I Am Love (2009) – Tilda Swinton
A rich man’s wife likes the taste of a chef’s cooking, so she tastes the chef too.
romance
Friends with Benefits (2012)
Alex and Jessica pretend to be married to join a swinger’s club. Meanwhile, a husband in the club gets jealous because his wife is always screwing the same hot woman. From New Sensations
A Man and a Woman (1993)
A man evades a debt collector, so the debt collector sleeps in his house to wait for him and ends up screwing the man’s girlfriend.
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.
Up in the Air (2009)
A married woman cheats during her business travels.