In the dimly lit room, a lone figure sits, legs spread, cock throbbing. His balls are bound tightly, a rope pulling them down, intensifying every sensation. He strokes slowly, his hand a tight fist around his engorged shaft. Precum beads at the tip, a testament to his arousal. His breath hitches as he picks up the pace, the rope on his balls sending jolts of pleasure through him. He can feel the cum building, his hand a blur now, his grip brutal. With a grunt, he comes, thick ropes of cum shooting out, painting his abs, his hand, the floor. He leans back, spent, his body tingling.