History Main / Polyamory

* ''Series/Siren2018'': Maddie is involved with Ben when the series starts. However, both soon grow attracted to mermaid Ryn, and she reciprocates. Both of them kiss her before having a [[ThreewaySex threesome]] in Season 2, where they settle on [[{{Polyamory}} all being together]] since both like Ben as well.

* In ''Series/Siren2018'', the titular mermaid Ryn, initiates a relationship with a couple, Ben & Maddie.

* Possible in ''VideoGame/TheHayseedKnight''. Ader enters a loving, [[EthicalSlut but not exclusive]], relationship with Sep. He also has an obvious affection for his friend Eina, whom Sep is also attracted to. Sep naturally [[ShipperOnDeck pushes the two friends towards one another]] while flirting with Eina herself. Whether or not it it coalesces into a three-partner situation depends on player choices. [[spoiler:Turns out, the three being a throuple is required to get the game's GoldenEnding.]]

* The FlashForward strips in the Space Arc of ''Webcomic/ArthurKingOfTimeAndSpace'' 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.
* ''Webcomic/{{Boyfriends}}'' is about four college students who begin a polyamorous relationship, and navigate the adventure that is their dating life.
* ''Webcomic/CatsNCameras'': 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 FriendsWithBenefits to both of them.
* ''Webcomic/{{Fans}}'' has Rikk, Alisin and Rumy become a triple. This arc continued with the marriage surviving some storms to the point where [[spoiler:thanks to alien medtech Alisin is currently carrying a baby Rumy and Rikk conceived.]]
* Sirkka in ''Webcomic/FreakAngels'', who lives with a harem.

---> '''Phil:''' Who thought haveing '''''two boyfriends''''' was a '''''good idea?!'''''\\

* The ''Webcomic/{{Insecticomics}}'' has a lot of this, usually in the form of open relationships.

* ''Webcomic/KarinDou4koma'': 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.

-->'''Woman 1:''' My husband's not gonna like this.
-->'''Woman 2:''' I'm afraid mine will.
* Maxine in ''Webcomic/LeftoverSoup'' is part of a ''five''-way. When a second woman entered the relationship she even forcefully reprogrammed her brain into bisexuality just so that she wouldn't be missing out on anything.
* ''Webcomic/{{Niels}}'': The titular [[TheDon mob boss]] is in a relationship with a married couple, Duncan and Natalie, whose son Elliot sees Niels as a second father. They live together happily -- Elliot's horror at once walking in on a three-way PrimalScene notwithstanding.
* ''Webcomic/PolyInPictures'' depicts moments in the life of polyamorous, queer and neuroatypical people.
* Angela of ''Webcomic/PunchAnPie'' believes in polyamory, but all this does is turn her into a ClingyJealousGirl who is [[MistakenForCheating paranoid that her girlfriend is cheating on her]] with ''literally everyone she knows''.

* Evidently a fairly common situation in the [[LoveDodecahedron absurdly complex]] social circles at the university in ''Webcomic/QuestionableContent''.

* ''Webcomic/SisterClaire'' has two prominent poly relationships: Maman/Michele/Sylvia (with Maman the latercomer) and Hana/Hawk/Lark/Pidge (with Hana coming in much later).

* In ''Webcomic/AlwaysHuman'', Sunati's parents Nisa and Prav are a HappilyMarried couple who also have a boyfriend, Vish.
* In ''Webcomic/TheAccidentalSpaceSpy'', Datima males have more than one wife.
* While there are a few genuine relationships between the members of the main cast of ''Webcomic/EnnuiGo'' (Noah and Len, Hashim and Sarah, for instance), everyone that lives with Izzy has sex with everyone on a fairly regular basis. The twists are that Darcy is a lesbian and focuses on Izzy and Tanya (the cast page specifically describes their relationship as poly), and the men usually only have sex with the women, although Hashim and Hiro had sex once on a whim. [[spoiler:Izzy, Darcy, and Tanya eventually enter a polygamous marriage at the close of Volume 6/Part 1, though whether or not they still engage in casual sex with everyone else is unstated.]]
* In ''Webcomic/{{Rascals}}'', the current dating situation with Quick, Raven, Chrissy, and Jazmin.
* Part of a side plot in ''Webcomic/GoGetARoomie'': Allan, Evelyne and Steve are in a polyamorous relationship. Only Allan and Evelyne are engaged though, and in the beginning Evelyne makes it very clear that she doesn't have feelings for Steve and that Allan belongs to her while Steve is merely tolerated as a sex partner. Their relationship develops as the comic progresses, and when Evelyne gets pregnant and Steve tries to remove himself from the relationship altogether, she and Allen stop him, accepting him as an equal member of their partnership.

* [[https://tapas.io/episode/1289820 ThePigpen]] is about a dorky wolf dating three pig brothers.