Good gracious, Khloé Kardashian's butt is bodacious — Kim Kardashian is no longer the only sister with the enviable behind.

Not only does Khloé's booty defy the laws of gravity, it seems to be the only thing on her body that's not shrinking due to her impressive weight loss. What gives, KoKo?

Check out 13 mesmerizing photos of the 30-year-old's tush.