Optional Sexual Encounter

In certain games, particulary computer RPGs, the player character will be able to engage in sexual encounters with NPCs. These often have no discernible in-game effect, and since you (usually) do not get to see anything interesting (owing to censorship), these do not actually qualify as sex scenes. These scenes are usually only good for self-imposed challenges of the "gotta screw them all" variety.

If expanded to a full-blown Romance Arc with a party member, this becomes a Romance Sidequest. If it increases your abilities, that's a Level Up At Intimacy 5. Contrast with Deus Sex Machina, in which a required sexual encounter is awkwardly crammed in somewhere it barely fits.

Action Adventure
"Chaco: You want to go through my fireplace...?"
 * In Overlord if you get your mistress's approval level high enough, she will invite you into the bedchamber. The doors shut behind you and you hear her moan as the entire tower shakes. In the sequel, you can not only convince your multiple mistresses to do so, you can even get them in a Foursome.
 * Surprisingly, Cave Story has an implied sexual encounter as an Easter Egg. The first time you go to Chaco's house, you have the option of sleeping in her bed to recover life. When you wake up, Chaco is sleeping in the bed, and you have lipstick in your inventory. Note that the protagonist is a robot and Chaco is a purple bunny..dog..thing.

Action Game

 * Each God of War game has one of these. You get a decent amount of red orbs for doing them, although this is useless in God of War 2 since you lose all your red orbs shortly after, before you have a chance to use them. However it could be worse - you could get blue orbs.
 * Inverted with Cubivore. You are required to enter the Tunnel of Love to progress the game. In it you mate with all the females you attract, up to twenty-five.

Adventure Game

 * Fahrenheit (2005 video game) a.k.a. Fahrenheit (2005 video game) has two: between Tyler and his girlfriend Sam and between Lucas and his ex-girlfriend Tiffany, in addition to one mandatory sex scene . No wonder the uncut version this game got an AO rating in the US.
 * And let's not forget that that mandatory sex scene.
 * The protagonist of the PC game Secrets of Da Vinci: The Forbidden Manuscript has to charm the game's only female character into letting him into her private rooms, so he can acquire some necessary information for his quest. If he makes her like him enough, he gets invited to spend the night with her. The "slumber party" is entirely optional, but it does actually affect the game's ending in a small, story-relevant way. (It doesn't change whether or not he succeeds in the rest of his mission.)
 * In the videogame adaptation of I Have No Mouth, and I Must Scream, Ted can gain access to a needed room by sleeping with a chambermaid.
 * I-0 by Adam Cadre (subtitled "Jailbait on the Interstate") can be completed without screwing your way through every NPC you run into, though, assuming you skip the Sex Is Death moments, it's a lot less fun.
 * Depending on your choices, It is possible for this to happen to Ethan Mars and Madison Paige in Heavy Rain. Bonus in that not only do you get to see what is going on, but the whole scene is completely interactive.

Roguelike

 * In Nethack, the player's character has the option of engaging in risky encounters with succubi and incubi. The character can gain (or lose) constitution, wisdom, health, energy, or experience. Players occasionally seek out gender-benders for their characters in order to match the available demons. The sexual encounter can also be non-optional if the "foocubus" supernaturally seduces the character and strips off his/her armour while the character is in the middle of deadly hand-to-hand combat.

