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Playing With / My Sister Is Off-Limits!

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Basic Trope: Male character doesn't let anyone get romantically involved with his sister.

  • Straight: Bob won't let his friend Charlie date Bob's sister Alice.
  • Exaggerated:
    • Bob won't let anyone date Alice, even to the point of threatening them with physical violence, challenging them to a duel or outright murdering them.
    • Charlie jokes to Bob about dating his sister, only to enrage Bob. When Charlie points out that Bob is an only child, Bob states he still can't stand the idea.
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  • Downplayed: Bob is annoyed at Charlie for dating Alice, but grudgingly accepts it.
  • Justified:
    • Bob knows Charlie's history with women is less than ideal and doesn't want his sister's heart being broken.
    • Bob thinks his friend dating his sister would make things seem very weird between the three of them.
    • Bob and Alice spend a lot of time together and doesn't want Charlie to get in the way of that.
    • Bob is in love with Charlie (whether unrequited or not).
    • Bob is in love with Alice himself (whether unrequited or not).
    • The setting is one in which Arranged Marriage is the norm and an unmarried girl's male relatives have a say in whom she will marry — the relationship might put a slight on the Family Honor.
    • Some other cultural reason pertaining to the setting exists — e.g. dating a friend's sister is like dating your own.
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  • Inverted: Bob actively tries to get his friends to date Alice, much to her dismay.
  • Gender Inverted: Alice tells her friend Dana to stay away from Bob.
  • Subverted: "How dare you go out with Alice... nah, just kidding man, it's perfectly all right!"
  • Double Subverted: Bob then recites several strict—perhaps even contradictory—conditions on which the rightness thereof hangs.
  • Parodied: Bob whales on anyone who so much as looks at Alice.
  • Zig-Zagged:
    • Bob is OK with Charlie dating Alice as long as he doesn't commit crimes. However, because All Girls Want Bad Boys no matter what, they become involved. But then Charlie crosses a line and Alice leaves him.
    • Bob has several sisters. He is violently protective of Alice and would challenge any guy who dares to approach her to a duel. With Carol, he's less caring, and would only give her prospective boyfriends an "If you ever dare hurt her..." speech before letting them do their thing. With Elise, he actively encourage his friends to try and date her.
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  • Averted: Bob is totally fine with Charlie going out with Alice.
  • Enforced: ???
  • Lampshaded: "I'm not thrilled with the thought of my sister being abused by some jerkass."
  • Invoked: Alice's first boyfriend was a horrible excuse for a human being, Bob was The Cassandra about that, and consequently, he's become nervous about her.
  • Exploited: ???
  • Defied: When Bob tries to stop Charlie from dating Alice, she gets in Bob's face and yells at him to lay off.
  • Discussed: ???
  • Conversed: ???
  • Implied: ???
  • Deconstructed: Alice ends up single the rest of her life because no guy is willing to deal with her brother's attitude. Alice also ends up bitter at her brother Bob for scaring off potential suitors.
  • Reconstructed: Charlie has enough of a backbone to not cave in to Bob's behavior. The fact that Charlie is able to deal with Bob shows Alice that they can work through any other troubles that occur in their relationship, so they get married.
  • Played for Laughs: ???
  • Played for Drama: Bob is raping his sister Alice behind closed doors, and is willing to kill any guy she might be interested in who could take her away from him.

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