Effie Gray (2014) – Dakota Fanning
An old, rich writer marries a young girl but does not consummate their marriage. The young girl falls for a painter while she and her husband are together with him in a remote cabin somewhere in Scotland.
Love (2015)
A girlfriend reveals to her boyfriend that she cheated on him when she catches him screwing a girl at a party. They also attend a swinger’s party and have a threesome with their hot, young neighbor.
Untold Scandal (2003)
A wife of a Lord tells her cousin that he can screw her if he can seduce and impregnate the future concubine of her husband. The cousin shifts the bet to a chaste widow, but also screws the future concubine, anyway. The wife takes on a lover herself.
Spanking the Monkey (1994)
A wife broke her leg and has her son help her do things for a while, including assisting her in the shower. One thing leads to another and they have sex.
Tobacco Roody (1970) – USA
A wife is screwing the sheriff while her hillbilly husband is busy screwing their stepdaughter.
World of Sexual Fantasy (1976) aka Fantasm
Husbands play poker with their wives as bargaining chips. The stakes are more than just stripping.
Dial M for Murder (1954) – Alfred Hitchcock
A husband plans a perfect murder for his cheating wife.
Someone Down There Likes Me (2009)
A fully awake but paralyzed man watches helplessly as his wife brings home men to screw in their bedroom.
A Change of Seasons (1980)
A married couple brings both of their lovers with them on their vacation.
The Breastford Wives (2007)
A married couple cheats on each other when they are seduced by Breastford town’s mind-controlled, sex-crazed women.