"Humans are disgusting. We'll have sex with anything. Every day, an Earth doctor pulls an octopus or a light bulb out of someone that was put it there on purpose. Captain Kirk boned things that didn't even have holes until he met them. And this article itself is probably next to an ad featuring a flashlight that you can fuck. Seriously, come visit, aliens. See what happens."The Captain Kirk approachnote to First Contact; namely, to have sex with a Green-Skinned Space Babe. Of course, questions of Bizarre Alien Biology are never raised beforehand, such as whether the species in question has compatible genitals or if its bodily fluids are caustic to human flesh (or vice-versa). Inverse of Mars Needs Women and a subtrope of Interspecies Romance. Contrast Human Mom, Non-Human Dad. See also Anal Probing for when the aliens do this to us.
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- The XXXenophile series is full of these.
- Professor X falls in love with Shi'ar Empress Lilandra during the Phoenix Saga and becomes her consort. While their respective duties kept them from truly being together, she would still send him care packages in the form of technology upgrades for the mansion.
- Dazzler of the X-Men married extra-dimensional alien Longshot, who has since their divorce gone on to make Boldly Coming a way of life.
- The Marvel Universe is full of these things. Captain Mar-Vell has at least three children, none of his own species, for instance.
- Empowered: Not one, not two, but three of the Superhomeys obtained their powers from sex with non-humans (one a robot!). In fact, they met in a support group for it. One of them gained his powers through an alien STD.
- Green Lantern: Every single major love interest that John Stewart has ever had was an alien. He has been married to the red/magenta Korugaran Katma Tui and dated the blue Baraquan Merayn Dethalis.
- In The Dark Knight Strikes Again, Hal Jordan has retired to a planet of green Gumby-like humanoids, married a local, and sired at least one little half-Gumby/half-Human.
- Incredible Hulk: Two of the Hulk's three wives have been aliens.
- Lampshaded in Les Mondes d'Aldébaran. As Alexa notes, Kim encounters a humanoid alien from another galaxy... and one of the first things they do is have sex.
- Tech Jacket: Subverted, when the protagonist Zack Thompson and his Geldarian love interest Princess Lin start getting closer they are foiled by an unspecified incompatibility of genitalia.
- Inverted in With This Ring the Martian Manwomanhunter, J'onn J'aarkn loves having sex with humans. So much, that the former biology teacher made a career out of it as an adult film star. Although to be noted Martians and Humans don't look anything alike and Martians are rather monstrous looking. J'aarkin even notes how Humans appeal to him differently than other Martians.
- Non-consensual version in the Star Wars fic ''Important Information''. Han Solo is captured by a group of imperials and endures several days of brutal torture, but stubbornly refuses to break. His captor is of a species known for using its sexuality as a weapon, and when she sees that torturing Han isn't working, she begins repeatedly raping him. He struggles with the same shame, anger, and humiliation that many real victims do, and his road to recovery is a long one.
- In Origin Story, Kryptonian Alex Harris and Human Louise Fulford have an active and healthy sex life that sometimes dips into Casual Kink bondage games.
- A Changed World has Kanril Eleya, a Bajoran, make a wisecrack about James T. Kirk's reputation for this: apparently Bones had to create a cure for banta fever after Kirk's first contact with her species.
(Reshek Gaarra, Bajoran, nearly falls over laughing.)
Birail Riyannis: I'm ... missing something funny. Wait, is banta fever—
Eleya: An STD? Yes it is. (Biri starts giggling.)
Films — Live-Action
- Galaxy Quest:
- When the engineer attracts an attractive female alien. Of course, her true form isn't a human alien or rubber forehead alien, but a be-tentacled starfish alien
- And lampshaded early in the movie as the "crew" chastises Jason Nesmith for his character (Captain Taggart) doing exactly what James Kirk did in his own show. Although it wasn't made clear if it was his character... or him, it pretty heavily implies that Nesmith is sleeping with the actresses playing the green-skinned space babes. Whether his character is also sleeping with the green-skinned space babes is sort of irrelevant at that moment.
