In the dimly lit dungeon, the femdom takes center stage, her heels clicking on the cold stone floor. She beckons her slave, bound at the wrists, towards her. With a smirk, she wraps her manicured hand around his throbbing member, expertly teasing him to full mast. 'Today,' she purrs, 'we begin your permanent training.' She produces a gleaming chastity device, her eyes gleaming with anticipation. The slave whimpers, knowing the pleasure and pain that awaits.