Quadrophenia (1979)
1979A chick has a boyfriend but she still flirts with another guy every time they come across each other and eventually makes out with him and then has sex with him in an alley while a riot is going on.
Actors: Phil Davis
Notes on a Scandal
2006A veteran high school teacher befriends a younger art teacher, who is having an affair with one of her 15-year-old students. However, her intentions with this new “friend” also go well beyond platonic friendship.