A dominatrix is a woman who takes the dominant role in BDSM activities. A dominatrix might be of any sexual orientation, but her orientation does not necessarily limit the genders of her submissive partners. The purpose of a dominatrix may not even involve physical pain toward the submissive; her domination can be verbal, involving humiliating tasks, or servitude. A dominatrix is typically a paid professional (pro-domme) as the term dominatrix is little-used within the non-professional BDSM scene. (Wikipedia)
