any influence she can have at this point [[AxCrazy can’t help but be for the better]].) They end up on a beach alone at night, and just as Elle and the viewers think he’s going to tell her how she saved him and [[RedemptionEqualsSex they’re going to sleep together]]…[[spoiler:Sylar]] whispers that they’re both “damaged goods” and can never change[[spoiler:, and then he brutally murders her.]]

[[/folder]]

[[folder: Mythology ]]

* In ''Literature/TheEpicOfGilgamesh'', Enkidu starts off as [[RaisedByWolves wild and uncivilized]], but then has sex with a temple prostitute named Shamhat over the course of a week. (Perhaps she was using sex as a reward for desirable behavior on Enkidu's part?) By the end of the week, Enkidu is civilized, and no longer roams around with animal companions in the forest, but rather befriends Gilgamesh. [[spoiler: Enkidu ''does'' blame Shamhat for his death and curses her, however, because if it weren't for her, he would have remained a wild man and not gotten caught up in all the mess he and Gilgamesh did. The sun god reminds him that he is better off because of her, and Enkidu takes back the curse he put on her.]]

[[/folder]]

[[folder: Professional Wrestling ]]

* Wrestling/BeulahMcGillicutty turned face in Wrestling/{{ECW}} after sleeping with Wrestling/TommyDreamer
* The Lovely Lacey gradually turned face in Wrestling/RingOfHonor after sleeping with Wrestling/AustinAries

[[/folder]]

[[folder: Video Games ]]

* [[spoiler: Eva ]] had simple orders in ''VideoGame/MetalGearSolid3SnakeEater'': seduce Naked Snake, steal the [[MacGuffin Philosopher's Legacy]] from him, and kill him. In the end, [[spoiler: she does steal the Legacy, but leaves him alive with a recording explaining her involvement, and her connection to The Boss]]. They meet again [[spoiler: with much plot relevance]] before ''VideoGame/MetalGearSolid4GunsOfThePatriots''. Possibly subverted when [[spoiler: Eva claims that it wasn't her feelings for Snake that stopped her from killing him, but the respect she had for the Boss, who made Eva promise she would let him live]].
* Possibly {{gender inverted|Trope}} in the ''VideoGame/NeverwinterNights'' mod ''VideoGame/ADanceWithRogues'', where having sex with Vico in the second chapter leads you down a path in which he is a somewhat nicer person than your other options in that scene. Played straight in ''VideoGame/TheBastardOfKosigan'', in the first module with the female mercenary in the forest north of Cologne. Having sex with her is an optional part of her HeelFaceTurn, though.
* Early in ''[[Creator/AliceSoft Sengoku Rance]]'', Suzume is dispatched by Inukai of Iga to seduce and kill Rance. She chooses to defect to Oda after having sex with him. Since when is Rance a [[HeroicComedicSociopath good guy]]? [[PetTheDog When the plot]] [[ThrowTheDogABone calls for it.]] [[CrapsackWorld Relatively speaking.]]
* Can be done in ''LiberalCrimeSquad'': high seduction can convert [[TheMenInBlack CIA agents]], and even the corporate CEO.

[[/folder]]

[[folder: Web Original ]]

* The ''EvilOverlordList'', #19. Stick to the list and you shall succeed.
* Leather from ''Literature/InterviewingLeather'', has some ''really'' nasty things to say about "heroes" who think they can redeem a supervillainess by sleeping with her.


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