In a dimly lit room, a stern mistress sits, eyes glinting with sadistic glee. Her slave, a trembling wreck, kneels before her, anticipating her next command. She smirks, "I bet you like eating your own cum, don't you, pet?" She strokes his cock, bringing him to the brink, then stops. "Clean it up," she orders, pushing his face down towards his glistening cock. He hesitates, but her slap spurs him on. He tentatively licks, then sucks, his own cock, gagging slightly. She watches, delighted, "Good boy. Now, swallow every drop."