We went to university together rx elite testopro Celebs aren't afraid to get a little sexy when it comes to ad campaigns. Whether they're flaunting their curves in sizzling lingerie or showing off their modeling chops in sultry high-fashion shoots, these celebrities are so hot you'll forget what it is exactly they're trying to sell. Most recently, Kim, Khloe and Kourtney Kardashian rocked smoldering skintight looks to promote their Kardashian Kollection for British retailer Lipsy. Check out the sexiest star advertisements ...