The cuckold's training begins. His mistress, a cruel and beautiful femdom, makes him watch as she invites her lovers to the dungeon. One by one, they fuck her, their cocks stretching her tight holes while he's forced to kneel, his own pathetic erection throbbing in his chastity cage. She laughs at his discomfort, delighting in his humiliation. "This is your purpose now," she purrs, "to serve me, to watch me, to be my cuckold slave boy."