Devil in a Blue Dress (1995)
1995A chick rides Denzel Washington’s dick on the couch while her boyfriend lies passed-out drunk in the next room.
boyfriend is just in the other room
Prohibited Sex, Sweet Revenge (2015)
So-ri goes on a camping trip with her boyfriend Jin-wook, her best friend Mi-ra, and Mi-ra’s boyfriend, Gyeong-hoon. She catches Mira and Jin-wook having prohibited sex and gets her sweet revenge.
Voetbalvrouwen (TV Series) (2007)
2007A father and son swap wife and girlfriend nonconsensually. A soccer wife gets banged by a black stud in her bridal shower and later cheats with her husband’s soccer teammate who is also black. Etc..
Boku no Yayoi-san (aka My Yayoi)
2015A widow hooks up with her dead husband’s little brother and then cheats on him.
Countdown Conjoined
1995A chick has a threesome with her boyfriend’s son and a female she met on a bus. Also, a female student and her mother have sex with her female professor. Years later, the professor fucks the female student on her wedding day.
Room for Rent (1997)
1997Jessie lets Sandra and her boyfriend rent a room in their house for extra income. It turns out that Peter, Jessie’s husband, is an ex-boyfriend of Sandra that she still has the hots for. Sandra seduces Peter and starts an affair with him.
The Intended
2002A period drama/thriller about a surveyor and his fiancée who arrive in a remote Malaysian trading post and encounter a closed-fisted ivory trader and her ill-meaning family.
Erotic Nights of the Living Dead (1980)
1980While her boyfriend is not looking, a girl masturbates in front of the sailor they hired to take them to an island. She fucks him when her boyfriend gets off the boat later.
The Dirt (2019)
2019“Don’t ever leave your girlfriend alone with Motley Crue, ever. Because they’ll fuck her!” – Tom Zutaut, Elektra representative whose girlfriend got fucked by a Motley Crue member
Z for Zachariah (2015) – Margot Robbie
In a post-apocalyptic world, a black guy encounters a white chick surviving alone on a farm and they become a couple. But a white guy arrives and screws the white chick one night.