Role-Playing Game

 * Danchi Zuma no Yuuwaku, released in 1983, was the earliest RPG H-game and possibly the first RPG to feature graphically explicit sexual encounters.
 * The Dragon Knight series of RPG H-Games featured graphically explicit sexual encounters and is possibly the Trope Maker for Eastern RPGs.
 * In the third game Knights of Xentar, much of the game revolves around rescuing Damsels in Distress and having sexual encounters with them.
 * In The Witcher, the protagonist, Geralt, can have sexual encounters with a wide variety of women, including a princess, a dryad, a vampire and a minor goddess. While we do not get to see the action, the game displays drawings of whoever Geralt went to bed with. In the uncensored version, most of these include exposed breasts.
 * In the sequel, the sex scene is animated and does not shy away from nudity, though the bulk of the action still happens off screen.
 * Sexual encounters are implied in several Dragon Quest games.
 * In the early Dragon Quest games, particularly Dragon Quest III, there are girls who offer the player character a "Puff Puff", implied to be a sexual encounter.
 * In Dragon Quest I, after rescuing the princess, you have to carry her back to the king. If you sleep at the inn while still carrying her, the innkeeper's farewell dialogue will change. This can rachet up to Refuge in Audacity if you take a young woman who wants to tag along with you from Tantegel Town while holding the Princess in your arms to the inn, and since the message is the same with either of them seperately, the game all but states ""you slept with two women at once!''
 * In Dragon Quest V, the player has a choice over which girl the protagonist should marry, after which a sexual encounter is implied with the bride of choice, though only one of them, Nera, makes sexual encounter references.
 * By the way, one should take note that the sexual encounter in Dragon Quest V, (The Nintendo DS Remake) is not exactly "optional" but it is in fact required. Because the game won't let you progress until you've gotten married, and then if you marry any one of the other eligible brides instead of Bianca, you don't have to go back to the Roundbeck Inn in order to get a cutscene implying sex. Because apparently either Nera or Debora (depending on who you married) had already had sexual intercourse, with you,(the player character) on her wedding night, the evening before she decided to become your traveling companion spouse.
 * Subverted in Dragon Quest VIII, where you can go to a seedy establishment and see an attractive young woman for some... "Puff-Puff". She blindfolds your character... then squishes a pair of Slimes against your head.
 * Since Three D Dot Game Heroes is essentially a massive Shout-Out to early 8-bit games, some of the situations from Dragon Quest make a cameo appearance: You get a trophy ("Have a Nice Night?") for stopping to rest at the inn during the short window between rescuing the princess and taking her back to the castle, and "Puff Puff" is revealed to be merely a platonic massage.
 * In the first Fallout, male player characters can have encounters with females, but there is no benefit for doing so. Female player characters can actually get in-game benefit by asking for money first when they are propositioned. In the sequel, both sexes can act in porn for financial reward, and a male PC sleeping with the wife or daughter of a mafia boss can influence the ending for the town of New Reno. In both games, the scenes consist solely of the screen briefly fading to black.
 * The first Fallout occurrences include: saving the prostitute in Junktown (do not kill the hostage taker), the female caravan Kari owner in the Hub (she gives you Buffout and Mentats, sometimes stims), and females have an option at the former church (now the Master's lair) with a guard. Same effect as Fallout 2 -- fade to black. Occasionally the prostitute rescue may also cause (via occasional glitch?) a lesbian encounter, but normally it's not supposed to.
 * One of the "encounters" of Fallout 2 ends with you getting caught in the act. Your only options are to run for your life (leaving all of your equipment lying on the bedroom floor, you were naked after all) or being forced into a marriage. What's more depending on your preference in "companions" this could be either hetero- or homosexual marriage. It's possible to fast-talk your way out of it.
 * There's also a, ahh, encounter in the sequel, a result of a lost bet to a burly Super Mutant and, uhm, resulting in the player waking up the next morning with a ball gag in their inventory, with a description along the lines of "If you know what this is, you don't need a description. If you don't know, you don't want to."
 * Also in the sequel, the non-violent way of getting Vic to join your party involved getting radio parts so Vic can fix a radio for them, and then paying them $1,000 to their leader, Metzger. Unless you're female, in which case you can sleep with him and pay $500. At that point in the game, $500 is pretty useful. Fortunately, you can save all $1000 as well as your dignity (did we mention that Metzger is the boss of a child slavery ring?) by just dropping some explosives on the floor and locking Metzger in the room with them.
 * Also in the second Fallout 2 game, you can buy sexual services for the party members (the fee is much higher for servicing ghouls and Super Mutants, by the way). Buying said services for Super Mutant Marcus leads to a dialogue revealing some alarming things about ... Fallout Bible says Marcus was joking, though.
