Before I tell you how to achieve a Kim Kardashian-style booty without going under the knife, I'd like to make it clear that I see nothing wrong with flat derrières. In fact, I think they're underrated. Now that I got that off my chest, I can proceed with these Sassybax Sassy Shapers ($68 for leggings, $55 for panty), which give the illusion that you have a plumper backside than you really do. If you think junk in the trunk is sexy, but your trunk has negative junk, you're the ideal customer. Go on, shake what your mama didn't give you! Oh, and if you're also looking for leggings with knee pads, look no further than Lindsay Lohan's legging line.