"Open relationships are not nearly as socially accepted as they were in the 1960s and 1970s, at the peak of the sexual revolution. But they do work for some couples, provided there's a tremendous amount of trust and commitment."Rather than requiring someone to pick one person out of several potential love interests, or have a Your Cheating Heart situation, all parties involved agree to be together and share cooperatively. This typically lacks any drama of the decision itself, but has a different form of drama in how people make arrangements with each other, manage jealousy and households, and deal with the disapproval of society as a whole. Individuals who identify as polyamorous may consider themselves "Ethical Sluts". Not all ethical sluts are polyamorous, and not all people in polyamorous relationships have the "ethical slut" attitude. The difference between a polyamorist and a swinger is that a polyamorous person has broad-spectrum involvement in their partners' lives, including love. Swingers are largely there for the sex, often for the novelty of an unfamiliar partner. If it's just sex, not full-on relationships with more than two, it's Three-Way Sex. Compare Marry Them All. Contrast No Romantic Resolution. The Love Triangle or Love Dodecahedron can develop into this. When a foreign or alien culture is particularly accepting of this, you may get Exotic Extended Marriage. See Threesome Subtext for when this is hinted in canon, and One True Threesome for Shipping examples. Not to be confused with Polyarmory. May develop into a case of the Supporting Harem if one partner receives preferential treatment over the others. For more details and some Real Life tidbits, visit Useful Notes On Polyamory. Truth in Television, obviously, though how culturally accepted it is varies wildly depending on the place, time period, and social standing.
— Dr. Laura Berman and Dr. Jennifer Berman, For Women Only: A Revolutionary Guide to Reclaiming Your Sex Life
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Anime & Manga
- Cross Marian may be a practitioner of this. He has many lovers. We met one—Anita, and heard of another, which was her mother. Both seemed to love him, and want to help him. They support the Dark Order just to do something for him. He is apparently a good lover, and he seems chivalrous in general when it comes to women. He hates the Order, and has been hiding from them for 4 years, but stayed because Lenalee asked him to, which exposed his Fatal Flaw, Earlier he protected Lenalee on the crumbling ark. Word of God states he likes "good women." Apparently, he cares for his lovers outside of sex, otherwise, whether, or not, they're good women probably wouldn't matter. And he isn't unethical about it, as Word of God lists his dislikes as "dirty bastards." Allen states that Cross lives with, and off of, lovers in different places. So, apparently, it's not just Anita and her mother that care enough to do things for him. Anita and her mom were also prostitutes, but Cross stated the former as a good woman when he finds out she's been killed.
- Also, a scene in Jump SQ seems to hint at this. Allen visits Mother and Ba Ba's house, and he says underneath Cross' bed is filled with things he got from his lovers. We see, in his room in chapter 167, he has at least five pictures on his shelves, possibly pix of some of his lovers. So he apparently hangs on to things his lovers let him have.
- Done with after the credits in the anime's Gecko Ending—Chizuru wins, and Nozomu is Put on a Bus… but wait, she returns after the credits and they decide to share Kouta. Which kinda sucks for him, as both of them are extremely oversexed yōkai (Japanese demons), and he's mostly Asexual. Of course, he doesn't get a say in the matter.
- It's also done part way through the manga, where after Kouta tells Nozomu he loves Chizuru, she leaves… then immediately comes back and declares herself his lover. Chizuru's reaction is basically "Gah, whatever, I'm still number one." However, while Kouta's opinion is not asked initially (like the anime) he later declares he loves them both and is going to be faithful to them both and no one else.
- A proposed solution in Girl×Girl×Boy although it gets rejected in the end.
- Her Royal Majesty Iono from Iono the Fanatics somehow manages to be in a romantic relationship with an entire kingdom worth of Schoolgirl Lesbians. And satisfy them all. Unless, of course, she is traveling abroad, in which case her paramours start a civil war, with one fraction believing in her eventual return and the other striving to bring her back by force.
- The last chapter of To Love-Ru hints that this might be a viable option for Rito; at the very least, Lala is enthusiastic about to the point that it seems to be her preferred option. In the sequel, To Love-Ru Darkness, one of the girls tries to open up this route (Lala approves), and is only hindered by Rito's belief in monogamy.
- Mahou Sensei Negima!:
- Maoyuu Maou Yuusha, while not flat out stated that the three are romantically involved together, the fact that the Light Novels end with The Hero, The Demon Queen and Lady Knight deciding to retire and leave together, with no one else in tow, to live in some faraway place in peace, sure says something, especially since both girls had previously come into terms that they love The Hero.
- Naze Turbine of Mobile Suit Gundam: Iron-Blooded Orphans has a Cool Starship, which is entirely crewed by his harem. All of the women appear to be okay with the arrangement, to the point that children are communally raised. We are shown five very young kids on board the ship, each from different mothers, and it's mentioned that Naze has more, older children back on the space colony he calls home.
- Rosario + Vampire, where the entire harem wants this situation… except for the first girl, who doesn't want to share (though said girl is two for the price of one and might count just by herself). The boy hasn't made his views known.
- Marmalade Boy: Jin and Rumi Koishikawa, and Youji and Chiyako Matsura (later Jin and Chiyako Koishikawa, and Youji and Rumi Matsura) seem to hint at this. Swapping spouses is one thing; all moving into the same house together and spending all their free time together… awfully suggestive.
- Tenchi Muyo!: Seina slips into this trope at the end via a Marry Them All resolution, though it still has the feel of the former, and Word of God says Tenchi himself fits this trope. In both cases, it helps that they're in line for the throne of Jurai (Tenchi being the Crown Prince), a position that, as far as we can see, traditionally comes with multiple wives (the current one has two). It also helps that the Jurian equivalent of the Queen Mother fancies herself a matchmaker, is a master of The Plan, and seems to prefer this outcome.
- Word of God shows this also happens between Seina's oldest son and Ryoko and Ayeka's daughters.
- Dual! Parallel Trouble Adventure: An Alternate Universe of Tenchi Muyo from the same creator, Kazuki Yosuga likewised ends up with all four of his romantic interests in a 3rd new reality, created by combining the previous 2 parallel worlds. The twist? It was created by the will of the formerly Clingy Jealous Girl Mizuki S. when she realized that Kazuki loved all of them equally.
- Rokujo Chikage, Durarara!!'s resident Ethical Slut and Chivalrous Pervert, is happy to be with any girl that doesn't mind sharing. The series introduces him dating eight girls at once.
Girlfriend 1: Why are we dating such a playboy again?
Girlfriend 2: Because it's one of our weird hobbies.
