Mastering Masturbation
A man, known only as the Pain Master, takes center stage in his dimly lit, wood-paneled dungeon. He's a picture of concentration, his muscular frame tensed as he slowly drags a sharp, serrated metal wheel down his chest, leaving a trail of red welts. His cock, thick and hard, twitches with each touch of the wheel. He groans, a sound of pleasure laced with pain, as he grips his shaft, stroking it slowly. His other hand keeps the wheel moving, now down his abs, tracing lines of fire. His breath comes in ragged gasps, his body covered in a sheen of sweat. He leans back, his hand moving faster, the wheel now resting on his thigh. His groans grow louder, more urgent, until with a final, guttural cry, he comes, his cum shooting out in thick ropes, painting his chest and abs.