Bottom and submissive are widely used for those partner(s) in the relationship or activity who are, respectively, the physically receptive or controlled participants.
Whether it is a public "playspace"—ranging from a party at an established community dungeon to a hosted play "zone" at a nightclub or social event—the parameters of allowance can vary.
Some have a policy of panties/nipple tape for women (underwear for men) and some allow full nudity with explicit sexual interaction allowed.
This article is about consensual adult sadomasochistic activity.
For the medical condition involving non-consensual ideation or behaviour, see Sexual sadism disorder.
The fundamental principles for the exercise of BDSM require that it should be performed with the informed consent of all involved parties.