 * Averted in Fallout 3 with both Nova, the Megaton prostitute who you can hire to "sleep with" you. She literally goes up to a room and falls asleep. Similarly, at one point you can buy a combat slave who will repeatedly offer to be a Sex Slave, but your character isn't interested...Unless you're using certain mods, of course.
 * Well with Nova, you can always play up on implications that you have done "it" while sleeping with her.
 * If the mechanic didn't shatter Suspension of Disbelief beyond the most desperate attempts to block out the cognitive dissonance of it...at least Morrowind and Oblivion mods have the excuse of being amateur work, and even they didn't put the partner to sleep before the black-out.
 * In Fallout: New Vegas, female characters with the Black Widow perk get the option of going to bed with Benny. Doing so results in a fade to black with some amusing lines delivered by him, and you get the option of killing him silently in his sleep. This is arguably the easiest way of getting rid of him and retrieving the Macguffin he took from your character.
 * There are also several others hidden throughout the game, with both men and women. Most of them give you the well rested perk. Which means 10% more exp.
 * Wasteland features a sexy three-legged hooker. If you sleep with her, you get...desert herpes.
 * In the first chapter (excluding Prelude) in the first Neverwinter Nights game, you have the option of going to a brothel to, um...spend some time with a courtesan or (if you're male) two. You even get some experience points (and a little sidequest from one of them, if you're male) from them after the session. Needless to say, the screen only fades to black when it starts, and shows both participants in their skivvies afterwards.
 * The Neverwinter Nights hall of fame user created module A Dance With Rogues is notorious for using this trope extensively.
 * The "Bastard of Kosigan" module series (male characters only, for story reasons) also includes several optional sexual encounters. In one case the woman disappears as soon as you leave the area and doesn't show up again until the ending sequence, and in another case you can invite the woman to join your party, but she never references your experience again. With the red-headed peasant you have the option of coming back during the siege to rescue her from the French, implying that she will be important in the as-yet untranslated fifth module; Yannia does comment on your experience together later on; and the Author Avatar that shows up in the prologue scenes to give plot exposition has no relevance to the story and doesn't even seem like the same person in her two appearances (in the first you can seduce her, in the second you are limited to flirting). Curiously, the only major female character who you can't have sex with is your character's first lover (not counting the French lord's daughter and the ugly daughter of the Duke of Burgundy), though you do get a rather thorough make-out scene with her if you choose the right dialogue options.
 * Many of the sex scenes are cleverly designed to be quite different depending on how handsome your character is. The mercenary in the forest outside of Cologne is rather...eager...if you have a high Charisma score, but it plays out more like a rape scene if you have a low Charisma.
 * Subverted with Delilah the halfling; although it looks like an Optional Sexual Encounter, it's actually.
 * Knights of the Old Republic will allow the player character to accept "a massage" (off-screen) from slaves belonging to a crime lord. The PC can even rate the quality of said massage afterward. The encounter is heterosexual only - approaching a slave of the same gender earns a polite hint to try someone else. Later you can get an implied kiss from other characters.
 * The sequel is much more sexual. As a male you can train with Handmaiden, who insists that you and her fight with no armor.
 * Don't forget the female gambler who invites you to a "card game", but only if the PC is male. If not, your friend scoundrel will take over.
 * In Arcanum: Of Steamworks and Magick Obscura, it is possible to throw away money on prostitutes for no benefit whatsoever (other than a screen fade). Doing errands for the brothel mistress will result in male characters being offered nookie as payment, while a female character can choose between cash and lesbian nookie. There is also a scene in which the player character can seduce a widow as an alternate means of getting a Plot Coupon, and a female character will be barred from a men's only club and must secure permission to enter from the owner (a sleazy gnome) either by bribing with cash or going to bed with him. (Alternately, you can pickpocket the little bastard for the permission slip. Or kill him and take it off his corpse.)
 * If you have the stats to back it up, you can threaten to kill him with your bare hands, and he'll fold.
 * There is one point where an optional sexual encounter will avoid battles; The Baroness-type Dark Elf leader will graciously let you slip out peacefully in exchange for some companionship.
 * And if the player's so inclined, in lieu of the prostitutes, there's also a sheep in the back room...
 * There is also one quest for a temple where, when you succeed, the priestess asks you if you want to join the congregation in celebration of you fixing stuff. If you say yes, she gives you something to drink, the screen fades to black and you wake up in your undies, with the screen filled with the "congregation" similarly dressed... and the indication you have one hell of a hangover...
