As illustrated by Eva Cavalli, wife of fashion designer Roberto Cavalli, celebs can afford undies. Poor Mrs. Cavalli was boarding a luxury yacht in Cannes to party with the likes of Sharon Stone, Mischa Barton, and Minnie Driver, when her pants fell straight off her butt.

No word on whether the three aforementioned nipple slippers and butt barers had any wardrobe malfunctions while on board.

Photos: Celeb Warship

Labels: Minnie Driver, Mischa Barton, Sharon Stone