Katrina Ruivinha, the mistress of humiliation, welcomes Cukball into her lair, "The Pain Cave." She commands him to his knees, his tiny cock already hard with anticipation. Katrina begins her torments, spanking his balls with her firm hand, the sound echoing in the dimly lit room. She demands a pathetic handjob, laughing at his feeble attempts. Next, she straps on a thick dildo, fucking his face, dominating his mouth. Katrina whips out her massive strap-on, forcing it into his ass, cbt-style, as she laughs at his cries of pain. She finishes by grinding her boot onto his balls, degrading him further, as he begs for more.