- In a deleted scene, two of Seras's goons hit on Gwen. She unzips the top of her suit (that's why it's open for the rest of the movies)... and then squashes them with a blast door.
- Star Trek (2009):
- Barbarella: The pretty blonde envoy of an Earth that left behind such outdated concepts like violence or physical sex, gets used to both rather quickly after being introduced to them on a more... uhm, anarchic planet. She doesn't decline to try other things too. In one memorable scene, Durand-Durand tries to kill her with his orgasm machine, but she overloads it.
- Interspecies prostitution is mentioned in District 9... with aliens who look like broadly-humanoid shellfish. The protagonist is falsely accused of having contracted an alien STD.
- Early into Clerks II, in Jay and Silent Bob's first scene, Jay talks about this.
- Before Alien: Resurrection was released in theaters, there were rumors of a sex scene between Ripley and an alien. Sigourney Weaver, when reached for comment, said "No. That's Alien 5." There was however one scene of Ripley being carried by an Alien that played with the subtext. The studio wanted to cut it because of the implications, but Weaver refused.
- In Men in Black II, an entire subsection of the plot focuses on J discovering that Lara is a Zarthan yet still being in love with her. It is also heavily implied that K had a fling with her mother. The series as a whole seems to enjoy playing with these ideas.
- Jake in Avatar. Justified, considering the fact that one, it took quite some time to get to that particular point, and two, he was in his Na'vi body.
- Implied to have happened between two nebbishy humans and two female Killer Klowns from Outer Space.
- Parodied in My Stepmother Is An Alien with Celeste, who is a gorgeous Human Alien, arriving to Earth to investigate the source of the signal that has damaged her planet. Her race is extremely logical and pragmatic, having gotten rid of emotions long ago. She starts dating the scientist, who has sent the signal, and, eventually, things lead into the bedroom. The problem? She has no idea what sex is. When she asks her talking purse, the purse looks up the term in the dictionary, but the appropriate definition has been redacted. The purse then finds some "instructional videos" (Celeste comments that this Debbie is a busy woman), horrifying the alien female. She resolves to go through with it for the mission and is surprised to find it very pleasurable, asking her partner why they're only doing this now instead of all along. At the end of the film, after she ends up marrying him, her brother-in-law ends up leaving on the spaceship sent to pick her up in order to teach the aliens about human emotions. Given that the all-female crew of the ship is extremely attractive, the guy will have a lot of fun teaching them about this trope.
- Ringworld: The common method of demonstrating your peaceful intentions with whomever you happen to run across is to have sex with them, also known as Rishathra. Made easier on a world where just about every race encountered is a far-evolved subspecies of humankind. Also used as birth control since the various species are no longer closely enough related to produce children. The first people they meet in the second novel reveal they're incapable of Rishathra. Both Louis and Teela end up doing it with Ringworlders. One of the reasons Halrloprillalar wants to leave Ringworld and go to Earth with Louis is because she thinks that humans know very little about sex (she's a professionally-trained ship's whore).
- John Carter of Mars: John Carter and the title character of Edgar Rice Burroughs's A Princess of Mars. Of course the Martians are divided into monstrous four-armed Green Martians and heavily-tanned-human Red Martians. Guess which one the Princess is! (Although she does still lay eggs, raising some unanswered biological questions...)
- Inverted in Octavia Butler's Xenogenesis series, where it's the aliens that want to crossbreed with the humans and every other race they come across. Given that they're all passive-aggressive tentacle-covered anemone-like things, this takes some work.
- Deconstructed in James Tiptree, Jr's story, And I Awoke and Found Me Here on the Cold Hill's Side as just a trashy form of sex tourism that only perverted aliens indulge in, as part of their exploitation of Earth for its resources.
- Used in Erich von Daniken's nominally nonfiction Chariots of the Gods to argue that Boldly Coming is obviously the first thing we'd be doing if we were traveling to unknown planets. The Ancient Astronauts just thought of it first.
