History Main / ExtraParentConception

* ''Series/MotherlandFortSalem'': Abigail has three fathers, and not just in the emotional sense. Somehow, each one's best genes were used for conceiving her ([[MysticalPregnancy probably with magic]]). Three is stated to be the average number of fathers for High Atlantic witches.

* Double Subverted in ''Series/EarthFinalConflict''. Liam Kincaid is the result of three biological parents: two human parents and one alien. Agent Sandoval, Agent Beckett and Ha'Gel, who was possessing Sandoval.

* The Newcomers in ''Series/AlienNation''. Tenctonese have three sexes -- male, female, and "binnaum" -- all three of which are necessary to have a child. The binnaum also appears masculine and catalyzes the conception but does not contribute genetically to the child. Because binnaums are relatively rare, they traditionally live monastic lives, only having sex when they are asked to help fertilize an egg for a male/female couple. Once mating has happened, the egg spends sometime in the mother's egg pouch and sometime in the father's egg pouch. One episode dealt with changing social roles as the Newcomers adapted to life on Earth. A binnaum has married a female and seeks the help of "his" male friend in reproducing (IIRC the binnaum was the one to help the male and his wife produce their own children years ago). The male is at first uncomfortable with this non-traditional situation (the male being an absent parent while the binnaum will raise the child), but eventually agrees.

* Exaggerated and Deconstructed in ''Franchise/ANightmareOnElmStreet''. Freddy Krueger is implied to have been conceived this way. His mother was a nun who worked at a mental institution where she became trapped alone with one hundred of the inmates over a period of several nights. [[ChildByRape Freddy was the result]], and became taunted all his life as the "Son of a Hundred Maniacs". Subverted in [[Film/ANightmareOnElmStreet5TheDreamChild the fifth movie]], however: one of the maniacs is shown to [[IdenticalGrandson look exactly like pre-death Freddy]], hinting that this is in fact his biological father.

* It's more cultural in this case than literal, but in the ''[[Literature/HeraldsOfValdemar Vows and Honor]]'' trilogy, Tarma is the [[LastOfHisKind last of her clan]]; the clan can be reborn but it needs a "living core" of blood relatives of the ''old'' clan, and Tarma is sterile. However, her HeterosexualLifePartner Kethry is her [[BloodBrothers oath-sister]] and therefore considered to be of the blood as well, so she's able to help. When she has children they're essentially considered to have three parents and most go on to be part of the renewed clan.

* ''Literature/MerryGentry'': Merry eventually gets pregnant with twins, and the twins have three fathers each.

* ''Film/TheHitchhikersGuideToTheGalaxy2005'': The film adaptation has Ford and Zaphod sharing three of their mothers.

* Parodied in ''Radio/TheHitchHikersGuideToTheGalaxy1978''. Zaphod Beeblebrox shares three mothers with Ford Prefect (with the implication that there are also mothers they don't share), making them semi-half-cousins.

* Parodied in ''Franchise/TheHitchHikersGuideToTheGalaxy1978''. Zaphod Beeblebrox shares three mothers with Ford Prefect (with the implication that there are also mothers they don't share), making them semi-half-cousins.

* One clade in ''WebOriginal/OrionsArm'' has four genders, three passing on a different type of tissue (plant/animal/technological), and one acting as a womb.

** Amphibiosans, Kif's species, have the [[MisterSeahorse male impregnated]] through skin contact with [[HotSkittyOnWailordAction potentially any species (or sex)]] once they're in love. The genetic parent and the person the Amphibiosan fell in love with need not be the same (Kif was in love with Amy, but impregnated by contact with [[spoiler:Leela]]), though the latter (called the "smizmar") is considered the parent culturally.[[Spoiler: "Children of a Lesser Bog reveals that they're this biologically, as well, since Scruffy's DNA somehow got in there.]]

