Cukball, a defiant Brazilian slave, is bound and gagged, his fate in the capable hands of the ruthless Domina, Estrella Star. She dominates him with a fierce, unyielding intensity, using her boots, whip, and bare hands to inflict punishing blows on his balls, reducing him to a whimpering, humiliated wreck. The bondage is intense, the training rigorous, as Estrella Star transforms Cukball into her perfect, submissive plaything.