Remember when Kim Kardashian was the less famous one in the duo of Kim & Ray J? Ah yes, those were the days. But underneath all that Spanx and pancake makeup and artificially heightened relationship drama, let us never forget why we became interested in Kim in the first place.

Namely, because she's a hot piece of ass. And this recently unearthed outtake from one of her SKINfamous Playboy photo shoots confirms that very sentiment. Now that's what we call keeping up with the Kardashians.

Thanks to Egotastic! for the uncensored pic!

See more spank-worthy pics and clips from reality superstar Kim Kardashian right here at MrSkin.com