- Sayonara, Zetsubou-Sensei has a rather complicated example of this. Nozomu loves the First Girl, Fuura Kafuka. However, it's revealed in the final chapters that she was Dead All Along. Her organs, however, went to the girls in Nozomu's class, causing him to see her in his students one at a time. (As his sister Rin puts it, he's in love with her corneas-in Abiru-then her lungs-in Komori-then her heart-in Chiri.) On paper, he's in an endless cycle of marriage and divorce between the girls. In Nozomu's eyes, he's married to Kafuka and Kafuka alone. To outsiders, it looks like this trope, especially since all the girls have children by him (that eerily look like Kafuka).
- High School D×D is based around this trope. Initially set up as a traditional Harem Series, it deviates from the norm because none of the girls care that the others like him too. In fact, several of them actively help the others get closer to Issei, culminating in the rest of the harem helping Issei and Rias become an Official Couple. At least two of them stated they were waiting for this to happen before they went any further with Issei themselves. And for her part, Rias has no problem with polygamy as long as she's number one.
- Used in Anatolia Story, crossing with Twin Threesome Fantasy. Yuri's handmaidens Ryuhi and Shala both like Kail's advisor Kikkuri, and they bed him separately. They both get pregnant. Kikkuri had believed he was sleeping with one of the girls, but instead of "choosing" he marries them both. At the end of the story, the girls have given birth to… twins! (Ryuhi has two boys, Shala has two girls). They all live more or less happily under the same rooftop.
- Pokémon has Brock sing a song about how much he wants this with Jenny and Joy.
- The High School A.U. manga of Tengen Toppa Gurren Lagann features Simon/Nia/Dark Nia in its ending (Dark Nia in this version is a secondary persona/imaginary friend that Nia created from being denied any friends by her overprotective father).
- Psyren has Ageha/Sakurako/Abyss.
- Chocolat/Carrot/Tira was almost canon in Sorcerer Hunters, and some fans still would have preferred that to the manga's actual ending. Then again, Chocolat did end up with Carrot's kids…
- In Haiyore! Nyarko-san Cuuko proposes one between her, Mahiro and Nyarko, after she warms up to Mahiro, suggesting "I bear Nyarko's child, the boy bears mine." Unsurprisingly, neither Nyarko nor Mahiro are really down with this idea.
- Umi no Misaki ends with Nagi and his three girls in this agreement. The epilogue chapters show that the four of them are getting along perfectly well despite the oddity of their relationship.
- While One Piece makes no mention of whether polyamory is legal or not, it is at least known that the pirate Big Mom, one of the Four Emperors, has 46 husbands, with whom she gave birth to 85 children.
- ElfQuest. Many of the elves end up 'lifemating' with two others, and their relationships are generally loving and long-lasting (and in at least three cases, explicitly mentioned as a sane alternative to jealousy and rivalry). Problems tend to arise only with Recognition, a form of 'love'/lust based entirely on involuntary instinct. Examples: Leetah/Cutter/Skywise, Skot/Krim/Pike, and Dewshine/Scouter/Tyleet.
- Strangers in Paradise: Francine, David, Katchoo, Casey, Freddie and even Tambi all alternate between being friends, enemies, sexual partners and various places in between, and also rotate living with each other as one or more of those options. After David reveals to Casey and Katchoo that he is dying, they all (well, most) decide for Katchoo, Casey and David to form a sexual relationship in order to produce a child and because they all do love each other, even though Katchoo only really loves Francine, David only really loves Katchoo, and who Casey really loves is more complicated than even the reader thinks at the time. Once David dies the series settles down into Katchoo-Francine and Casey-Tambi (!?!?!?!?!?), though even then David sticks with both pairs in spirit and via his child with Katchoo.
- A DC Elseworlds story, "Superman/Wonder Woman: Whom Gods Destroy", written by Chris Claremont, is set in a world where Superman made his first public appearance in the 1930s, when he met Lois Lane. Cut to the present day, where Lois Lane and Lana Lang are in their seventies and are very close friends. Despite Superman's presence during WWII, the Nazis are still in power in Germany, due in part to the interference of Ares and several other Greek Gods. Another faction of Greek Gods, led by Artemis and Athena, grant Lois and Lana eternal youth and superpowers (Lana becomes the Oracle of Delphi and Lois becomes Wonder Woman; Diana had turned traitor and joined the Nazis in the interim), and they team with Superman to defeat Ares' faction. Part of Ares' plan is to separate Clark from Lois and Lana, since their powers somehow bind them together. When Lana explains to Superman, "Ares doesn't want the two of you together," (referring to Clark and Lois), Hecate, the Greek witch-goddess, corrects her, "No, the three of you." By the end of the four-issue arc, Clark, Lois and Lana are happily living together in his Fortress of Solitude (the now young Lois changed her name to Lois Lang) in a polyamorous relationship.
- At the very end of Superman: Red Son (an Elseworld), when Lex Luthor uses his genius to turn Earth into a utopia, it's said that the "triple" replaces the "couple" in human relationships.
- In the last issue of the Secret Six ongoing, Scandal Savage decides she can't choose between her girlfriends and proposes to both of them at once.
- A common theme in erotic comic XXXenophile, created by Phil Foglio, (who later went on to do Girl Genius, which also has an entry on this page).
- In League of Extraordinary Gentlemen Century, Mina, Allan, and Orlando are in a somewhat complicated polyamorous relationship. It's complicated because Orlando's a Gender Bender, and Mina doesn't seem to enjoy his company so much when he's male.
- In Demon Knights, Jason Blood and Etrigan are two beings who were magically joined together by Merlin, and who are each married to Madame Xanadu. It sort of works because only one or the other can inhabit the human plane of existence at a given time; the one who isn't on the human plane ends up in Hell during that time.
- The Incredible Hercules establishes that besides being a Casanova that beds any number of women he can, Hercules has several steady girlfriends all over the world. After his death at the end of the series, Venus and Namora find this out when they visit houses or businesses that Hercules has bought or built himself, each of which houses or employs a woman who loves Hercules and is shattered and heartbroken by his passing.
- Thanks to Rei's machinations in Advice And Trust, Kensuke ends up with two girlfriends (it was the girl's idea). Shinji/Asuka/Rei (better known as the "Israfel Special") is teased, but Shinji and Asuka don't feel that they could handle it.
- Doing It Right This Time: After returning to the past, Shinji, Asuka and Rei are so sick of and fed up with angst, pain, misunderstandings and heart-breaks that they—including Asuka, who had formerly declared, "If I can't have [Shinji] all to myself, then I'd rather not have [Shinji] at all,"—decide the best way to resolve their Love Triangle is sharing each other.