- Subverted in The Gods of Xuma, where the human explorers discover, with some frustration, that those good-looking humanoid aliens aren't "mechanically" compatible.
- Foundation: Technically Golan Trevize, except that all planets are inhabited by humans. Though if you think about the breadth of cultural and political differences between the humans on the various Foundation worlds, the trope probably does hold.
Golan: Erotomaniac? Come, Bliss. Twice on this entire trip. Twice!
Bliss: We were only on two worlds that had functioning human females on them. Two out of two, and we had only been a few hours on each.
- This trope is definitely Older Than Feudalism; in Lucian's True History, some of the narrator's traveling companions have sex with tree-women on a remote island, and end up stuck to them.
- Not uncommon in L. Sprague de Camp's Viagens Interplanetarias setting, which was deliberately constructed to allow Planetary Romance type stories with somewhat harder science. In The Hostage of Zir, one of the characters comments that The Bible forbids fornication, sex with a human you're not married to, and bestiality, sex with a dumb animal, but it says not a word about fun with a Green-Skinned Space Babe on the planet Zarathustra.
- Played with in Alan Dean Foster's Humanx Commonwealth series, novel Bloodhype, in which the rather promiscuous Kitten Kai-Sung has some fun squicking out her companions by describing in some detail the ways to accomplish this with various sentient species.
- In Mike Resnick's The Outpost, Magnificent Bastard Hurricane Smith, one of the galaxy's top bounty hunters, has this trope has his main passion in life. He's already had five ex/late-wives, all different alien species, as he finds human women to "all look the same". After he and his fellow bounty hunters help save the galactic human Democracy from a genocidal alien invasion, he is last seen in romantic pursuit of a sentient spaceship (with female A.I.), as he rebounds from the death-in-battle of his last wife, an insectoid shapeshifter.
- Sister Alice has Lyman Chamberlain, who Really Gets Around with the huge variety of Human Subspecies residing on Earth. The protagonist, Ord, recalls stumbles on him trying to get it on with a cetacean-esque human adapted for deep-sea life.
- In Piers Anthony's Cluster series, powerful Ancient structures are often activated by creatures with strong Kirlian auras having sex in or on them.
- Citizens of The Culture are genofixed to be genetically compatible with most humanoid species. Their genitals are also modified for increased ability to sustain a climax, which leads to all sorts of rumours and envy among other civilizations. Having a dedicated gland for secreting all kinds of mind-altering substances for personal use also helps to get into the mood.
- Animorphs has a variation. Tobias's parents were a human named Loren and an Andalite named Elfangor. However, the variation is that Elfangor was in human morph at the time, so they were able to have sex the usual human way.
- Scott Adams pointed out the inherent issues with this in The Dilbert Future.
Me: May I touch that?
Alien: That is not an erogenous zone. It is a separate corporeal being that has been attached to my body for six hundred years.
Me: It's cute. I wonder if it would let me have sex with it.
Alien: That's exactly what I said six hundred years ago.
- Deconstructed in Spar, a 2009 short story by Kij Johnson. After the destruction of her spacecraft, a human woman is trapped in a lifeboat with a Starfish Alien survivor, and they have squick-inducing sex simply because there's nothing else to do. Worse, she has no means of communicating with the alien, so never discovers if the act has any meaning for it; or even if she's having sex with a sentient alien at all and not just their equivalent of the houseplant.
- Star Trek:
Beyond the brim of the star light,
- Averted by Star Trek: The Original Series. While Captain Kirk fell in love with a new person weekly, and there were quite a lot of interspecies kisses, the writers only made it clear he'd had sex on two occasions: once, a native wife became pregnant, and once the show returned from commercial to find a woman brushing her hair in his room while he put his boots back on. There are numerous examples of interspecies reproduction (Spock being the most famous example) throughout the franchise, however, so apparently quite a few individuals boldly came.
- From the rarely-heard lyrics to the original Star Trek theme:
My love is wandering in star flight.
