In the shadows, an unseen figure revels in his desires, his massive cock a tool of pleasure. He grips it firmly, his hand a tight fist around his shaft. He pumps slowly, building up a rhythm, his mind filled with taboo thoughts. His body responds, his cock hardening, his breath coming in short gasps. He's lost in his own world, his hand a blur as he races towards climax. His body tenses, his grip tightens, and with a final, desperate thrust, he comes, his cock pulsing as he spills his seed.