"I don't have a sex tape."

If you've ever gotten busy when the camera was rolling, don't try to deny that you have a sex tape — especially if you're famous. Stars (and wannabe stars) Kim Kardashian, Paris Hilton, Britney Spears and Lauren Conrad all played dumb. Is there anyone out there who still believes in their video innocence? We're sick of the excuse and don't believe it anyway.