Kimberly Stewart wants to swap bottoms with Jessica Alba, Alba was recently voted World’s Sexiest Woman.

Kimberley, recently voted world’s most eligible woman in an FHM poll told People magazine: “I want my ass to look like Jessica Alba’s. She has the best body.

“Next time I meet her, I’ll ask her for tips on how to get my bum into shape.”

Kimberly Stewart, the daughter of rocker Rod Stewart looks pretty bootylicious herself in a photoshoot for the Ultimo lingerie range, Adore Moi.