I know he'll find in star-clustered reaches,
Love, strange love a star-woman teaches.
- In Star Trek: The Next Generation, this practically seemed to be a part of Commander Riker's official job description as First Officer...
Riker: The things I do for Starfleet.
- In the episode "Angel One", Riker dresses up in chest-baring native garb and goes off to score with the head-of-state of the titular planet, claiming it is part of the "diplomatic" aspect of their mission.
- In the episode "First Contact", Riker gets an...ahem, offer to help him escape a hospital facility from a nurse in exchange for wild alien sex. According to Word of God, this is intended as a parody of Trek fandom.
Klingon Officer: They want to know how you would endure.
- Again in the episode "A Matter of Honor". Participating in a officer exchange program, Riker signed on to a Klingon vessel, the crew of which subjects him to a rather unusual Secret Test: seeing how he reacts to two female shipmates openly flirting with him. (He passes.)
Riker: Endure what?
Klingon Officer: Them.
(Riker gives the females an appraising look)
Riker: One, or both?
(The Klingons burst out laughing)
- In "The Outcast", Riker almost boldly goes where even James T. Kirk had never gone before, entering into whirlwind romance with an androgynous alien.
- On Star Trek: Deep Space Nine, Chief O'Brien was forced to work alongside a pompous Cardassian engineer. The two bicker and bicker and bicker until, finally, the female engineer comes on to O'Brien and drops an anvil of a pick-up line on him: "I'm very fertile." Apparently, Cardassian women are turned on by argumentative males.
- A major plot point of Star Trek: Voyager Season One is a disguised Cardassian agent who sleeps her way to the top of Chakotay's ranks.
- In "The Disease", Harry Kim falls for an alien babe and ends up catching something (and no, it's not Space Clap). Turns out there are Starfleet regulations that say you've got to clear this with your ship's doctor first. Given the popular view of Captain Kirk this led to fan accusations of Series Continuity Error, though it could easily be justified as the regulation having been made as a result of those Original Series crews shagging their way across the galaxy, filling it with Human Aliens.
- Smallville. Technically when anyone had sex with Clark, Zod, or any other Kryptonians.
- The Big Bang Theory pointed out the ludicrousness of this trope:
Raj: No alien lady ever said "get your thing out of my nose".
- Doctor Who:
- It's established that by Capt. Jack Harkness' time (the 51st century) this is humanity's attitude to space exploration. Of course, they're also more flexible about the genders involved.
- The Classic series had its examples of companions using time and space to shag various historical people and aliens, too — Barbara was (by Word of God) banging the Thal Alydon offscreen in "The Daleks", and a possible reading of the scene at the end of "The Massacre" where Steven theorises that Dodo is a descendent of Anne Chaplet is that he's also theorising that he is one of her ancestors....
- Battlestar Galactica:
- It has this in the series finale. Upon finding human natives on the planet Kara led them to, the first thing Gaius Baltar talks about is their genetic compatibility with the Colonials. Adama does not let this go without a Lampshade Hanging at Baltar's expense.
- Speaking of Battlestar Galactica, are there any characters on that show that didn't boldly come? Gaius did anything with a vagina and a pulse, Chief Tyrol married Callie, Helo nailed Boomer, the guy that Starbuck married eventually turned out to be a Cylon, Tigh's wife was sometimes accused of being a slut... hell, even Admiral Cain (!) got some robot Girls Love in Razor.
- Ladies and gentlemen, I present the Frakmap
- Stargate Atlantis: John Sheppard has a reputation for this, usually involving collective eye-rolling by the rest of the characters. In the episode "Sanctuary", Rodney accuses him of "the Captain Kirk routine" of "romancing the alien priestess", and calls it "very 1967".
McKay: (channelling his inner McCoy, no doubt) Oh my God, he is Kirk.
