The uncle, a burly, dominant figure, commands the nephew to strip. The nephew, nervous but excited, complies, his lean body trembling with anticipation. The uncle, now naked, reveals his massive, uncut cock, already hard and leaking pre-cum. He pushes the nephew onto the bed, spreading his legs wide. He teases the nephew's hole with his fingers, making him squirm. Then, he spits on his cock, rubbing it in before pressing it against the nephew's virgin entrance. With a low growl, he pushes in, the nephew's tight hole stretching to accommodate his thick girth. The nephew moans, his body tensing as the uncle begins to fuck him raw, his hips slapping against the nephew's ass, each thrust deeper and harder than the last.