Hottest Bodies 2014

Audrina Patridge's 15 Hottest Bikini Moments

Teeny tiny bikinis! Exotic beaches! Count down The Hills star's sexiest days in the sun in honor of her birthday

12. DOUBLE TROUBLE

Taking a break from being the bikini babe in the family, Audrina picks a monokini while sister Casey goes for a red-hot two-piece to accent her tattoos for some poolside antics in Las Vegas.