What is our obsession with big butts? Here's a trailer called "Bottoms Up" and it is a documentary exploring the media and society's pressures on women to have big butts. Really now? Do we really want to look like Kim Kardashian?

Are big butts sexy?

Does everyone want Jen Selter's butt?

Really?

Then there's Kim Kardashian's.

Are we all obsessed with big butts?

Check out the video below: