Karrueche Tran Flashes Her Butt in Sexy Halloween Costume – Plus More Stars Wearing Racy Costumes

Karrueche Tran is really flaunting what Chris Brown can’t have.

The 27-year-old channeled Lil’ Kim for one of her Halloween costumes this year and wasn’t shy about showing off her booty. The model had on a fur coat that completely covered her top half, but strategically hung just above her butt – which was pretty much completely exposed, despite the electric blue leotard she had on.

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She’s not the only star who’s decided not to leave much to the imagination on Halloween. Click through the gallery to see more celebs who have practically gone naked for holiday.