Bound and gagged, Becca Diamond is at the mercy of the machine, its piston-like thrusts driving into her throat. Her master, unseen, controls the rhythm, pushing her limits. Becca's eyes roll back as she struggles to breathe, saliva dripping from her chin. The machine's rough texture against her sensitive flesh sends jolts of pleasure through her, her body writhing in its restraints. The master's voice echoes, 'Take it, slut. Take it all.'