Under the watchful eye of her femdom, a submissive male is bound and gagged, his body tensing in anticipation of the intense pleasure-pain to come. The femdom, dressed in latex, teases him with a strapon, tracing the head along his ass crack before slapping his balls. She secures a chastity device, heightening his anticipation. She straps him into the Sybian machine, his hard cock pressed against the vibrating saddle. She slowly turns up the power, making him moan through his gag, his prostate beginning to throb. She lubes up an anal probe and, with expert precision, inserts it, finding his prostate and massaging it expertly. His body convulses as she milks his prostate, making him cum hands-free, his body drenched in sweat and cum.