Uma, a novinho from the favelas, can't resist the urge to batendo - to masturbate - in the middle of the day. He sneaks into an abandoned building, his heart pounding with excitement and fear of being caught. Alone in the dim light, he unzips his pants, revealing his hard, eager cock. Uma spits into his hand, using it to lubricate his shaft as he begins to stroke. His other hand finds its way to his ass, teasing his hole as he picks up speed. The sound of his hand meeting his flesh echoes through the empty building, his moans growing louder, more desperate. Uma's body tenses, his cock pulsing as he comes undone, painting the walls with his release.