Kim Kardashian naked on W magazine cover

'I play into the perception of me, but it's not really me,' reality star saysKim Kardashian — who famously regretted posing nude for Playboy — is stripping down again.Wearing only silver body paint, the E! reality star, 29, appears on the November issue of W .PHOTOS: Kim's TMI TwitPicsIn the issue, she opens up about her public perception."I'm not a drinker, and when I'm up on the table dancing,