 * If you're carrying the sacred statue when you talk to her, she'll be very hot for you and offer to "teach you in the ways of the goddess", regardless of your gender, and you can do it as many times as you like until you give her the statue. That thing sure packs some power.
 * If you talked to Virgil beforehand, he makes it clear what the celebration will entail. It seems you're just in time for an annual ritual.
 * In Ultima VII Serpent Isle there is a plot-mandated event in which a wizardess wants to bed the player character, even if the player character is a woman. Earlier there is an optional event in which you can go to bed with an NPC and after the first time they will reward you with a moderately useful item: a fur cloak that is needed as protection from cold later in the game (but ). Strangely enough, the Naked Dallas Cowboys Cheerleader Cheat Room (yes, this is a real place in Serpent Isle) doesn't include any.
 * In the mandatory one, the player is allowed to go willingly or staunchly refuse. If you continue to refuse enough times, you can escape the sexual encounter, but not before being stripped naked by magic,
 * These scenes are also notable for NOT fading to black, or at least not until everything that's there to be seen has been. Then again, the game's pretty low res.
 * In The Black Gate, you can woo Nastassia in Cove and eventually win her heart by finding out what happened to her father. However, even though you can engage in passionate kissing, and she becomes obviously aroused (in the dialogue) by being near you, and despite the fact that everyone else in Cove are paired-off lovers, you can never become intimate with her. However, you can get it on with the prostitutes in Buccaneer's Den all you want! What The Hell Avatar?!
 * Although doing the latter does have an in-game effect, as there's a unicorn who will run away from you if your character is no longer a virgin.
 * Similarly, in The False Prophet there are two prostitutes (one of each gender) posing as gypsies that you can proposition if you guess their true profession. Both prostitutes will sleep with a PC of any gender. Going whoring does affect your Karma Meter, though.
 * They also don't care about species either, which means Sherry the Mouse can get laid by a human.
 * The RPG Divine Divinity allows you to sleep with prostitutes (of either sex); the first time gains you extra experience points.
 * As does the second if you ask for the "special treatment".
 * The culmination of the romance paths in Baldur's Gate II is the chance to sleep with your paramour (though, in at least one case, doing so is a bad idea). There is also a mod which adds a number of one-off sexual encounters.
 * Interestingly, if the player character is male, Baldur's Gate II also features a (nearly) mandatory sexual encounter - while your party is attempting to infiltrate a Drow city, a Drow female will order the PC to sleep with her. If you refuse her, the whole city will turn hostile. Saying yes will upset any NPCs you may have been wooing, but has no other repercussions. The only way to avoid having to sleep with the character is to
 * There are a couple more ways, depending upon your partner:.
 * In the expansion pack Throne of Bhaal it is possible to have sex with a prostitute if you are playing as a male character. Doing so will cause an immediate end to romances with Aerie or Jaheira. Viconia, however, will not break up with you and will comment that there's no way a common prostitute can compare to her.
 * Fable - the encounters are presented with the screen going black and your sex partner saying some humorous things and moaning in a cockney accent. "You're so norty!"
 * There's even a sidequest that lets you become a crossdressing prostitute.
 * Fable II lets you run sexually amok through Albion, sleeping with anyone and everyone if you so desire (with the exception of people that are not into you, like guys that are straight not sleeping with other guys). However, for every unprotected encounter, you can get an STD...that does nothing, apparently, because your heroic awesomeness won't let it. You can even get married and have kids.
 * Of course, doing this can provide for some... interesting results. Fable 2, for whatever reasons, considers getting pregnant/getting your mate pregnant... an STD.
 * Parodied in Steambot Chronicles, at the end of a date, the player can have "hot chocolate" if the date went well enough.
 * One of the options you can choose results in the normal fade to black once you've made your move... followed by a "Oh no you don't" and the sound of an overeager playing character getting a good talking to. No Christmas Cake for you!
 * Vampire: The Masquerade: Bloodlines, it's possible to have sex with Jeanette, a minor NPC, but it's very difficult to do so - and a vampire that enjoys sex in the Old World of Darkness is supposed to be insane anyways. You also have to give up getting the best ending to a particular quest. ("Best" meaning most XP. Whether getting more XP or a fade to black with some sound effects is "best" is your call.)
 * Additionally, if the player character is female and of certain clans, she can avoid a side quest by having sex with Romero, the ghoul guarding the cemetery in Hollywood. Again, this actually loses you XP and rewards.
 * The prostitutes and blood dolls may count; for them the Kiss is sex, even if for you it's just feeding.
 * Superhero League Of Hoboken allows the members of the party to visit brothels. Such an experience raises their, well, experience.
