In a dimly lit room, a sweaty, muscular bottom grunts and groans as he clenches and relaxes his asshole, the tight ring of muscle contracting rhythmically. His body glistens with sweat, and his face is a picture of intense concentration. He's alone, lost in his own world of pleasure, his hand working his thick, hard cock in time with his anal contractions. The room fills with the sounds of his labored breathing and the wet, slapping sound of his hand against his cock.