Igby Goes Down (2002) – Amanda Peet, Claire Danes
Igby gets to bang the mistress of his godfather. But his girlfriend also cheats on him and dumps him for his older brother.
USA
American Blonde (1994)
The couple Leo and Luna picks up other women to have sex with them. One of these women is Daisy, who has commitment problems with her boyfriend. Leo starts falling for Daisy so complications ensue.
5 to 7 (2014)
A French wife dates and bangs her young lover with her French husband’s consent, but they can only meet between 5 P.M. and 7 P.M. each evening.
Last Night (2010) – Keira Knightley, Eva Mendes
A wife gets jealous of her husband’s pretty co-worker so she uses this as an excuse to date her ex and make out with him.
Valley of the Dolls (1967)
Three young women in show business cheat on their partners in one way or another.
Fever (1991) – Marcia Gay Harden
Ray gets out of prison and wants to get back with Lacy but she is already married. He informs Lacy’s husband that he’ll be seeing her in the next days to try to win her back. Of course, Lacy’s husband is pissed. Ray scores a bit when Lacy makes out with him.
Chicago (2002) – Renée Zellweger, Catherine Zeta-Jones
A wife who dreams of becoming a star bangs a furniture salesman because he told her that he’s got contacts in the show business.
Old School (2003)
A husband comes home and catches his wife about to have a threesome with a blindfolded couple.
American Reunion (2012)
An ex-couple rekindles their feelings for each other during their high school reunion, to the chagrin of their current partners. Plus, a girl just turns 18 and she wants her former male babysitter whom she had a crush on to devirginize her instead of her boyfriend.
Careful, He May Be Watching (1987)
By night Jane Smith is a happily married housewife, satisfied with taking care of her husband Bill, a pilot. But by day she’s Molly Flame, a porn star with a reputation for doing anything, anywhere, anytime, with anybody.