In a dimly lit dungeon, a bound submissive, his cock rock-hard, awaits his Mistress's return. She enters, her heels clicking on the cold stone floor, a riding crop in her hand. She runs it along his chest, his abs, his thighs, avoiding his aching cock. "You will not cum until I say so," she purrs, her voice laced with dominance. She mounts him, her hot, wet pussy swallowing his cock, and rides him hard, her tits bouncing. She leans back, her hands on his thighs, using him for her pleasure. She smacks his chest with the crop, leaving red welts, as he struggles to hold back his orgasm. Suddenly, she dismounts, leaving him panting, and commands him to fuck her ass instead, his cock lubed up with her juices.