** Amphibiosans, Kif's species, have the [[MisterSeahorse male impregnated]] through skin contact with [[HotSkittyOnWailordAction potentially any species (or sex)]] once they're in love. The genetic parent and the person the Amphibiosan fell in love with need not be the same (Kif was in love with Amy, but impregnated by contact with [[spoiler:Leela]]), though the latter (called the "smizmar") is considered the parent culturally.

* ''Fanfic/LastChildOfKrypton'': In the redux, when Yui Ikari tinkered with the alien rocket, the ship's devices grafted a sampling of Kryptonian genetic onto her fetus' while Shinji was in her womb, giving him an extra set of chromosomes and a huge array of powers when he grew up.
* In the ''Manga/{{Naruto}}'', ''Literature/PercyJacksonAndTheOlympians'', ''VideoGame/MonsterHunter'' and (later) ''VideoGame/ChronoCross'' crossover [[https://www.fanfiction.net/s/11782922/1/ Hunter With a Divine Third]], Naruto is born with the divine help of Artemis, who blessed his mother's womb. That somehow makes him be a third divine (thus the name of the story).

* It's more cultural in this case than literal, but in the ''[[Literature/HeraldsOfValdemar Vows and Honor]]'' trilogy, Tarma is the [[LastOfHisKind last of her clan]]; the clan can be reborn but it needs a "living core" of blood relatives of the ''old'' clan, and Tarma is sterile. However, her HeterosexualLifePartner Kethry is her [[BloodBrother oath-sister]] and therefore considered to be of the blood as well, so she's able to help. When she has children they're essentially considered to have three parents and most go on to be part of the renewed clan.

* Invoked in the ''WesternAnimation/JusticeLeagueUnlimited'' finale "Epilogue": it is revealed that Terry [=McGinnis=] is more than just the son of Warren and Mary [=McGinnis=], but [[spoiler: the biological son of Bruce Wayne thanks to Amanda Waller of CADMUS's secret acquisition of Wayne's DNA in an attempt to create a new Batman. Waller had Warren injected with Wayne DNA while claiming it was a flu shot. That injection overwrote Warren's reproductive genes. This last-minute {{Retcon}} actually helps explain why Terry, and by extension his younger brother, Matt, have black hair while Warren and Mary have red hair, when genetically their children should have been red haired too]].
* In ''WesternAnimation/TheSimpsons'', Moe Szyslak is implied to have multiple fathers. In the episode "Moe Goes From Rags To Riches", it is shown that his father is a Yeti. However, in "Walking Big And Tall", a flashback shows a young Moe with a man resembling him. And in "Springfield Up" he claims "My dad was a circus freak, but my mom don't remember which one. I like to think it was a little bit of all of them."

* It's not unheard of for same-sex couples wanting biological children to seek help from an opposite-sex relative, preferably a sibling, to ensure that the baby is related to both parents. The simplest example, mentioned in the film section above, is for a lesbian to ask her brother to be a sperm-donor for her wife, but there's at least one story of a mother with a gay son who agreed to be a surrogate for her son-in-law (though headlines scandalized the story for clickbait by implying that she was carrying her ''son's'' baby).

* It's not unheard of for same-sex couples wanting biological children to seek help from an opposite-sex relative, preferably a sibling, to ensure that the baby is related to both parents. The simplest example, mentioned in the film section above, is for a lesbian to ask her brother to be a sperm-donor for her wife, but there's at least one story of a mother with a gay son who agreed to be a surrogate for her son-in-law (though headlines scandalized the story for clickbait by making it sound like she was carrying her ''son's'' baby).

* It's not unheard of for same-sex couples wanting biological children to seek help from an opposite-sex relative, preferably a sibling, to ensure that the baby is related to both parents. The simplest example, mentioned in the film section above, is for a lesbian to ask her brother to be a sperm-donor for her wife, but there's at least one story of a woman who agreed to carry her son-in-law's baby (though headlines scandalized the story for clickbait by making it sound like she was carrying her ''son's'' baby).

