Someone named DJ Stolen has posted dirty pictures of the pop star's identical twin sister -- I'm not going to link to them because this is a family friendly site but if you want to go hunting that's your business (but they are really NSFW) – claiming that the girl in the shot is Ke$ha. There's also word that a video is lurking out there somewhere too.
Apparently Ke$ha's reps have been quick to deny that she's the girl in the shots. They told GossipCop.com "This is not Ke$ha in the photos."
So THAT'S where she draws the line. Huh. You've been wondering haven't you?
She better talk to that VERY IDENTICAL TWIN though, so this doesn't happen again.