 * Mass Effect plays this straight with your (male or female) lead character able to court either a human crew member of the opposite sex or a genderless (but female-looking) alien. Following the romance subplot leads to a 30-second Cutscene showing mild sexual images, near the end of a 20-hour game. There is also an opportunity to engage in a sexual encounter with a second member of the aforementioned genderless alien species, if one expresses disappointment with the more mundane gift she offers in return for helping her.
 * This was enough to enrage the Moral Guardians who, naturally, never played the game. This eventually became so bad that the game itself got more advertisement when being decried as a completely pornographic game rather than the epic space opera it is. Fortunately, this was turned down when the sequel came out.
 * In the sequel, if Shepard is male, he has the option to have casual sex with, after which she wants nothing to do with him. (In contrast, if Shepard turns her down but then spends time earning her trust, it turns into a Romance Sidequest, one of the six possible in the game.)
 * Something similar happens in ShinMegamiTensei if... where the hero can do naughty things with a succubus if there are no female party members. The succubus will have to offer first, though. The hero has to make her hot through battle conversation first.
 * In Planescape: Torment there are prostitutes that fit this role, but more importantly, allow Morte to raise his taunt skill by bantering with them.
 * One prostitute is willing to do...something with Morte. It's not shown and it doesn't have any game effect, but when Morte returns he's described as looking happy and bearing lipstick marks. (For the uninitiated, Morte is a floating skull.)
 * The game also has a very large brothel, which turns out to service intellectual lusts instead, and is run by a chaste succubus. The Nameless One can (optionally) get service from practically all of its prostitutes, which involves from learning to play strategy boardgames, to political debates, to swapping fables, to having abuse heaped at you.
 * Persona 3 also had that as well. Three female members in your party (Plus two girls that aren't in your party) will spend the night with the male lead if their social link is maxed out. This is just the icing on the cake as it also gives you awesome personas to smash your enemy with. But it is tricky to pull off a triple play though and requires a rigid schedule.
 * Additionally, in FES you can date and, near the end of the game, make it with Elizabeth. Mostly it's just for fun, but it's really amusing nevertheless.
 * The PSP re-release gives the same option to the female protagonist with two of her male teammates and with Elizabeth's younger brother Theodore - although instead of occurring automatically in the last rank of the Social Link, they are bonus scenes available after completing the S.Link.
 * And just to make you (and, undoubtedly, the protagonist) feel more awesome, in case you don't know, both Elizabeth and Theodore are in fact extremely powerful Humanoid Abominations who might or might not exist between dream and reality in the collective subconscious. Some fans theorize that they represent the Anima and the Animus, but this just makes things Squicky.
 * And you can do it again in Persona 4.
 * Shows up all over the place in Dragon Age: Origins.
 * You can sleep with the love interests in your party: Morrigan, Leliana, and Zevran if you're male; Alistair, Leliana, and Zevran if you're female.
 * You can also visit "The Pearl" brothel and have your choice of partners, male or female of any race.
 * Sleeping with Isabela the pirate is one way to learn the Duelist specialization, with the additional options of a threesome (with Zevran, a hardened Alistair or Leliana) or a foursome (with Zevran and a hardened Leliana). Morrigan disapproves of such nonsense, so leave her behind if you want to get lucky.
 * The young Elvish couple in the Dalish camp. You could help them get back together, or, if your Coercion skill is high enough, you can instead seduce one of them out of their virginity and rub it in to the other person.
 * The human noble PC can have one within the first ten minutes of the game, in the starter area, with either the son of a visiting noblewoman, or said noblewoman's handmaiden. A male dwarven noble can have one with two female "noble hunters" in a similar fashion.
 * There's one Optional Sexual Encounter that is plot-relevant.
 * You can also choose to have sex with  instead of killing it or learning the Blood Magic specialization.
 * Dragon Age II has several. First, there are the romancable NPCs that are standard in Bioware RPGs. Your character can also enter a Friends with Benefits relationship with Isabela that involves no romance. There is a brothel where you can spend your hard-earned cash on courtesans. And there are also NPCs in certain parts of the game who will offer to have sex with you.
 * The Bard's Tale newer version after you dealt with a couple of rats in a bar, pending on if you are a nice guy or not. The barmaid will spend the night with you or leave you in a cold cellar for the evening.
 * Ironically, the correct way to get her to sleep with you is
 * In Alpha Protocol, Mike can potentially sleep with Mina, Scarlett, or Madison, if he has a strong positive relationship with them. SIE is also an option, if Mike chooses her as his handler for the final mission, where she'll break into the medical bay to release Mike. And then she'll let him out of his restraints, too.

