Terror Express (1980)
A wife screws a thug in the powder room of a train. She is impressed by his youth and brazenness, in contrast to her old husband. But when another pal of his joins in for a threesome, she doesn’t like it much.
Milk the Maid (2013)
A son tells his dad that his stepmom has been wearing more make-up and her pairs of underwear have been dead sexy lately, indicating that she may be having an affair.
Das beste Stück (2002)
A guy comes home to find his girlfriend riding some other guy’s dick in their bedroom.
Seduce & Swindle (1996)
An old conman competes with Ikki, a young conman. He tries to seduce Ikki’s current girlfriend whom Ikki intends to swindle but falls in love with instead.
Motel (2015)
A husband sees his wife kissing a male guest on the rooftop of the motel that they own.
Maschio latino cercasi (1977)
A wife gets screwed in front of her tied husband, a couple swings, etc.
Dear Irene (1971) aka Kære Irene
A wife screws a guy who is in love with her but he wants something more serious than that. Also, she screws some guy in front of her husband during a game of “spin-the-bottle.”
The Escape (2017)
A wife cries and calls her cuckolded husband for emotional support when a random guy she met in Paris, whom she thought she made a deep connection with, only used her for sex.
Tsumugi (2004)
Sora Aoi is in an affair with both her teacher and her classmate.
Janus: Two Faces of Desire (2014)
A professor’s wife cheats on him with a younger man because he can’t get it up for her, but he has no trouble getting it up for a younger, hotter dance student of his.