The Killer Is on the Phone (1972)
A wife who has amnesia can’t remember her current husband but clearly remembers fucking her lover.
non-nude
Thelma & Louise (1991)
A wife bangs a young drifter while on a road trip with her female friend. When the drifter meets the husband later, he tells him that he likes his wife and demonstrates to him how he fucked her by doing the fucking motion (thrusting his hips forward then back).
Thinner (1996)
A guy is cursed by a gypsy and he has to pass the curse to someone so that he will be freed from it. The one he will choose will die, of course. So he passes it on to his wife, whom he suspects of cheating on him.
A Fine Madness (1966) – Sean Connery
A psychiatrist catches his wife and his patient taking a bath naked together and having sex in the hospital’s ripple bath.
Adore (2013) – Naomi Watts, Robin Wright
Two mothers who are best friends since childhood fuck each other’s son.
3-Iron (2004) – South Korea
An abused housewife joins a young guy in squatting at vacant homes.
Confidentially Yours (1983) aka Vivement dimanche!
A guy is accused of murdering his wife’s lover.
Who Killed Cock Robin? (2017)
A guy drives his pretty co-worker home after a work party. He is able to console her on her boyfriend problems and as a reward, he gets to fuck her.
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.
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.