Mistress tells her slave she is "hungry for man meat." Boy, is she. Mistress has her slave in a kneeling position that exposes his balls in a completely vulnerable way. Mistress steps on his balls, putting her full body weight on them. She crushes the slave's balls under her boots and grinds the cock with her sharp heel. Mistress is beaming. She obviously loves pulverizing her slave's helpless balls.