The boy's thick, curved penis twitches in his hand, eager for the cruel treatment he's about to bestow upon it. He wraps his fingers tightly around the shaft, twisting and pulling in a punishing rhythm. His balls tighten, drawing up close to his body as he fights against the urge to cum too soon. The head of his cock, a deep, angry red, weeps with desire, begging for mercy, but the boy continues his relentless CBT, determined to push himself to the brink of ecstasy.