In a BDSM dungeon, Miss M takes charge, her domina instincts surging. She commands her slave, P, into a chastity cage, his cock and balls locked away. She teases his asshole, running a finger around the rim, making him squirm with anticipation. Miss M lubes up, slowly inserting one, then two fingers into his tight hole, fucking him gently. She adds a third finger, stretching him, preparing him for her next move. She removes her fingers, replaces them with a curved dildo, and with expert precision, milks his prostate. P's body convulses as he's brought to the brink of orgasm, only to be denied by his mistress.