"How does someone as naturally clingy and possessive as me successfully practice polyamory, you mean?" Asuka smirked. "Easy. I'm clingy and possessive of both of them."
- Poly seems to be a normal state of affairs in the universe of On a Clear Day You Can See Forever; that doesn't stop there from being issues of jealousy and insecurity, however. Mamoru is not terribly happy about Usagi's affections for her senshi, especially Rei, but he also knows that he has no right to deny them. For poor Ranma, from another world entirely, the concept of sharing is even harder to deal with.
- The Epilogue of I Am What I Am has this, but with a twist. Xander (who has the memories of his entire life up to his death which he has been using to alter and improve things) is now with Buffy AND Faith and it's heavily implied that all three are sharing the other two (no sex yet, though).
- In Kyon: Big Damn Hero, Kyon's uncle Keiichi arranges this with his aunts. Also, Haruhi is working towards this with Kyon and all females of SOS Brigade.
- In "Time Braid", Sakura, Hinata and Naruto eventually get to the point where all three are romantically involved, though Sakura does state that it takes effort to make their relationship work.
- Here In My Arms in the Rosario + Vampire fandom goes this way for the full set of "haremettes".
- In Strangetown, Here We Come, the main trio eventually end up like this with Ripp and Johnny both going out with Ophelia, and before the fic died it was implied that Johnny and Ripp might start going out as well—Ripp was canonically interested, and Johnny at least had a whole lot of Ho Yay on his side.
- Hands: The Love Triangle between Andrew, Twilight, and Fluttershy eventually evolves into this, as the girls are willing to share Andrew if it means not fighting over him anymore.
- Xenophilia, whose author has obviously gone to some trouble to research actual real-life herd behaviour, suggests that this is actually the norm in Equestria due to the relative rarity of male ponies.
- In the first chapter of the Doctor Who fanfic "Come And Knock On Our Door" by Maribor (the title is an homage to Three's Company), Amy attempts to seduce the Doctor. When he protests that she's married, she answers, "We talked. He's on board." The story, along with the sequel "Man About the House" explore the Doctor, Amy and Rory in a polyamorous relationship and impending parenthood (the Doctor is able to help Amy conceive despite her inability to have children, as mentioned in "Asylum of the Daleks").
- Maribor's "Epistolary", which follows Amy and Rory's lives after they were stranded in the past after "The Angels Take Manhattan", also implies an 11/Amy/Rory relationship existed in flashback scenes.
- In the Frozen fanfic Sorry About The Mess, this is how the trolls view marriage and relationships in general, with wives having multiple husbands while any one of those husbands may have multiple other wives as well. Kristoff says that for a time he had five fathers and three mothers.
- This is the whole premise behind Relationships Series.
- Red Dead Virgo has Aradia/Sollux/Feferi. Maybe.
- The Kim Possible fanfic "Vacation From The Norm" ends with Kim, Ron and Shego in a triad relationship. At the end of the first book, Kim is in love with both Ron and Shego, who are both in love with Kim and happy to share her. During the course of "Vacation From the Norm Bk. 2: Journey of Discovery", Ron admits that he shares Kim's love for Shego, who is slowly coming to fall for Ron as well, making this a true triad.
- Kim, Ron and Shego also enter into a poly relationship in Weirdbard's "Trio" series, which crosses over into various horror movie properties. At the end of the first story, "Frequency of Evil" Kim and Ron confess their love for each other, while Shego realizes she has fallen for Ron. Shego's solution to the problem in the second story, "Trio"? Seduce Kim and convince her of the benefits of a ménage a trois with Ron.
- All residents of the Avengers Tower being in a happy poly relationship seems to be popular in fandom.
- Later chapters in the NCIS fic "Shards to a Whole" explore a growing four-way relationship between Tim and Abby McGee and their friends Jimmy and Breena Palmer. The growing relationship between the two couples evolves slowly, and the four of them do take in the long-term ramifications of their feelings for each other. Abby for the record identifies as bisexual while Tim, Jimmy and Breena identify as straight but willingly invoke If It's You, It's Okay, along with a generous helping of Girl On Girl and/or Guy-on-Guy Is Hot.
- This is a recurring theme in The Dear Sweetie Belle Continuity, apparently common in prior centuries in Equestria, especially among earth ponies, who (according to Celestia) nonetheless led the way in shunning the practice in more recent times. It's still legal, though, so Luna decides to resolve her Love Triangle with Shining Armor and Cadance this way. Cheerilee also suggests it to Big Macintosh, who is far less keen on the idea.
- In Pokémon Reset Bloodlines, Word of God says that Ash will eventually have at least six girlfriends. This will, of course, require a lot of Character Development and soul-searching for everyone involved.
- In A Crown Of Stars, it's offhandedly shown that the Empire of Avalon is accepting of polygamous relationships, evidenced by casually referring to one case of two girls and a guy as a "triad", suggesting that it's relatively common. Near the end of the story, Kensuke gets involved in one when two girls he helped save in South America decide to "share" him rather than fight over him, to his dismay and Asuka's unending amusement.
- Never Be Alone has this form between the Equestria Girlverse CMC, with Apple Bloom and Sweetie Belle inviting Scootaloo into it.
- A major subplot in Code Geass: The Prepared Rebellion is Lelouch slowly but surely getting a harem. He already has both C.C. and Sayoko sharing his bed, with more to come eventually. Considering his father has 108 consorts, it's no surprise that he's not averse to the idea.
- Because of how much mares outnumber stallions in My Little Pony: Friendship Is Magic, many fan works postulate that polygyny is an accepted and widespread practice in Equestria.
- In Ranma Saotome, Chi Master, Nabiki is trying to nurture this type of relationship, one where Ranma marries Akane but keeps her as a mistress.
- Bandits has both the main characters falling for their hostage turned ally. When she is pressed to chose she deliberately chooses "not to chose," and is last seen happily with both of them in Mexico.
- Les Chansons d'Amour: Julie and Ismaël resolve Ismaël's attraction to his coworker Alice by forming a ménage à trois which doesn't survive the first act: when Julie dies, Alice and Ismaël go their separate ways.
- Jules and Jim focuses on a three-way pairing, with an eye to determining whether it can possibly last. In and of itself, polyamory is deemed acceptable, but "pioneers must be humble and unselfish," and jealousy results in a murder-suicide.
- In Vicky Cristina Barcelona, Juan's ex-girlfriend shows up after Cristina is already living with him. Things go from awkward, to tense, to sexy, back to tense, to falling apart entirely.
- Another one from Woody Allen. When Melodie's disapproving mother Marietta shows up in Whatever Works, she goes on to date two men that agree to share her.
