X-Files' Fox Mulder loved his porn. David Duchovny apparently can’t get enough of the real thing. The actor has checked himself into a rehab center for sex addicts, asking for “respect and privacy” for his family. Duchovny and wife Téa Leoni have a daughter, 9, and son, 6. Ironically, the X-Files star recently won a Golden Globe for playing a sexed-up struggling writer on the Showtime series Californication.