A bound submissive, her crotch tied to a machine, awaits her dominant's return. Her nipples are sucked and pinched, sending waves of pleasure through her. The dominant, a sadistic master of their fetish, teases her mercilessly, bringing her to the brink of orgasm only to deny her release. The machine takes over, fucking her roughly, her screams of pleasure and pain filling the room as she's punished for her transgressions.