Switch (BDSM)
In the field of sexuality, a switch is someone who can change from one sexual role to another.
In anal sex among men, a switch is someone who participates both in the penetrative and penetrated roles at different times.
In BDSM, a switch is someone who participates in BDSM activities as both a top and a bottom. Switches are very common; partners may switch roles based on mood, desire, or being with a different partner. They might also switch because both partners in a relationship are (for instance) bottoms, and they will take turns at 'switching' to top so that they can continue their activities. A person who engages in self-bondage can be viewed as taking both roles simultaneously.
The term switch might also be used to mean a thin wooden stick used to cause pain.
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