Charlie Sheen

Charlie Sheen is sneaking off to meet a lingerie model while his wife, Brooke Mueller, thinks he's in rehab, In Touch Weekly reports, in an exclusive given to PopEater.

According to sources, he's been seeing model Angelina Tracy, and using a fake moustache to disguise himself from the paparazzi when he visits her home.

However, his rep disputes the accusations. "[S]ince Sheen knew he was being followed and how this would look, he wore the moustache in a tongue and cheek disguise gesture," his rep tells Access Hollywood.