I saw a movie about 20 years ago and remember it was a very erotic movie. Don't know the title though, or who plays in it. I believe the movie was made in the late '80s or early '90s.

The woman she's an aspiring actress who meets a guy who dares her into doing all kinds of things. In one scene she is “raped” in a bathroom from behind, her face is touching the mirror and when the guy leave, there are lipstick marks all over the mirror from her face. In another scene, the same woman is watching a dance floor of a club when a guy comes from behind, drops her pants around her knees and starts masturbating her. She is complacent and closes her eyes.