I will knee your balls back up into your stomach

In a dimly lit room, she stands over him, her eyes gleaming with anticipation. He lies on the floor, vulnerable and at her mercy. With a wicked smile, she raises her knee, aiming it precisely at his groin. The room falls silent as she descends, her movement deliberate and precise. He braces himself, his muscles tensing as her knee makes contact with a brutal, merciless force. The pain shoots through him, and his groans fill the air as he clutches himself. She watches, her expression a mix of pleasure and dominance, knowing she has the power to control his agony and ecstasy. The room echoes with his strained breaths, a testament to her unyielding control and his utter surrender.