Simulation Game

 * The Sims 2 allows you to create a Sim whose life goal is to have sex with as many Sims as possible. The sex is called "WooHoo" and the way it plays has the two Sims go under the covers and you see lumps of movements take place. Cartoonish sounds like "meow" and "honk honk" being expressed keep it from being sexy.
 * There are patches to fix that however.
 * Sims 3, said cartoonish sounds are toned down, and the Sims do giggle and moan contentedly. It's still not all that sexy, though.
 * Same goes for the "Love Tub". We also get to see various limbs flying out of the tub every now and again. (How do they breathe while doing... all that?)
 * Players who want to get a look at the sexy by pausing the game and maneuvering the camera under the covers (or using a cheat to remove the covers period) will discover that the joke is on them—those energetic lumps are created by alarming boneless contortions that have nothing to do with sex as we understand it.
 * A few of the Harvest Moon games (specifically Back To Nature and Friends of Mineral Town) have "special dates" that you can have with the potential bride of your choice, by bribing giving the Harvest Goddess gifts for ten straight days. You'll immediately get a scene at the Hot Spring with the girl of your choice, where you and she "spend some time together". (Although, given the confusion she'll show when the scene begins, some Unfortunate Implications can be drawn about consent.)
 * If you're already married, you'll just get some Relaxation Tea Leaves.

