A slave's worth is measured in his ability to endure, and this one is found lacking. His tiny balls are a disappointment to the mistress, a femdom goddess who demands only the finest, most submissive playthings. She sets about correcting this deficiency, subjecting him to a brutal, humiliating session of ball-busting. She grinds her heels into his tender sack, relishing his cries of pain. She employs a variety of tools, from heavy boots to crushing weights, until the slave is reduced to a whimpering, sniveling mess. But the mistress is not finished; she forces him to worship her feet, his pathetic, abused balls a constant reminder of his place.