Kylie Jenner Flashes Nips in Lingerie Photo Shoot for 20th Birthday

She's not a little girl anymore!

Kylie Jenner is all grown up! To prove to fans exactly just how much she’s grown since her first appearance on Keeping Up with the Kardashians, the Life of Kylie star is stripping down to nearly her birthday suit in celebration of turning the big 2-0. While we’ve seen Kylie in an array of skimpy outfits in the past few years, this might be her sexiest photo shoot to date!

After all, she’s officially not a teen anymore…

Credit: E!