History Main / SiblingTriangle

* ''PokemonDiamondAndPearlAdventure'' has something similar; both Jun and his ''father'' [[DirtyOldMan Palmer]] like Mitsumi.

* ''PhineasAndFerb'' [[PlayedForLaughs plays this for laughs]] on one occasion--when in the future, it's hinted that [[TheChick Isabella]] will grow up to marry her crush [[ObliviousToLove Phineas]], much to her pleasure. Someone then points out that the hint could also mean she marries [[TheQuietOne Ferb]] instead, [[CovertPervert causing him to]] [[ShipTease suddenly start flirting with her]]. And needless to say, there's at least some [[PortmanteauCoupleName Ferbella]] fanfiction that exploits this trope for drama.

* ''PokemonDiamondAndPearlAdventure'' has something similar; both Jun and his ''father'' [[DirtyOldMan Palmer]] like Mitsumi.

* In ''[[UltimateXMen Ultimate X-Men]]'', Lorna (aka Polaris) dated Scott (aka Cyclops) in the backstory, and his brother Alex (aka Havok) in the series' present.

* ''{Onegai Twins}'' plays out like one of these. The plot consists out of two girls that turn up at a boy's house claiming to be his twin sister. The boy and the girls need to find out who is the real twin sister while falling in love with each other.

* This is also a good summary of the relationship between the three protagonists in ''Y Tu Mama Tambien'', where on the course of a long road trip, the two brothers both become infatuated with Luisa. They each bump uglies with her separately, get into a fight about it, and it all eventually turns into a (initially awkward) crazy threesome. Definitely that kind of movie.

* This is basically the plot of KissXSis.

* Verdi's ''Il trovatore''. And the boys don't even know they're brothers. Consequence? Well, it's an opera...
** Typical plot in operas. Other examples include ''Pelleas et Melisande'' by Debussy (based on Melisande's play), and ''Amadis'' by Jules Massenet. %%COMMENT TO EDITORS: Putting the right accents in the name breaks stuff, so don't do it, please.

* In the ''{{Warhammer}}'' novel ''Defenders of Ultuahan'' two brothers love the same woman. One brother [[TheUriahGambit leaves the other brother to die during a skirmish]]. This comes back to bite him in the arse.
* In Harry Harrison's ''TheStainlessSteelRat Goes to Hell'' Digriz' two twins fall in love with the same woman. The problem is solved by going to a parallel universe and fetching an alternate version of said woman.

* Tommy and Justin of ''BrothersAndSisters'' were both dating Lena, though not precisely at the same time.
* Semi-example: In one episode of ''[[WesternAnimation/TeenageMutantNinjaTurtles1987 Teenage Mutant Ninja Turtles]]'', three of the four Turtles eat pizza tainted with a love potion, causing those three to fall in love with Irma. Hilarity and in-fighting ensue, until Splinter and the unaffected Turtle find a way to counteract the potion. Afterwards, further hilarity ensues when Irma discovers who was actually courting her.

* Sandy and Dennys in ''Many Waters'' both love Yalith and she loves them both back. Unfortunately, the relationship as such is doomed because the flood's coming and Yalith isn't allowed on Noah's ark.
* Played with darkly in [[CliveBarker Hellraiser]]: [[WickedStepmother Julia]] has married [[UglyGuyHotWife Larry]], but eventually murders him in preference for his brother [[EvilUncle Frank]], who seduced her prior to the events of the film. It doesn't really go well for her....
* TheBible has a rather complicated example with Jacob, Rachel and Leah. Jacob fell madly in love with Rachel, and worked for her father for seven years in order to earn the right to marry her. However, in Rachel's society it was shameful for the younger daughter to be married first, so (with some help from the very thick veils used at the time, as well as some alchohol) their father switched Rachel out with Leah, with Jacob only finding out during the wedding night. Rachel and Leah's father then forced Jacob to work ''another'' seven years so he could marry Rachel for real. One can't help but wonder what poor Leah felt about this arrangement. (In a slightly unrelated note, this is why we have the tradition of the bride removing her veil in Western weddings.)
** For an added complication, a Jewish legend says that Leah was originally destined to marry Jacob's brother, Esau, who was [[CainAndAbel far less meritorious]]; Leah was overwrought and prayed to God, who then arranged things so she could marry Jacob as well.
*** And, to make things even ''more'' complicated, two handmaidens were involved. Who in some legends were ''also'' Leah and Rachel's sisters.
* ''Duel in the Sun'' was largely about this
* In the IsaacAsimov short story ''To Your Health'', two brother opticians are in love with the same eye-fixated girl.

* In ''[[UltimateXMen Ultimate X-Men]]'', Lorna (aka Polaris) dated Scott (aka Cyclops) in the backstory, and his brother Alex (aka Havok) in the series' present.

* In the film ''The Man in the Moon'', Emily Warfield and a very young Reese Witherspoon are sisters both in love with Jason London. [[spoiler:He dies, forcing the sisters to reconcile.]]
* In the {{Warcraft}} universe, Night Elf brothers Malfurion and Illidan Stormrage both vie for Tyrande Whisperwind's affections. Illidan's rage and jealousy towards Malfurion for so effortlessly (and unintentionally) winning Tyrande's affections played a large part in triggering Illidan's FaceHeelTurn.
* Verdi's ''Il trovatore''. And the boys don't even know they're brothers. Consequence? Well, it's an opera...
** Typical plot in operas. Other examples include ''Pelléas et Mélisande'' by Debussy (based on Mélisande's play), and ''Amadis'' by Jules Massenet.

* A variation exists in ''The Love of the Nightingale''. Tereus has an ArrangedMarriage to Procne but falls for her sister Philomele. However neither even likes him.
* ''BeforetheDevilKnowsYoureDead''

* ''MansfieldPark'': The Bertram sisters go after Henry Crawford (despite Maria Bertram already being engaged). The results: Crawford plays with their hearts for his own amusement until their DisappearedDad returns home, goes after their cousin Fanny next because [[ILoveYouBecauseICantControlYou she's the only girl on the planet immune to his charms]], and [[spoiler:runs away with Maria after she's already married]].
* ''PokemonDiamondAndPearlAdventure'' has something similar; both Jun and his ''father'' [[DirtyOldMan Palmer]] like Mitsumi.
* The four main characters of ''TheDemonsLexicon'' are two sets of siblings. Of each set, one sibling is attracted to both of the other siblings. Only one of these attractions is PlayedForDrama; the other fizzles out as the party instead develops a crush on the BigBad.
* This is basically the plot of "The Bartered Bride", the opera by Bedrich Smetana. Marenka and Jenik want to get married, but Marenka's parents have already employed a matchmaker to hook her up with the son of a rich man named Micha. The matchmaker demands Jenik break up with Marenka, and Jenik promises he will do so if the matchmaker pays him off and promises that Marenka won't marry anyone else but Micha's son. Jenik, of course, turns out to be Micha's long-lost son, and he and Marenka get married.
* This is also a good summary of the relationship between the three protagonists in ''Y Tu Mama Tambien'', where on the course of a long road trip, the two brothers both become infatuated with Luisa. They each bump uglies with her separately, get into a fight about it, and it all eventually turns into a (initially awkward) crazy threesome. Definitely that kind of movie.
* A major plot point in BloodBrothers is both Mickey and Eddie being in love with Linda. However none of the three know that Mickey and Eddie are brothers.

*** And, to make things even ''more'' complicated, two handmaidens were involved. Who in some legends were ''also'' Leah and Rachel's sisters. SoYeah.