Stealth Based Game
"Ezio: "I may need a lot of... comfort and succor.""
 * Hitman: Blood Money subverts this trope on one mission and parodies it in another. While attempting to assassinate a Senator's playboy son, you may be "seduced" by a character who invites you to a bedroom. In the other mission, where you are assassinating a witness under FBI protection, if you dress as a pool boy or a clown, the wife of the target will invite you to the bedroom. She'll fall asleep before doing anything...
 * There's a third situation in a Vegas hotel later in the game; encountering a drunk, older woman stumbling about the halls, she'll invite you back to her room, where she'll awkwardly attempt to dance and be 'sexy', ending with her passing out on the floor.
 * Another for interactive, though admittedly slightly less so: At the beginning of Assassin's Creed II, Ezio "visits" a girl named Cristina and you're able to actually do the movements for taking off her clothes. It unfortunately fades to black, and Ezio ends up getting chased out of the house through the window in the morning.
 * In another example, he's, uh, "taken care of" by four or so prostitutes at Teodora's brothel in Venice, in thanks for helping with the assassination of Carlo. Fivesome, anyone?


 * Ezio gets a private riding lesson with a girl named Amelia if you beat her best time in a horse race just outside of Forlì.
 * At the beginning of Assassin's Creed: Brotherhood Caterina Sforza jumps in bed with Ezio as a "welcome home" present after Later you find out

Turn-Based Strategy

 * The turn-based strategy game Centurion Defender of Rome, a Spiritual Successor to Cinemaware games like Defender of the Crown, allowed the player to attempt to seduce Cleopatra if certain conditions were met.
 * Defender of the Crown - when you rescue a Damsel in Distress
 * Agarest Senki, if you married the girl of your choice, you will be treated to a CG where the girl you had sex with is wrapped with nothing more then bedsheets. This is called Soul Breeding apparently.
 * Actually you do not have to be playing on "Hard" to get the CGs. You can choose any difficulty you want.
 * The sequel brings the old Soul Breed System back with a new twist if your relationship with your chosen one is bad enough, she will still bear your child but it will be heavily implied you raped her to make the heir as the scene is rather dark with an ominous music to it.
 * Star Control II offers an optional encounter with Talana, commander of the Syreen race. The screen cuts to black and you're able to pick from some rather amusing Dialogue Tree choices.
 * Jagged Alliance 2 has one. In San Mona, the local Wretched Hive of Scum and Villany, a quest involves freeing a girl from forced prostitution. The easiest way is If you get lost on the way to the target, you may end up in the room of another hooker, which results in a fade to black, a sound effect, and your mercenary ending up outside the brothel. This happens regardless of who is doing it.

Visual Novel

 * At the end of Hagino's route in Canvas 2, you have the option of going drinking with the previously reviled Shie. If you choose to go, your relationship is mostly repaired and Hiroki nurses a hidden affection for her, but still ends up with Hagino.

Wide Open Sandbox

 * In the Grand Theft Auto games, encounter with prostitutes actually do have a benefit: they regenerate the player's health beyond the normal maximum limit.
 * Rather than fade to black, the car just bounces with the camera at such an angle as to obscure the player's vision of the naughtiness (if the player is driving a convertible the health bar fills up instantly and the prostitute immediately leaves the vehicle). However, by switching to the first-person view and activating the rear view one can see the characters sitting motionless, perfectly clothed and behaving themselves.
 * Additionally, GTA: San Andreas used it as a way to increase your Relationship Meter with a girlfriend. But only once it got to a certain point already (except for Millie, who was..less choosy in certain regards).
 * San Andreas also had the Pimping Sidequest, which when completed caused prostitutes to give you money while in your, ahem, employ. And then, of course, there was "Hot Coffee"...
 * Which they "corrected" in GTA IV by sticking to sounds during those scenes, but in turn, took the prostitution scenes to a whole new level. Let's just say it's gone far beyond the "bouncing cars" from the GTA III trilogy - with a variety of animations depending on the "service" you buy.
 * Saints Row has this as well with Ho-ing Diversions located in Red Light Districts where you have sex with hookers or other guys if you are a girl. You see nothing though, though quitting the diversion will give you "You should be ashamed" rather then "Diversion cancelled". It is as if they want to rub salt in GTA's wounds.