A thick, black cock glistens with pre-cum in the dimly lit room as a leather-jacket-clad brother strokes it hungrily. His sister, captivated by his size, can't help but watch. She licks her lips, imagining the taste of his salty load. He pumps faster, his breathing heavy, and with a final grunt, he unleashes a torrent of cum onto her jacket, leaving it dripping and stained.