The porno is aptly titled "Celebrity Pornhab with Dr. Screw," and in our behind-the-scenes footage, you'll see there's not much difference between the satirical XXX flick and the actual TV show -- except for the gratuitous sex, of course.
By the way, this is Carey's comeback to adult films. Dr. Drew frequently urged her to retire from skin flicks as part of her rehab. Guess she's skipping that step.
UPDATE: The real Dr. Drew just twittered about "Pornhab," saying, "For those of you wondering about my feelings about Mary Ellen Cook's [Mary Carey's] choice to mock : Res ipsa loquitur. Makes me very sad."