Top, bottom, switch

Roles in BDSM practices

The terms top, bottom, and switch are used to describe roles during a sexual act, or they may more broadly denote a psychological, social, or sexual identity, or indicate one's usual preference. The terms top, bottom, and switch are also used in BDSM, with slightly different meanings. In BDSM, a top is the person doing something to someone else, and a bottom is the person receiving that act. In both contexts, the terms top and bottom refer to active and passive roles, not to who is physically on top in a particular sexual act. A switch is someone who can act as both a top and bottom. The older term versatile is sometimes used instead of switch.

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