When two friends or siblings fall in love with the same person, one of two things will happen.
If the show is an After School Special or comedy, the friends will fight for a bit and then realize that what they are doing is stupid because "friendship is more important than some guy/girl". The guy/girl turning out to be a Handsome Lech or The Vamp is what usually makes the friends realize this.
- Toradora!: Ami steps aside for Minori (even though she thinks the relationship wouldn't work) apart from little hints. Minori has been stepping aside for Taiga, who wasn't interested. Taiga steps aside for Minori when she does get interested. Taiga for Sumire, Yuusaku for Sumire's career. Everyone is just ''so'' generous, aren't they?
- CLANNAD: Kyou's route is about this trope for her and Ryou, first with Tomoya starting to date Ryou basically to be a nice guy, not because of any interest. Then he realizes he doesn't really love her, and instead likes Kyou. But he could be happy with Ryou as well. Both of them realize this as well, and it just gets awkward. Tomoya eventually tries breaking up with Ryou, who runs away before hearing it. Then, she tells Kyou to cut her hair to look like hers and calls Tomoya to school, where he successfully breaks up with 'her' and admits he likes Kyou. To Kyou.
- In Smallville, Chloe and Lana are like sisters and they both want Clark Kent. Chloe steps aside hoping that one day Clark will come back to her. Which he never did.
- Sister, Sister: This happened five times.
- Drake & Josh: In the episode "Believe Me, Brother", Drake's girlfriend Susan falls for Josh.
- On Angel, Wesley and Gunn both fell for Fred pretty much simultaneously. Fred chooses Gunn, which Wesley is none to happy about but grudgingly tolerates...until he's ejected from the group for taking Angel's infant son (though in Wes' defense, he was saving him from a rather gruesome prophecy that turned out to be false). One complicated reunion, breakup between Fred and Gunn, and half season of sexual tension later, Wesley finally gets his girl. That is, until she's possessed by a blue-haired demon and killed. Ah, the bliss of Joss Whedon.
- In several episodes of Friends this is a central conflict theme between the characters. For example, in "The One with Mrs. Bing", Monica and Phoebe both happen to fall for the same guy... who happens to be in a coma... however, all true-conflict between the two is overcome when coma-guy resurfaces and ends up being a jerk (or just completely sane depending on your point of view).
- In Degrassi, Emma and Manny both have a crush on Craig in season two. But when he shows signs of liking Manny more, Emma stops being interested in him because she doesn't want to compete with her friend.
- In The Pearl Fishers, neither guy gets the girl, and they patch up their friendship at the end.
- Totally Spies!: All ¡Three Amigos! had a crush on David for two seasons. They spent his première episode bickering about it, and afterwards, without explanation, only one would pursue him an episode with either indifference or support from the others. They probably had an offscreen agreement to take turns.
- Kim Possible: In "Exchange" (2x12), Kim and Monique fought for the love of some Japanese exchange student, until they eventually got over it for The Power of Friendship. Just to see him being hocked with Bonnie.
- Total Drama: Both Trent and Cody are attracted to Gwen. When Cody finds out that Trent's the one Gwen likes, however, he not only steps aside, he actually helps them get together (with limited success, since Rule of Drama insists their romance be bumpy until the finale, but still). And then they break up the next season, giving Cody another chance. Which he loses. To Duncan. Unlike with Trent, this time Cody just punches him in the face.
- Superman: The Animated Series has a cross over with Batman: The Animated Series where Lois Lane starts dating Bruce Wayne. She likes Bruce and Superman, but she thinks Batman is creepy and Clark Kent is boring. At the end, Bruce Wayne steps aside and returns to Gotham, warning Clark that he better take good care of Lois because Bruce knows where he lives...