Closer (2004) – Natalie Portman
Guy no. 1 has an affair with Guy no. 2’s girl, while Guy no. 2 makes Guy no. 1’s girl do a strip show for him.
Cheating Girlfriend
Deviant Obsession (2002)
A female lawyer screws her boyfriend’s pal while the boyfriend is in jail. Plus, she poses as a stripper in a club to prove her boyfriend’s innocence.
Mobster’s Wife (1997)
A mob boss’ wife and his mistress cheat on him with two of his henchmen.