After years apart, he returns home to find his adult stepsister has become a thick, shameless shut-in running a secret social-media account. Peeking into her room, he catches her streaming an explicit show with the huge breasts that fund her lavish habits. When she spots his erection, her hunger for raw cock switches on. Their outrageous life includes a filmed late-night titjob ambush, a handjob while washing him in the bath, and repeated reverse-rape role-play ending in creampie after creampie, leaving his cock no time to recover.