- A woman and two men try this in Paint Your Wagon. It sort of works for a while; one of the men eventually departs, not so much because of the triangle, but that the area's becoming too civilized for his taste.
- In Scott Pilgrim vs. The World, Wallace Wells, Scott's gay roomate sleeps with Stacey Pilgrim's boyfriend Jimmy and another nameless guy later on. His boyfriend, 'Other Scott' does not seem to mind as at one point they're all seen sleeping in the same bed together, as well as Scott.
- The play and film Design for Living revolves around the three-way relationship between two (male) best friends who are both in love with the same woman. They try this, but jealousy breaks them up and the woman marries someone else… until she decides that she still loves her boys, and as they want her back, the three of them decide to give it another try.
- In the 1999 TV movie Journey to the Center of the Earth, after arriving to the land beneath the crust, the adventurers encounter a village of humans. Their guide McNiff immediately takes a liking to the local women, who respond to the big man from above. He then sees men glaring at him and finds our they're the women's husbands. Apparently, they practice polygamy. He grins and takes two women to a shack to exchange cultural knowledge. The idea of limiting relationships to only two people seems ridiculous to the locals, one woman asking in disbelief if women from above really like monogamy.
- A Home at the End of the World has the main characters decide to form a family, only for it to eventually break down.
- Dodgeball: A True Underdog Story throws in a love triangle in the last 2 minutes—and promptly goes with this solution.
- The Dutch movie Liever Verliefd ("Preferably In Love") has the main character marrying both of her love interests at the end.
- Played for laughs in The Marx Brothers' Animal Crackers, when Captain Spaulding jokingly proposes to two women at once.
Mrs. Rittenhouse: But that's bigamy.
Captain Spaulding: Yes, and it's big of me too. It's big of all of us. Let's be big for a change.
- Strongly implied at the end of Viridiana. After Letting Her Hair Down, Viridiana, who is obviously very changed by her experiences, enters the bedroom and finds Jorge and his lover Ramona. She sits down at a table with them. Jorge, who has a deck of cards, starts dealing, looks at Viridiana, and says "When I first saw you, I knew that we would end up playing cards."
- Robert A. Heinlein's works feature this heavily, especially as he got farther into his career, which gives it strong overtones of Author Appeal, even though he never commented on whether or not he and his wife Virginia were exclusive. Most of the works in question advance the concept that a truly free individual should not be restricted by cultural taboos in choosing whom or how many to love.
- The Moon Is a Harsh Mistress features protypical matriarchal group marriages—that is, the woman is the dominant partner and has full discretion as to whom or how many men she marries.
- Stranger in a Strange Land has Mike, a human with Martian values, form an entire quasi-cult around the notion of Free Love. Said novel was widely influential in the counterculture of the American 1960s and arguably predicted it.
- Friday starts with the titular protagonist in a group marriage in New Zealand, although they divorce her after she exposes their racist hypocrisy. She later joins a much healthier group marriage.
- Time Enough for Love and all subsequent novels in his "Future History" series feature Lazarus Long's increasingly extended family, designed as a group marriage in which individuals are free to come and go as they please but all are mutually responsible for the maintenance of the household and care of the children. The only restriction on who sleeps with whom is genetic compatibility, and not even then if there is no risk of pregnancy.
- In The Number of the Beast and The Cat Who Walks Through Walls, the protagonists of those novels all eventually fall into Lazarus' polyamory through various circumstances including Time Travel and dimension hopping.
- Anita Blake eventually takes this option with her entire Unwanted Harem.
- As does Merry Gentry in another series by the same author.
- Mendoza, Edward, Alec and Nicholas in The Company Novels.
- Most of the main cast of Diane Duane's Door Into… series. Including the dragon. And the fire elemental.
- Gail Dayton's One Rose Trilogy takes place in a realm where group marriage is the norm.
- In Realm of the Elderlings, Fool told Fitz that he had two fathers and one mother, which was quite common in his land.
- The House of Night has many (sometimes with more than three people) involving Zoey, usually some sort of combination out of Zoey/Erik/Heath/Stark (and sometimes Loren). Zoey/Heath/Stark was a thing for a while.
- The main character Rand al'Thor from the Wheel of Time series, falls in love with three women, who in turn all fall in love with him. Leads to a fair bit of angst until the women decide to share, and put it to Rand as a fait accompli. Slightly averted, as one of the women grew up in a culture where this is
commonunheard of; however, her culture does accept the (still rare) arrangement whereby a man can marry two women who are de facto married to each other as well.
- The hero of With a Single Spell by Lawrence Watt-Evans falls in love and gets married during his quest to win a princess. The king is still insistent about reducing the headcount at his castle, and his wife is very practical.
- Lizzie ends up with both Beardsley twins in the Outlander series.
- In Warren Ellis' Crooked Little Vein, the main love interest is a polyamorist, much to the protagonist's dismay. Originally, at least.
- Some of Octavia Butler's novels involve people ending up in this sort of situation, usually because of Bizarre Alien Biology—which the humans may struggle against before finally giving in. In the series Lilith's Brood a family may involve a human male, a human female, an Oankali male, an Oankali female, and an ooloi. In Fledgling, each vampire keeps a small collection of humans as a family (and a food source).
- In Wen Spencer's A Brother's Price, a plague has left the world seriously gender-skewed, with 5-10 girls born for every boy. The solution for this is for boys to marry all sisters in a family. The hero, of course, goes on on to marry all of the princesses of the realm.
- In Isabel Allende's Eva Luna, male lead Rolf Carlé gets into a relationship like this with two girls that not only are both his lovers, but his cousins as well. It lasts some years, until Rolf leaves the "colony" they live in and goes to the city; there's no ultra dramatic break-up, and the cousins are later Happily Married to local males whereas Rolf becomes an Intrepid Reporter and gets involved with Eva, the female lead.
- Honor Harrington:
- This is the eventual solution when Honor's Second Love turns out to be already married. As mentioned above, it takes some pretty extraordinary people to make this kind of thing work, and fortunately they all are: the man is her former boss, Hamish Alexander, the Earl of White Haven, whose wife Emily is a triplegic who Can't Have Sex, Ever. The whole thing is her idea more than anybody else's, and there's enough Les Yay between her and Honor to suggest that, for them, the marriage is not merely a formality. In the meanwhile, though, there's a lot of wangsting, due to the existing marriage and resulting adultery; not to mention the media circus and political maelstrom that would ensue since all three characters are celebrities.
- Grayson already practices Exotic Extended Marriage (polygyny, as women outnumber men on the planet by three to one), but it's hinted (by Allison Harrington, Honor's mother) that at least some of the women are bisexual, and that, if not openly encouraged, it is at least quietly tolerated.
