Nicky Hilton Has A Crack In Her Window [PHOTOS]

Nicky Hilton was spotted at Paris Fashion Week Tuesday, and so was her entire bottom — crack and all.

The 31-year-old blonde was wearing a white dress with sheer panels and circle-shaped cutouts, and as she climbed the stairs of the Palais Brongniart, her dress rose up and revealed a little too much.

Paris Hilton’s sister might want to check her backside in a mirror before she leaves home next time, preferably before her wedding Friday. (PHOTOS: This Actress Had A Wardrobe Malfunction That Would Make Marilyn Monroe Blush)