Schweigeminute - 2016  ( a minute's silence )

https://www.imdb.com/title/tt5506088/?ref_=nv_sr_srsg_3

https://m.vk.com/video-48713168_456239455

She's not married, so it's just teacher / student topic

**no subs**

Kreola - 1993

https://www.imdb.com/title/tt0195007/?ref_=nv_sr_srsg_0

https://www.erogarga.com/kreola-1993/

A Teacher - 2013

(not the series but a movie )

https://www.imdb.com/title/tt2201548/?ref_=fn_al_tt_2

https://vikv.net/watch/a-teacher-2013-17111

She is not married so technicaly not cheating, but a lot of people were asking for movies about young/old - teacher/student so tought I share it.

Laia - 2016

https://www.imdb.com/title/tt5101196/?ref_=fn_al_tt_1

https://www.erogarga.com/laia-2016/

Cheating wife, also great scenes with husband

Karina, Objeto do Prazer - 1982

https://www.imdb.com/title/tt0260998/?ref_=nv_sr_srsg_0

https://www.erogarga.com/karina-objeto-do-prazer-1981/

Ensalada Baudelaire - 1978

https://www.imdb.com/title/tt0077506/?ref_=nv_sr_srsg_0

https://www.youtube.com/watch?v=5wDqtLg3SwU&ab_channel=semslsingermovie

A couple is held hostage on their yacht. Husband has to watch how they humiliate his trophy wife. She gets fucked out of sight and she likes it.  **no subs**

She hate me - 2004

https://www.imdb.com/title/tt0384533/?ref_=fn_al_tt_1

https://vikv.net/watch/she-hate-me-2004-17715

Lesbian couple ask a guy to impregnate one of them, the one not getting pregnant wants to do it the medical way, the one getting pregnant just wants to fuck. Afther that a few more scenes with different women.

Havoc - 2005

https://www.imdb.com/title/tt0285175/?ref_=nv_sr_srsg_1

https://vikv.net/watch/havoc-2005-38547

Two girls who both have boyfriends meet a hispanic gang, they end up in bed with them. One girl cheats. 

Eye of the needle - 1981

https://www.imdb.com/title/tt0082351/?ref_=nv_sr_srsg_0

https://vikv.net/watch/eye-of-the-needle-1981-14209

Grumpy husband in wheelchair, dissatisfied wife cheating with stranger

@roger-gatz

Thanks for the link and welcome ?