Mistress Xi is a very creative sadist. This slave has presented his cock and balls to her on a platter, and she is ready to make him squeal by using various techniques. She paddles his balls and separates them, punching them with her fist, and pinching and stretching the skin of the balls till their owner whimpers in pain. She uses the platform of her shoe to squish and flatten his testicles, then also makes efficient use of her stiletto, digging into his cock and balls from various angles. The slave, despite the extreme pain, is getting a hard on, all the better to further torture! Xi then kicks his balls repeatedly with the platform of her shoe, sending him into agony, then applies her knee full weight on his balls. She has him squealing like a struck pig and singing in pitches only a juvenile choir boy could ever hope to attain. And Miss Xi is only getting warmed up.