- Wicked Lovely:
- Leslie, Niall and Irial are all totally cool with their threeway—but not threesome—relationship.
- To a lesser extent, Ani and Rae seem fine with sharing Devlin as well.
- In The Sharing Knife, polyamory is rare, not surprising given the pre-Industrial setting. However, it's not unheard of among the Lakewalkers. When one of the Otter women realizes her husband is sterile, she is urged to divorce him and take another who can give her children. Out of love for him, she refuses. Instead, she chooses a second husband, and all three of them marry each other. Among the Lakewalkers, marriages are proven by magical wedding bracelets. As each of the threesome has two bracelets proving that they are simultaneously married to two different people, there is nothing anyone else can do. The clan eventually gives up trying to break up the threeway marriage, and the children are considered the offspring of all three parents.
- This seems to be pretty common practice in Kushiel's Legacy wherein many people have multiple sexual partners with whom they are in love.
- Older Than Print: In the eighth story of the eighth day of Boccaccio's Decameron, "Two men keep with one another: the one lies with the other's wife: the other, being ware thereof, manages with the aid of his wife to have the one locked in a chest, upon which he then lies with the wife of him that is locked therein." At the end, they call it even and, decide, along with their wives, to live so that "each of the ladies had two husbands, and each of the husbands two wives."
- Bizarre Alien Biology makes this common practice among the Titanides in John Varley's Gaea Trilogy. It's common for their reproductive process to involve three or four individuals' genetic contributions, although one female can self-impregnate.
- In Jennifer Crusie's Crazy For You, the female protagonist's mother is involved with a best friend as well as a husband.
- In Sewer, Gas & Electric, the eco-pirate Dufresne is in a polyamorous relationship with an online journalist and her male-model second boyfriend, complete with threesomes. The model is bisexual and has no problem with this, but Dufresne's own lingering insecurities from an Amish upbringing compel him to wrestle his co-husband into submission each time they meet, offsetting his doubts about his own masculinity.
- This is the resolution to the love triangle between Eric, Beth, and Korendil in Mercedes Lackey's Urban Fantasy A Knight of Ghosts and Shadows. The relationship continues happily throughout the next book, but Eric breaks up with them amicably between books two and three.
- In Nnedi Okorafor's The Shadow Speaker, Sarauniya Jaa has two husbands.
- In the sci-fi Uplift series, some alien species require more than two individuals all mating together in order to reproduce. Among the species with this variety of Bizarre Alien Biology are the Gubru (require one female, one blue male, and one yellow male) and the Brma (require an alpha female, a beta female, an alpha male, and a beta male). It's also becoming popular among humans, possibly because of our uplift of the by no mean monogamous chimps and dolphins. Robert's mother has four husbands for instance.
- In Existence it's briefly mentioned that Hacker has two girlfriends and Gerald is in a group marriage.
- Vonda McIntyre seems to like this: In the Starfarers series, there's at least one married triad (who were previously a tetrad, and almost became one again, but in both cases someone died); in Dreamsnake, it's monogamous characters like Arevin who stand out.
- The sci-fi novel Forget Yourself features polyamory as a major theme, though it is never mentioned by name.
- A Song of Ice and Fire: Aegon the Conqueror was married to both of his sisters; each of them rode one of the three famous Targaryen dragons.
- Other Targaryens (descendants of the conquering triad) also went the poly route… if in very destructive ways that neither Aegon, Visenya nor Rhaenys would have have condoned, thanks to the Stupid Evil ways they went about it. Two consenting wives at once? No problem. But Maegor "the Cruel" had three at once, including kidnapped wives he gambitted into it after killing a couple of others. Um… recipe for disaster, mate. Aegon "the Unworthy" was—at least—"just" The Casanova and Fat Bastard who believed in open relationships on his end (just don't dare cheating on him). Just as catastrophic as Maegor, though.
- It has been suggested than Daenerys reinstate the practice and—Aegon-style (the Conqueror, that is)—get herself a pair of husbands to ride her other two dragons.
- At the end of Michelle Cooper's Fitz Osborne trilogy Toby and Julia have a loving but nonromantic marriage, and both are involved with Simon. This proves to be an ideal solution for them, as it allows Toby to maintain his relationship with Simon while also fulfilling his duties as king; Simon to father the heirs to the throne of Montmaray (to which he was the rightful, but illegitimate heir; yes, he and Toby found out they were secret cousins after they were sleeping together)note ; and Julia to marry on her own terms. The three of them live happily together with their children.
- In The Millennium Trilogy, there is a situation somewhere between this and Friends with Benefits; Mikhael Blomkvist and Erika Berger's inability to stop sleeping with each other led to the failure of his marriage, but Erika's husband doesn't mind her seeing Mikhael, and the two men get on well together. Erika and her husband have experimented with threesomes (though only with other people since Mikhael himself wasn't interested,) and they don't actually live together, but otherwise it works quite similarly to this trope.
- Occurs many places throughout The Bible, making this Older Than Feudalism at least. Many important figures had multiple wives, such as Jacob in the Book of Genesis who marries sisters Leah and Rachel (although the former was thanks to a Bed Trick). In the Books of Kings, David had eight wives and several concubines, in common with most kings of the time. The champion, however, is probably Solomon, who takes it Up to Eleven with 700 wives and 300 concubines! The practice had largely died out by the end of the Old Testament, and the New Testament averts it by teaching more or less straightforwardly that a man should only have one wife.
- Wicked has Frex/Melena/Turtle Heart.
- In the first book of Roberto Bolaño's 2666, "The one about the critics," Espinoza and Pelletier are Heterosexual Life-Partners who are both having casual sex with fellow academic Liz Norton. Both men both love Norton and want their relationship to end up as this. They have Three-Way Sex once but Norton takes a fourth option, so to speak and ends up with their friend Morini.
- The Color Of Distance has Juna mention her failed "group marriage". In the sequel we see that her brother is in a similar marriage and they are commonplace. Often two people are monogamous within the marriage, but in passing a triad consisting of two brothers and a woman is mentioned. The real purpose in group marriages is a sense of family and community, and sharing child rights.
- Mercedes Lackey's Bedlam's Bard ends with two humans and an elf as a happy triad. In the next book they're still living together, but the book after that starts with the human man having split off amicably.
- A growing niche in the Romance Novel genre is the multiple partner relationship and is especially popular in the erotic romance genre.
- Maya Banks's Colters Family series of romance novels are centered around the titular Colter family, in which Holly, the family matriarch, is married to the three Colter brothers. Her sons also continue the poly tradition of being married to the same woman. Oddly enough, her daughter does not get involved in a poly relationship.
