Unbeknownst to him, someone's watching through the slightly ajar door as he pleasures himself. The intruder can't help but stare, entranced by the sight of his thick shaft sliding in and out of his fist, his moans of pleasure filling the room. The man, lost in his own world, doesn't notice the door creaking open a little wider, the visitor's breath hitching as he watches him bring himself to a climax, cum spurting out, coating his hand and cock.