* A down-to-earth example happens in ''Film/TheBrokenHeartsClub.'' Dennis' lesbian sister asks him to be a sperm donor for her wife, thus ensuring that the baby is biologically related to both mothers even if one is technically its aunt.

* Franchise/WonderWoman has at times been implied to be the daughter of her mother Hippolyta and ''all'' the goddesses who were involved in her fatherless creation -- Athena, Artemis, Aphrodite, Hestia, and Demeter -- though at other times Hippolyta is her only true parent, and [[ComicBook/WonderWoman1942 originally]] [[HasTwoMommies Hippolyta and Aphrodite]] were the two that created and gave life to her.

* ''Webcomic/MagickChicks'': Melissa finally learns about the circumstances of her birth in chapter 17. Dakota and Anastasia explain how they found out out they were pregnant [[spoiler: [[http://www.magickchicks.com/strips-mc/pickles_and_ice_cream during the time they were merged into one]]]]. Neither knows who her father could be, since Dakota had slept with her old partner and Anastasia's [[spoiler: former position]] [[http://www.magickchicks.com/strips-mc/super-fetus got her a lot of nookie.]] Which lead them to speculate that either, or ''[[HasTwoMommies both of them]]'', may have been pregnant without realizing it. It's even possible that Melissa [[spoiler: may have been created by whatever fused them]], considering Anastasia and Dakota returned to normal [[http://www.magickchicks.com/strips-mc/messing_with_me once the umbilical cord was cut.]]

Compare BizarreAlienSexes and HasTwoMommies. Compare and contrast HomosexualReproduction. Inverse Trope to TrulySingleParent.

* A metaphorical example occurs in the DistantFinale of ''LightNovel/TheGardenOfSinners'', ''Mirai Fukuin'': [[spoiler:Mana Ryougi, Shiki and Mikiya's only daughter, refers to her three parents: Shiki as "Mother", Mikiya as "Papa", and SHIKI -- Shiki's [[DeathOfPersonality deceased]] [[MultiGenderedSplitPersonalities male split personality]] -- as "Father".]]

* Given a very dark twist in ''Manga/{{Berserk}}''. After the [[TwoGuysAndAGirl rather complicated relations]] between Griffith, Guts and Casca end with the latter two [[TheyDo getting together]] and unknowingly conceiving a child by completely regular means, a long string of unfortunate events results in Griffith, who had been a bit of a ruthless, possessive psychopath to begin with, being reincarnated as a powerful demon and [[MoralEventHorizon brutally raping Casca just to spite Guts.]] Griffith's "contribution" ends up corrupting what would have otherwise been a normal baby into a mutated fetus monster of considerable demonic power.

A child is conceived, but instead of simply mixing one male sperm and one female ovum, a third set of genes becomes involved (or more). Most often used in a FreeLoveFuture or as a result of BizarreAlienBiology, a child turns out to be the [[MixAndMatchMan genetic offspring of multiple people]] -- except, it was ''natural conception''. Perhaps we're dealing with [[BoldlyComing aliens]] or [[DivineParentage supernatural beings]] and it's normal for them to conceive children this way. Or maybe, this was just some freak occurrence which took ''everybody'' by surprise. However it went down, [[CoitusEnsues Mass-Coitus Ensued]] and a baby happened. May be related to {{Polyamory}} or occur during APartyAlsoKnownAsAnOrgy. The situation may [[{{Pun}} conceive]] AnAesop about such activities.

* Amphibiosans in ''WesternAnimation/{{Futurama}}'', Kif's species, have the [[MisterSeahorse male impregnated]] through skin contact with [[HotSkittyOnWailordAction potentially any species (or sex)]] once they're in love. The genetic parent and the person the Amphibiosan fell in love with need not be the same (Kif was in love with Amy, but impregnated by contact with [[spoiler:Leela]]), though the latter (called the "smizmar") is considered the parent culturally.