- In Warrior Cats, Smoky lives in a barn with, and is mates with, both Daisy and Floss (who happen to be sisters), and both of them bear his kits. The two she-cats are fine with it, although Daisy feels that he always did like Floss a bit better.
- The main theme of the polyamorous comedy romance The Giddy Death Of The Gays And The Strange Demise Of Straights, following the love between the characters Dom, Richard, and Caroline. Scenes set in the future show a greater acceptance of nonmonogamous relationships, and even the potential for legal rights.
- In Portlandia, Fred and Carrie briefly symaltaniously date their roommate Alexandra. After she breaks up with Carrie, Fred feels uncomfortable dating someone who broke his best friend's heart, and eventually breaks up with Alexandra too.
- This is the eventual resolution to the Unwanted Harem in Kharmic Rebound Gerald is forced to Marry Them All and live as one huge family as punishment for his crimes.
- In The Expanse polygamous marriages aren't the norm but also aren't considered especially odd. Main character James Holden is the child of just such a marriage, being created from the genetic material of all eight of his parents.
- Star Trek:
- Dr. Phlox of Star Trek: Enterprise comes from a poly civilization. He has three wives, each of whom has three husbands, who themselves has three wives each. In a way you can say that all the Denobulan are part of one giant marriage group. There's also indication that three ISN'T the limit, since Feezal, who already had three husbands, attempted to seduce Trip. Phlox felt that Trip should have gone for it, indicating that Denobulans also lack any concerns about marital fidelity.
- At least one novel has indicated that group marriage is legal on Earth. (At least two of which were written by Vonda McIntyre.)
- On DS9, there's a throwaway reference to a Bolian officer having a wife and a co-husband.
- In the Next Generation episode "Data's Day", Data mentions that four-person family units are the norm among Andorians. It should be noted that this is also because, according to expanded works, Andorians have four sexes.
- Big Love, being based around Fundamentalist Mormon Polygyny, is both an example and a counterexample to this trope, especially since it's depicted that women are often wed as young teens, ergo matches are made outside of the realm of informed adult consent. However, the family of the main characters mostly came together as consenting adults, though Margene revealed in season 5 that she was only 16 when she married Bill. The age of consent in Utah is 18.
- Sister Clarice Willow on Caprica is married to multiple men and women, who are all married to each other. This is implied to be unusual but perfectly legal.
- Londo Mollari on Babylon 5 has three wives and a mistress, but it's kind of an aversion since he would gladly toss the polyamory and his three wives out the window, and marry just the mistress he truly loves (his marriages were political ). He sums it up rather bluntly:
Londo: Here. Look. These are my three wives: Pestilence, Famine, and Death. Do you think I married them for their personalities? Their personalities could shatter entire planets! Arranged marriages. Every one. But they worked out, they inspired me! Knowing that they were waiting at home for me is what keeps me here—75 light-years away!
- Doctor Who has invoked this on a few occasions:
- In "The Husbands of River Song" it's revealed that River Song became married to at least two other individuals (albeit one for the sake of a mission) while still considering herself to be married to the Doctor.
- The Doctor unambigiously falls in love with Clara Oswald over the course of her time on the show, leading to an Act of True Love scenario covering billions of years leading to an Anchored Ship at the end of Series 9. In the very next episode (the aforementioned "Husbands of River Song"), we learn this all happened while he was still married to (and, it is strongly indicated still in love with) River Song.
- Clara isn't immune to this either, as she attempts to balance relationships with both the Doctor and Danny Pink in Series 8, and in Series 9 while (per Word of God) enamoured with the Doctor, at some point she also enters into an off-screen love affair of some sort with Jane Austen. Clara's polyamoric tendencies are another ingredient in her becoming a Distaff Counterpart to the Doctor.
- Phoebe finds out at the end of the third season that the mother who raised her isn't her biological mother; when she meets her biomom in Montauk, she tells Phoebe that herself and her parents were "kind of a couple" together.
- In an early arc Chandler is in a relationship with a woman who has two other boyfriends, he finally cuts it off when she gains a fourth.
- Mac on JAG has to defend a polygamist in "Killer Instinct".
- Orange Is the New Black: Season 4's Judy King is very openly polyamorous. She has a husband, a boyfriend, and had a brief dalliance with Yoga Jones and Luschek.
- One of the victims of the week in Pushing Daisies has four wives. The heroes are pissed about this—not for any moral reason, but because it makes "My wife killed me" a whole lot more complicated than it needs to be.
- The Following: The rather twisted Emma/Jacob/Paul Love Triangle seemingly resolves as this in episode 4.
- In The Tribe, Ram made wives out of sisters Java and Siva, mostly to show off his own power. When he meets Ebony (the third sister) he want to marry her too, to "complete the set", and she seem receptive to this at first. When she falls in love with Jay instead he becomes heartbroken for her betrayal.
- In a Sliders episode, the characters end up in a world where the bikers are raiding oil trucks to convert it to gas for their bikes. Apparently, all cars run on alternative fuels here. Mallory (not Q-ball) hooks up with a woman who turns out to be the leader of the local biker gang. One day, he enters her place to find her in bed with two guys (all still clothed, for PG reasons), who she calmly explains are her husbands. Furthermore, she invites him to join them. He refuses and later finds out that his friends knew that polygamy is legal and perfectly acceptable in this world.
- Subverted in American Horror Story: Asylum with Kit, Alma and Grace. They set up housekeeping together but it does not end well, especially for Grace.
- Suggested in Too Many Cooks, with Darren and Claire in an embrace being approached by T.L. and Sasha, and immediately turning around and kissing them.
- Jack & Emma & Izzy in You Me Her
- "My Girlfriend's Girlfriend" by Type O Negative
- The Patrick Fiori song "4 mots sur un piano"—it's the prettiest song about a triad you'll ever hear.
Vous étiez ma vie comme la nuit et le jour
Vous deux, nouez, filiez mon parfait amour
Un matin vous m’avez condamnée à choisir
Je ne vous aimais qu'à deux
Je vous laisse, adieu
Choisir serait nous trahir
- "I just can't see you and me and her without each other…"
- Ben Lee has the song "Apple Candy", where the (male) POV desires a three-person relationship.
I know you made a promise
and told him he's your lover
make me feel the same
…I want you and I want him.
- "Family", "Move to the Country", "Three", "Perils of Poly" by "Christopher Bingham (Gaia Consort/Bone Poets Orchestra)".
- "My Boyfriend's Girlfriend (Isn't Me)" by Must Be Tuesday.
Of all the ways I've ever dated
It's never been so complicated
The chain can extend to eternity
'Cause my boyfriend's girlfriend isn't me
- "Millionaire Girlfriend" by Jonathan Coulton seems to suggest this, since it will be "my beloved and my millionaire girlfriend and I", until the last verse where it's revealed that he's just working to get power of attorney over all her assets.
