Maybe one of you can help with this film I saw on HBO around 1982-1984.

Some fat guy who looked kind of like Dom DeLuise (as far as I can remember) was having sex with a bored looking woman. She had a cassette tape playing of her moaning, and looked really bored with the whole thing. After that, the guy stopped to get gas at a gas station, and the attendant asked if she gave him the moaning, quoting what had been on the tape. The guy asks if he was spying on them, and he says, “I didn’t have to. She has a tape and she only plays it for real losers.”

I’m pretty sure it might have been a raunchy comedy. I didn’t see anything like this in Dom DeLuise’s filmography.