Kim Kardashian just loves to get naked for the cameras. The voluptuous daughter of O.J. Simpson lawyer Robert Kardashian recently stripped down for Playboy. “The photos have been already shot. I don’t know if they show everything,” a source tells us. Presumably, the snaps won’t show as much as the notorious sex tape Kardashian made with rapper Ray J. Meanwhile, Kim was partying Saturday with Denise Richards at the Playboy Mansion at a benefit for the Nicole Brown Foundation.