- The David Crosby song "Triad", most famously recorded by Jefferson Airplane. Notably, contains multiple Shout Outs to Stranger in a Strange Land.
You both stand there
Your long hair flowin'
Your mind still growin'
Sayin' to me:
"What can we do now that we both love you?"
I love you too
I don't really see
Why can't we go on as three?
- In Books of Samuel, David—king of the Israelites—had two wives, Michal and Bathsheba, as well as several mistresses.
- The Noël Coward play Design for Living explores every possible combination of playwright Leo, artist Otto, and decorator Gilda before finally having them inform her husband Ernest that his services are no longer required, as the three of them intend to live in what Ernest decries as a "disgusting three-sided erotic hodgepodge."
- In Gilbert and Sullivan's Trial By Jury, someone proposes that the defendant (in a Breach of Promise of Marriage suit) "marry this lady today, and marry the other tomorrow". That's considered a satisfactory solution until one of the attorneys points out to the judge that such an arrangement would be illegal.
- You can suggest this as a solution to a Love Triangle in Dragon Age: Origins and Mass Effect, but in both cases the more prudish Love Interest rejects the idea and breaks off the relationship.
- Jade Empire, allows you to do this if you keep insisting to Dawn Star and Silk Fox that you can't choose just one of them, to the point that if you do make a choice at the very last time they ask you to decide as opposed to maintaining your indecision, both will break it off with you, not wanting to hurt the other's feelings. After the game, though, you end up with only Silk Fox, Dawn Star going off to do her own thing. To make things even more amusing, at some point before the final decision, you might also find out that they're cousins.
- Male player characters in Neverwinter Nights: Hordes of the Underdark can suggest that Aribeth and Nathyrra share him. It actually works.
- You can try it in Star Wars: The Old Republic, particularly with a male Sith Warrior that's corrupted and romancing Jaesa, but is still nice to Vette; Jaesa is open-minded on the idea of sharing, but Vette is squicked out. None of the other potential love interests will go for it. Though any romance option with the Imperial Agent and Vector is going to be a crowd scene since he's tied to a Kilik hive.
- Overlord II where you collect three mistresses over the course of the game, are allowed to keep them, and chose any one to be your primary one at any point in the game. It's possible to get all of them to "get along" with and without innuendo.
- Angel Starr references having multiple boyfriends in Ace Attorney, even telling the judge that there's a slot open for him.
- In the final route of Duel Savior Destinynote this seems to be the final solution to the romance. Crea takes center stage, though.
- Alexstraza from the World of Warcraft, though widowed many times over, used to have several husband-equivalents at once.
- Morrie, owner of the Monster Arena in Dragon Quest VIII, is quite clearly in relationships with all four of the bunny girls working there. That lucky son of a bitch!
- Ryudo, Elena and Millenia, from Grandia II, though Elena and Millenia were, for most of the game, technically the same person.
- Phantasmagoria 2 has bisexual hero Curtis wishing he could run off and live with his girlfriend Jocilyn and his doomed gay coworker Trevor, both of whom are in love with him. At one point Curtis was dating both Jocilyn and his BSDM loving coworker Therese, but only Therese was okay with the idea of their having an open relationship.
- Quest for Glory V: A glitch lets you propose to three love interests and no one objects. Though only one appears as the Hero's consort at the end.
- In Fallout 4, you can romance all your companions with no repercussions whatsoever.
- One of the (very hard to get) endings in School Days has Sekai and Kotonoha do this to the protagonist Itou Makoto.
- In one of its sequels, Cross Days, you can do this in another very hard to get ending with Makoto, Yuuki, and Kotonoha. Makoto describes it as Kotonoha being the girl he loves most and Yuuki being the boy he loves most. Except Kotonoha doesn't know the all important details. She is seemingly okay knowing she is not Makoto's only lover, happy enough knowing she is girl he loves most, but she wasn't told that "other woman" is actually a boy, and that Makoto loves him equally to her, in a perfect example of From a Certain Point of View. And if she ever found out she could possibly murder Yuuki with some form of deadly weapon as she does in other ending where she overhears them having sex, and while Makoto is planning on trying to get her some mental help, this is the best solution he can come up with in the meantime.
- Fate/stay night: In Unlimited Blade Works route relationship between Shirou, Rin and Saber is turning this way, with them with them slowly developing strong feeling for each other. And if a player is able to keep Shirou's affection for both girls in balance, then he is rewarded with good ending where Shirou, Rin and Saber start officially live together as mutual lovers.
- The English Dating Sim Summer Session features a three-person relationship as one of the canon endings; indeed it's impossible to get that particular girl without sharing her with your roommate. It's unclear whether the two male characters are actually involved with each other or just sharing the girl in a V.
- In Long Live the Queen, this is one of the possible ways Elodie can pursue a romance with Brin. If Elodie has the opportunity to choose her fiance at the end of the game, Brin will suggest that she marry her brother Banion so that Elodie and Brin can spend more time together as sisters-in-law; Elodie ends up being close to both of them. And if Brin and Joslyn aren't already entangled with other matters, Brin will even marry him to doubly ensure a connection to Elodie as her stepmother. Elodie is much closer to Brin than to Banion in this scenario, though, but their respective husbands still seem happy with this arrangement. Depending on what else happens to all involved characters, there are further variations of whose kids are being raised by whom. Including the Banion+Elodie and Brin+Joslyn children all being raised together, making them pseudo-siblings on top of everything else.
- This is the premise of Niels.
- And the premise of Kimchi Cuddles too.
- Fans! has Rikk, Alisin and Rumy become a triple. This arc continued with the marriage surviving some storms to the point where thanks to alien medtech Alisin is currently carrying a baby Rumy and Rikk conceived.
- Angela of Punch an' Pie believes in polyamory, but isn't successful in practicing it.
- Evidently a fairly common situation in the absurdly complex social circles at the university in Questionable Content.
- Sirkka in FreakAngels, who lives with a harem.
- The Flash Forward strips in the Space Arc of Arthur, King of Time and Space suggest that the Arthur/Guenevere/Lancelot triangle resolves this way in at least one timeline. Other strips hint that Arthur is well aware of the affair between his wife and his best friend in at least some of the other timelines, as well, but studiously ignores it.
- The short-lived webcomic Jake the Rake.
- Mentioned in Queen of Wands.
- Maxine in Leftover Soup is part of a five-way.
