Dirty Monogamy
This term refers to couples that engage in deviant sexual acts and practices for physical pleasure and/or a psychological thrill. The sexual acts and practices may involve other people, animals, and/or inanimate objects. Also, they may be consensual/non-consensual, distressing, extremely dangerous, disturbing, and/or socially inappropriate. Dirty Monogamy includes (but not limited to):
Voyeurism
Exhibitionism
Frotteurism
Fetishism
Pedophilia
Masochism
Sadism
Transvestism
Zoophilia
Necrophilia
Paraphilia NOS
Voyeurism
Exhibitionism
Frotteurism
Fetishism
Pedophilia
Masochism
Sadism
Transvestism
Zoophilia
Necrophilia
Paraphilia NOS
Examples of Dirty Monogamy are Couples that practice "swinging" or "mate-swapping", having sex in public places, performing BDSM, or role-reversal/role-playing.