It was reported that Monique Parent claimed in an interview that she and Jennifer Burton both actually masturbated to orgasm in the masturbation scene. This is an urban myth. Monique Parent never made any such claim. In fact, she told the website Mr. Skin in 2004 that it wasn't true. She'd never had an orgasm on screen and never would. It was just acting like everything else she did.
The Playmate displayed on the television, when Brad tells his story, is that of Candy Loving, Playboy's Playmate of the year for 1979.