A submissive kneels before his femdom, eyes downcast, hands bound behind his back. She sits on a plush chair, legs crossed, a textbook of cum-eating instructions open on her lap. "Lesson one," she begins, "making you cum on command." She picks up a remote, turning on a vibrator nestled against his prostate. He gasps, his cock hardening. "Jerkoff instructions," she says, handing him a bottle of lube. He coats his cock, starting to stroke. "Faster," she demands, flipping through the pages. He obeys, his breath coming in ragged gasps. "Cum," she orders, pointing to an illustration in the book. He groans, his body shaking as he cums, following her every instruction.