- Although, when you watch more closely, it becomes obvious that he's rarely interested in anything beyond flirting and nine times out of ten he isn't the one who initiates things. Sure, he gets hit on a lot, but when you count it up over five seasons he only went as far as kissing four women and there's little evidence that he actually slept with any of these women in question. (In one case an alien princess strips for him and his reaction is a very bewildered "I did not see this coming" which is as far from Boldly Coming as you can get.) In fact by the end of the series he's the only major character not with someone. So this is more of an Informed Attribute than an actual character trait.
- Stargate SG-1:
- Jack O'Neill and Daniel Jackson both had a few off-world lovers on Stargate SG-1. Note that examples from the Stargate-verse are more justified than in many fictional works, since almost all aliens in the series are Transplanted Humans.
Col. O'Neill: Daniel, you dog, you keep this up, you'll have a girl on every planet.
- And the truly alien beings (Unas, Asgard, etc) generally have as little interest in sex with humans as the humans do with them. Though given the nature of the show, most of the people are government officials, military, or otherwise high in status so any sort of hanky-panky would have to be very discreet to avoid... problems.
- Jack O'Neill and Daniel Jackson both had a few off-world lovers on Stargate SG-1. Note that examples from the Stargate-verse are more justified than in many fictional works, since almost all aliens in the series are Transplanted Humans.
- Babylon 5:
- Captain Sheridan marries and has a child with Delenn, a Minbari.
- An episode subverted this trope with Ivanova, who did not want to have sex with an alien diplomat whose species uses the act to finalize business negotiations. Because the alien actually had no idea how humans mated, she she managed to trick him into thinking that a firm handshake and a weird dance was the human way to do it.
- The one who was Boldly Coming was G'Kar, who in the earlier seasons would have sex with anything that had compatible genitals (apparently including humans). He also slept with one of Londo's wives. Since humans and Centauri are more or less incompatiblenote , he apparently didn't feel limited by mere anatomical details. Technology is a wonderful thing.
- A scene (originally deleted) from the pilot movie indicates that there are guidelines restricting with which species humans are permitted to have sex. Speciesist? Maybe. But there are reasons...
Commander Sinclair: I wouldn't. You know the rules about crossing species. Stick with the list.
Man: What are you, a bigot or something?
Sinclair: No. But obviously you've never met an Arnassian before. After they finish, they eat their mate.
- The short-lived Babylon 5 sequel Crusade reveals that human-Pak'ma'ra porn exists. Also, certain creatures living in hyperspace may try to mate with passing starships. According to J. Michael Straczynski, one of the Executive Meddling demands for the series that he turned down was a demand for the introduction of a "sexual explorer" character whose official job would be this.
- This is a large part of the Stephen Spielberg miniseries Taken, with the aliens breeding with humans to eventually create Ali.
- In the backstory of Tracker — most recently, Mel's grandparents.
- Red Dwarf:
- Averted (in the nick of time) during the sixth series when Lister is forced to marry a GELF in exchange for a part needed to repair their ship. While his new orangutan-like bride seems very eager to consummate their marriage Lister resists as best he can before escaping under the pretence of needing to "slip into something more comfortable... it's called Starbug." This episode's basic plot was adapted for the third volume of the novel 'verse, Last Human. It took a very different approach in keeping with the generally Darker and Edgier tone of the books.
- While neither Rimmer or the Cat have actually done this, they both express interest in doing so; Cat (a humanoid evolved from a housecat) conjures up Marilyn Monroe (as well as a reverse mermaid with the fish part on top) to date in the Total Immersion Video Game. Rimmer fantasizes about meeting aliens, and is very intrigued at the possibility of females with more breasts than is the norm.
- Brought up briefly in The Thin Blue Line during the briefing in "Ism Ism Ism".
- The "bodily fluid" problem is a real one in Alien Nation, as the Newcomers' flesh is corroded by salty water, and they are a lot stronger than humans. There are even formal classes would-be romantic partners can take in order to learn how to successfully copulate with each other. (In the sense the two participants safely achieve mutual satisfaction.} Played for Laughs when the male cop dating a Newcomer woman doesn't want to take the classes, and she, er, demonstrates their necessity. He comes into work the next day with a very specific neck injury, which his Newcomer co-workers immediately recognize the source of (and remedy for).
