With any other person, it would be totally wrong and extremely offensive.
  1. Tell you that you look fat in your outfit
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    They're the only ones that can tell you their honest opinion and they're not afraid of hurting your feelings. They are RUTHLESS.
  2. Take your clothes without asking
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    Sometimes they give it back washed and folded. Most of the time, you find your favorite shirt (that you thought you lost months ago) crumpled in the corner of their room.
  3. Talk shit on you
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    And vice versa.
  4. Vent to about other people
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    "It's okay, she's fat anyway."
  5. Beat you up
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    After a few hours of not talking to each other, you become friends again acting like nothing ever happened.