Gustavo, the master of self-pleasure, retreats to the bathroom for his daily indulgence. The sound of running water masks his moans as he strokes his throbbing cock, his mind filled with taboo fantasies. His hand, slick with lube, glides up and down his shaft, teasing the sensitive head. The tension builds, his body tensing, ready to release. With a final, forceful stroke, he spills his load, panting and spent.