BDSM
Bondage, Discipline, Sado-Masochism – a catch-all to refer to the various aspects of negotiated, mutually consensual exchange of power between two consenting adults. To divide in a Sub (submissive) and a Dom (dominant). But please forget Fifty Shades of Grey, rather think of Secretary by Steven Shainberg or Venus in Fur by Roman Polanski, they are so much better!