In a game of taboo, the uncle's cock becomes the ultimate prize. The niece, eager to win, plays dirty, her hands roaming his body, her mouth finding his stiffening member through his pants. She unzips him, her eyes wide with curiosity and excitement as she sees his cock for the first time. She strokes it, feeling its heat, before taking it into her mouth, her tongue swirling around the head, tasting the salty pre-cum that leaks out. He throws his head back, groaning, as she eagerly sucks him, her hands cupping his heavy balls.