A young teen's curiosity leads her to explore her grandpa's bedroom one evening. She finds him alone, watching TV, and seizes the opportunity to act on her taboo fantasy. Kneeling before him, she unzips his pants, her small hand fishing out his already hardening cock. She tentatively licks the tip, tasting the pre-cum beading there, before taking him into her warm, wet mouth. Her head bobs up and down, her hand stroking the shaft in rhythm with her sucking. The grandpa's breathing grows ragged, his hips lifting off the couch as he nears climax. With a final thrust, he comes, filling her mouth with his salty seed. She swallows, a look of satisfaction on her face.