This one's easy!
This supermodel comes from a family of famous butts, so it makes perfect sense that she would flaunt hers.
Related: Guess The Celeb In A White Mesh Bikini
The 20-year-old shared a previously unpublished pic from a photo shoot with Mert & Marcus featuring her hiking up her one-piece to give you a nice little glimpse of her glutes!
If you haven't guessed by now, you must be living under a rock and only recently found an internet connection! LOLz!
It's Kendall Jenner, of course!
Kenny shared the pic on Twitter and Instagram to make sure all of her 82+ followers got to see it!
[Image via Mert & Marcus/Twitter.]
Tags: buttz, guess the celebrity, mert and marcus