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40 Best Sister Costume Ideas For Halloween
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Sister Halloween Costumes: Haley and Alex Dunphy From "Modern Family"

  • What to wear: Haley is glamorous, so wear your chicest outfit. Alex is a little more conservative, so jeans, a sweater, and glasses will do.
  • How to act: Haley is s stereotypical teen, while Alex is "the smart one."
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