D/s BDSM

On a physical level, BDSM "sensation play" often involves inflicting pain, even if without actual injury. This releases endorphins, creating a sensation somewhat like runner's high or the afterglow of orgasm, sometimes called "sub-space", which many find enjoyable. Some writers use the term "body stress" to describe this physiological sensation. Perhaps more eloquently, the philosopher Edmund Burke defines this sensation of pleasure derived from pain by the word sublime[1]. This experience is the motivation for many in the BDSM community but is not the only motivating factor. Indeed, a strong minority of BDSM participants (especially "submissives") may well participate in a scene that they do not derive any physical pleasure from. This is done in order to provide their "Dominant Master/Mistress" with an opportunity to indulge their desires or fetishes.

In some kinds of BDSM play, the "top" (usually a dominant partner) applies sensation to the "bottom" (usually a submissive partner) by spanking, slapping, pinching, stroking or scratching with fingernails, or using implements like straps, whips, paddles, canes, knives, hot wax, ice, clothespins, bamboo skewers, etc. The sensation of being bound with rope, chains, straps, cling wrap, handcuffs or other materials can also be part of the experience. The tools of BDSM play encompass a wide variety of items from specifically designed implements to ordinary household items, known as "pervertibles."

A pleasurable BDSM experience is thought to depend greatly upon a competent top and the bottom attaining the correct state of mind. Trust and sexual arousal help a person prepare for the intense sensation. Some have even gone so far as to compare adept BDSM play to musical composition and performance, each sensation like a musical note. Likewise, different sensations are combined in different ways to produce the total experience.