Backing That Ass Up: Kim Kardashian

Kim Kardashian must read The Hollywood Gossip.

A day after we ran a photo of Kardashian's mammoth backside, the sex tape star playfully gave cameras an even better view of her rear end outside the night club Koi.

Let's just say Reggie Bush won't have any problems finding this end zone... if you know what we mean!

The NFL star may have some competition from Sir Mix-A-Lot, however. That is, if Ray J doesn't come running back first. After all, one can only go so long without feeling a need to tap this again.

This is one gigantic ass that even a pregnant Salma Hayek is jealous of.