- Hyperdrive. Hilariously spoofed in the compulsory Instructional Film the crew has to watch before a First Contact mission. We don't see it (fortunately) but the crews' reactions to what they are watching show it would make even Kirk think twice.
"Let's learn about another Alien Sex Disease. This crewmember had intercourse with a Glygonthian octopoid. Let's take a close look at his genitals. Pustules have developed, and on the pustules: warts. Soon, his entire groin explodes, leaving five baby octopoids, each with his face. Remember, Alien Sex is Danger Sex."
- In First Wave, Gua infiltrators frequently use sex to achieve their goals. However, the show never actually shows us true Gua. All we see are Half-Human Hybrid husks with Gua minds downloaded into them. Presumably, they're engineered to be compatible with humans. To their delight, human sex is very pleasurable, unlike the very painful Gua sex, so they are all to happy to "sleep their way to the top". Also, they deliberately engineer most of their husks to be attractive. However, most humans have no idea they're actually having sex with an alien.
- In the sci-fi parody Quark, Ficus is ordered to seduce Libido so our heroes can escape. Turns out Vegetons mate by lying on their back with their limbs in the air.
Libido: What now?Ficus: It's simple. We wait for the bee.
- They Might Be Giants: The entire plot of the song "For Science" by exactly who you'd think would write a song about that.
- Also the entire plot of the song "Rishathra" by filk band Ookla The Mok.
- "E.T." by Katy Perry, especially the version with Kanye West.
Kanye: Tell me what's next, alien sex
I'mma disrobe you, then I'mma probe you
See I abducted you
So I tell you what to do!
- Heavily implied in the Star Trek Pinball table "To Boldly Go", where the playfield is dominated by a leering James Kirk surrounded by a half-dozen wary women.
- The Coalition (a group of alien species) are another reverse example, as their goal is the acquisition of fresh genetic material... including through sex. They rape the human first contact team to death, try to do the same to the group that comes to check what happened to said team and are later observed doing it to a native alien population on a planet they've just taken control of.
- The d20 version plays it straighter, with sexual contact considered a normal method of interaction between species in the Coalition's home region of space. The human first contact team gets raped to death unintentionally, but second contact goes well, with no sexual interaction.
- Mass Effect:
- The exotophilia, near-universal biological compatibility, and empathy of asari probably smoothed out first contact with the salarians to no end. And the turians, later. And the humans. And the krogan. And then, and then, and then.... In fact, inter-asari relationships producing children are discouraged and the children of such relationships are given the slur "purebloods". "Pureblood" asari have a small chance of turning out to be Ardat-Yakshi. It's mentioned in flavor text for Tevura that asari have always been exogamous, traveling far from their origins to find mates in order to prevent inbreeding. This makes anti-pureblood sentiment and preference for nonasari look a lot like aversion to incest, and raises the question of whether Ardat-Yakshi parents tend to be related.
- The series actually deconstructs this trope somewhat. Not only is alien fetishism a frequent topic of discussion within the game's universe (and not just from a human's perspective), but many pairings have to be careful not to poison each other with their bodily fluids during sex, as Mordin points out should Shepard enter a relationship with Garrus.
- Yeoman Kelly Chambers wholeheartedly endorses the boldly coming approach.
Kelly: [...]intimacy brings understanding.
- Even the Illusive Man, Human Supremacist Supreme, isn't exempt from this trope. Amongst the data the Shadow Broker keeps on him is a list of TIM's Sexual Liasons. There are a lot of human supermodels and an Asari Matriarch (twice). Averted in the case of his minion Kai Leng, who in the books finds all aliens physically repulsive and considers the Asari "whorish".
- Grayson, one of the major protagonists of the Mass Effect book series, takes an asari lover in the third book and, after a particularly wild night with her, wonders how he would ever go back to humans. Also, keep in mind that this coming from a man who once actively hated aliens.
