Silsila (1981)
Amit marries his deceased brother’s fiancee out of duty and leaves Chandni. Chandni marries somebody else. They cross paths later and have an affair.
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.
Anyone You Can Do… I Can Do Better! (2004) – Hentai
A wife gets into a sexual competition with her daughter over her private tutor.
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.
Headhunters (2011)
Roger has a tall, model-type, trophy wife and fears that she will get fucked by some tall, handsome guy if he doesn’t keep her happy with money. He is right, because one day, a tall, handsome guy did fuck his wife.
XVSR-130 Sweet Daughter-in-law – Beautiful Wife Of Functional Novel Son Temptation – Ayano Nana (2016)
A young wife dresses provocatively yet acts demurely and seduces her father-in-law after drinking with him.
Elven Bride (1995)
A non-human doctor uses both his profession and his magical powers to seduce and bang his patients that are mostly hot wives.
Hot Sex Talk (2015)
A guy proposes to his girlfriend, unaware that somebody else’s dick was just inside her a couple of minutes ago.
Brothers (2004) aka Brødre
A wife thinks her military husband died in Afghanistan and makes out with her brother-in-law on her birthday. Her husband returns and becomes paranoid, asking her if she fucked his brother while he was gone and presumed dead.
Resolve (2014)
A female who is in a complicated relationship screws the boyfriend of her officemate.