Bound at the wrists, the slave awaits his mistress's pleasure. She enters, her massive tits bouncing with each step, a wicked grin on her face. She straddles him, pressing her boobs into his face, smothering him in her cleavage. He gasps for air, but she doesn't relent, instead grinding her chest onto his mouth. She pulls back, her tits glistening with his saliva, and orders him to lick her pussy. He complies, his tongue darting between her wet folds, making her writhe with pleasure. She then sits on his cock, impaling herself, and rides him hard, her tits bouncing wildly, until they both collapse in a sweaty, satisfied heap.