- After Shepard and Grunt (a male krogan) take down a Thresher Maw in the course of the latter's krogan rite of passage, Grunt receives a number of breeding proposals from female krogan... and so does Shepard, even if Shepard is a woman.
- Tali also seems to have a touch of xenophilia; she's a viable love interest for a male Shepard, and if you don't hook up with her, she'll eventually end up in a relationship with Garrus, and during the Citadel DLC she's willing to entertain the possibility of a threesome with herself, female!Shepard, and Garrus. She also notes that an in-universe movie called Fleet and Flotilla, about an inter-species romance between a quarian and a turian, "jumpstarted" her puberty. However, turians and quarians have similar dextro-amino body chemistry; not only can they have sex safely, but they can consume the same food, drink, and drugs, so pairings between the two races are not unusual.
- The existence of the magazine Fornax, a publication dedicated to the finest in interspecies erotica, should tell you how this trope is faring in the Mass Effect universe.
- Javik claims that the Protheans did not "date" other species. They conquered them, enslaved them, sometimes ate them, but did not date them. Except for asari.
- In a case of Reality Ensues, however, Half-Human Hybrids are completely nonexistent, which is understandable given the troubles different pairings have in the first place. Even the asari technically reproduce asexually—a partner is necessary to stimulate her body into pregnancy, but the offspring is purely her own.
- Knights of the Old Republic:
- Over the course of both games, the possible romances include four humans, one Cathar, one Miraluka, and one Echani. (Fandom will also include the Zabrak tech for females...) However, one of the humans in the first game is the only pairing in which sex is confirmed to occur, the Echani looks just like a human (and is half-human anyway), the Miraluka is a human with no eyes.
- Miraluka and Echani are stated to be "near human," close enough to human for mating to work, but there are some genetic and culture differences due to thousands of years of adapting to their native worlds. The Cathar is a Gay Option, and definitely not in the near-human bracket.
- Star Wars: The Old Republic continues this legacy. The player character can be Human/Cyborg, Zabrak, Miraluka, Twi'lek, Mirialan, Rattataki, Sith Pureblood, Chiss, and later Cathar and Togruta. All of these races are Rubber Forehad Aliens at worst, and all possible love interests and one-night stands are from the same set. And no, none of them care which one your character is. They've presumably had millennia to work that out.
- Star Control 2:
- It's possible to do this with Talana, the blue-skinned space babe.
- And the game's ending has the player character settling down with her and having kids.
- It's implied that humans originated on Syra, were transplanted by the Arilou to Earth and genetically-modified for some purpose.
- The Syreen in Star Control are this in general. Their planet was struck by a natural disaster later revealed to not actually be all that natural, and as the all-female Space Patrol were the vast majority of Syreen offplanet at the time, most of the race's survivors are female. They need males of other species (mostly humans) to keep their race going. Mars Needs Women inverted.
- World of Warcraft: For some reason, goblin males find orc women exceptionally hot.
- Destroy All Humans!:
- In the backstory, the Furons arrived on Earth thousands of years ago and did this with the humans, to the point where nowadays, every human being on Earth has some Furon DNA. Later, the Furons return to Earth to harvest the pure, uncontaminated DNA from the humans in order to save their species from radiation-induced sterility.
- Crypto also does this with Natalya at the end of the second game as well as heavily suggested as doing this with an assortment of random women ever since getting his genitalia back.
- The Sims:
- In The Sims 2 and The Sims 3, Sims (and likewise female Sims) can woohoo with aliens of either sex in their neighborhoods or homes.
- Also, if an adult male Sim gets abducted while looking into the telescope, he comes back traumatized and pregnant (definitely, in The Sims 2; possibly, in The Sims 3). Female Sims may come back traumatized, but not pregnant; to get a female Sim to have an alien baby, she either has to Woohoo with a male alien, or use one of the many existing cheats/mods.
- The Sims 3 sims sometimes get a wish to Woohoo with an alien.
- In HuniePop, Celeste Luvendass is a Secret Character for this very purpose.
