Kourtney Kardashian shows off her sexy body in a swimsuit as she vacations in Mexico

Reality star, Kourtney Kardashian is currently on a birthday vacation with her girlfriends and sister, Kim in Mexico. She showed off her sexy body in a two piece swimsuit.  Kim Kardashian also took to twitter to reveal how much fun they had. She said that Kourtney won't stop cartwheeling naked and that she threw up in her bed four times. More photos after the cut.