- Girl Genius: The Heterodyne Castle seems to prefer this as the ultimate solution for the Love Triangle between Agatha, Gil, and Tarvek. Comments by the Castle indicate that this was likely a common practice for previous Heterodynes, and plenty of other characters have suggested it too. The Ho Yay/Foe Yay between Gil and Tarvek doesn't really do much to rule out such a solution.
Violetta: Say—you wanna make a bet on who she'll pick?
von Zinzer: Sure! But, hey—she's the Heterodyne. Maybe she'll just keep 'em both.
Phil: Who thought haveing two boyfriends was a good idea?!
- It's teased in some non-canon spin-offs, too.
[cue Cheshire Cat Grins from Agatha, Zeetha and Kaja]
- Karin-dou 4koma: Ran/Shizuki/Tamaryu, as per Ran and Shizuki's decision to resolve their rivalry over Tamaryu by having Shizuki be Tamaryu's wife, Tamaryu be Ran's wife, and Ran be Shizuki's wife. Ran explicitly says that the three of them are together a monogamous couple. Although Tamaryu isn't happy about the romantic aspect, they do get along quite well. When Eldelita attends a sleepover with them, she feels as awkward as someone invited to play and stay overnight at a newlywed's house.
- Cats N' Cameras: Main characters, Jim, Josephine and Sari are in what appears to be casual threesome. Jim and Jo are an established couple. Sari seems to be Friends with Benefits to both of them.
- The Insecticomics has a lot of this, usually in the form of open relationships.
- In the backstory of S.S.D.D Richard briefly attempted a threeway with the lesbian couple he roomed with in college, it didn't work out.
- In the future arcs, Tessa's adoptive parents have a seemingly healthy open marriage. Which squicks their daughter out to no end.
- Family, an Internet television show, features a polyamorous triad (V formation).
- Mackenzie in Tales of MU falls into this situation pretty quickly. As things stand, she is the lover of Ian, Steff, and Amaranth, the former two also being Amaranth's lovers (but not with each other as well).
- Metamor City has the Psi Collective members live in families/cells, with (preferably) one male and several females. This is because they believe that a war with the "mundies" (unpowered humans) is inevitable and that they'll need to prepare by breeding as many psychics as possible, but there aren't many powerful males. At the end of Making the Cut they even considered Gender Flipping "surplus" males.
- Bladedancer, Gateway, and Chain Lightning have this in the Whateley Universe.
- Very common in Chakona Space
- The titular Chakats having a certain saying, "love doesn't divide, it multiplies."
- In addition, Foxtaurs are polygynous due to a 3:1 ratio of vixens to todds and todds are "obligated" to make themselves available for stud duty once every five years.
- Caitians (aliens based on lions) are even worse, with an 8:1 ratio. Each harem usually consists of up to six women.
- Stellar Foxtaurs, having been designed with the best traits of Chakats and Foxtaurs, tend to have similar views towards casual sex. Though mating habits vary with some breeds, Polars don't form permanent relationships while Deserts tend towards triads, and Starwalkers mate as a large group but carefully control breeding.
- Parodied by Hardly Working in "My Two True Loves", in which Pat sings about his dream to have this sort of relationship.
Pat: It'll be just you and me! …and her!
- The Polyamory Bear, a parody of a “Purity Bear” video.
- The Jenkinsverse has a triad relationship forming between Allison Buehler, Julian Etsicitty, and Xiù Chang as of Deathworlders Chapter 24.
- In the Futurama movie The Beast With A Billion Backs, Fry briefly dates a girl named Colleen who is living with her four other boyfriends. The main plot is centered around Yivo, a massive, hermaphroditous alien who starts a relationship with every organic being in the universe. At the end of the movie, both relationships end, as Colleen goes back to Yivo's universe with shkler, closing the portal between the universes behind them, and the movie ends with the Aesop that "love doesn't share itself with the world".
- Old Man Waterfall states that he loves his seven wives, and his husband.
- The Netherland's first married trio. The guy was married to a wife and they both registered a partnership with the second woman, who is a partner, but not legally a wife.
- Thai antiques dealer Thao Wichai married the identical twin girls-next-door from his childhood hometown.
- Tilda Swinton has a happy relationship with two male partners, both of them painters.
"It’s the way we have been for nearly four years. I’m very fortunate. It takes some extraordinary men to make a situation like that work."
- Misha Collins (Castiel on Supernatural) had a threesome relationship with his wife and another woman for some time, as explained in her book. She describes how a night of cosmos with a friend led to them all in bed together, which led to her later realizing that she had fallen in love with her friend, while still remaining in love with her husband, and that both of them loved each other and her. It all worked out in the end.
- William Moulton Marston (creator of the lie detector and, as "Charles Moulton", Wonder Woman) lived this with his wife Elizabeth and Olive Byrne… the relationship was so stable that the two women continued it after his death and until Olive's about forty years later.
- In September 2012, three people were married to each other in Brazil.
- As stated elsewhere on the wiki, it has been reported by the news-magazine The Independent, "polygamy is a right enshrined in South Africa's constitution." South African leader Jacob Zuma is a prominent example. In 2010, he married his fifth wife in a traditional ceremony at his remote homestead. In terms of history, the news-magazine also stated, "In 1998, the University of Wisconsin surveyed more than a thousand societies. Of these just 186 were monogamous. Some 453 had occasional polygyny and in 588 more it was quite common. Just four featured polyandry. Some anthropologists believe that polygamy has been the norm through human history. In 2003, New Scientist magazine suggested that, until 10,000 years ago, most children had been sired by comparatively few men. Variations in DNA, it said, showed that the distribution of X chromosomes suggested that a few men seem to have had greater input into the gene pool than the rest. By contrast most women seemed to get to pass on their genes. Humans, like their primate forefathers, it said, were at least "mildly polygynous"."
- The HBO documentary Cat Dancers examines the tragic lives of Ron Holiday, Joy Holiday and Chuck Lizza, a trio of big-cat performers who preceded Siegfried and Roy and were a romantic threesome. Their partnership ended after a tiger mauled and killed both Holiday and Lizza.
- In 2011, Charlie Sheen was living with a porn actress Bree Olson and a model Natalie Kenly.
- Averted by Olympic skier Suzy Chaffee (she never married) who explains that if she were to marry, it would have been an open marriage:
"Marriage is only possible for me if it's an open marriage. A building situation where each helps the other grow. I've been dating younger men because they still have that spontaneity and creativity. But I haven't found anyone to have an open marriage with."
- British actor Sir Michael Redgrave, father of Vanessa Redgrave, was known for this. Both Sir Michael and his wife, Lady Redgrave, kept lovers with each other's knowledge and consent. Some of these lovers ended up living with the family for some time. Sir Michael and his wife remained Happily Married until his death.