- Dmitri from Spacetrawler has made it a personal goal to experiment with any alien which is "at least 50% compatible". 50% compatibility covers quite a range of bizarre alien biologies thus far: Shuar is insectoid, Dal has eight stubby limbs and a face full of tentacles, this lady looks like she's part plant, Choan has a worm-like head and gills (albeit with a suspiciously humanoid figure), Haldeyis is an ambulatory glowing barnacle, and he was last seen having a drunken roll in the hay with the Eeb Red-9.
- John the troll from Fairy Dust loved women from most fantasy races available. He counts on them finding him exotic.
- In Loon Land the alien Lana Loon lands on earth and has a close (failed sexual) encounter with the terrestrial loon Mike Moon .
Mike: Hang on! You've got like five holes down here! Which do I poke it in?
Lana: All of them.
- Three Worlds Collide features a First Contact scenario between humans and two other sentient spacefaring species simultaneously. One of these, dubbed "Super Happies", takes this trope and runs with it — all their communication, both among themselves and with other species, is having sex. It seems that evolution decided that, while one transfers genetic information, all sorts of other information might be traded as well.
- Inverted and played straight in a 365 Tommorows story. In this case, the ones having carefree sex are the Sybaris, the alien species that the humans came into contact with. It's played straight by the human delegation to the Sybaris.
- According to SF Debris, this is Starfleet policy:
Captain Picard: Son, as a Starfleet officer, I'm afraid you have no choice but to take that beautiful alien aside, and bone her twelve-ways-from-Sunday. It's part of the duty when you put on that uniform—that you'd have to take it off again to satisfy the endless lust of four-breasted aliens. Make the Federation proud! Make me proud!Tom Paris: Aye, aye, sir, I won't let you down!Picard: Lieutenant? Make it so.
- Zapp Brannigan aspires to do this, but is just so bad at it.
Zapp: We have failed to uphold Brannigan's Law. However, I did make it with a hot alien babe. And in the end, is that not what man has dreamt of since first he looked up at the stars?... Kif, I'm asking you a question.
- Ironic of him to ask Kif that question, since Kif also ended up making it with a hot, alien babe, namely Amy Wong. Which means she filled this trope, too. And so did Leela, when she got Kif pregnant (accidentally; don't ask). In fact, Zapp is the only one of the four who hasn't, despite having built his whole life around trying (he sleeps with Leela, who he thinks is an alien, but she later turns out to be a human mutant).
- If Amazonian women are alien and not just giant humans, then Zapp did make it with a significant number of hot alien babes.
Zapp: Ladies, please, the spirit is willing but the flesh is spongy and bruised.
- Fry as well, to a lesser degree. He's also bad at it, but that's because he's Wrong Genre Savvy. He's been known to mistake mundane (for the future, at least) objects for alien beings. At one point he made out with a radiator, thinking "she" was an alien ambassador from the "Radiator Planet".
Fry: Is there a burn ward within ten feet of here?
- Lrrr, Ruler of the Planet Omicron Perseii VIII, did this accidentally after separating from his wife Ndnd and going through a mid-life crisis. He hooks up with what he takes to be a hot Omicronian woman, but afterwards learns that she was a human in costume (it seems some humans are into this sort of thing), and she thought he was actually a human as well. Lrrr is horrified that he slept with a human, but the girl is still into it.
- Zapp Brannigan aspires to do this, but is just so bad at it.
- Maxwell Tennyson a.k.a. "Grandpa Max" from the Ben 10 series has dated at least one literal green-skinned space babe and later married an Energy Being who is also the mother of his sons and, through them, the grandmother of Ben and Gwen.
- How did Steven Universe come to be? Well, that involves a little story he likes to call "The Ballad of Greg and Rose." It started with a young man playing through his concert like a comet and a mysterious 8-foot tall woman in the audience. He was a talented rocker who wanted to make it big. She was the leader of a group of sentient gem aliens with physical forms made out of light who protected the Earth. Their chance encounter gave birth to a beautiful love and, later, a beautiful son...