In the dimly lit dungeon, a dominant woman, Mistress M, rules her bound submissive. She teases his senses with a soft touch, then sharply contrasts it with cruel lashes from her whip. His cock hardens as she slaps it, groaning in pain and pleasure. She rewards his endurance with a thick, veined dildo, pushing it deep into his ass. His cries fill the room as she fucks him, interspersing thrusts with cruel strikes, training him to take her every command.