The teen's soft, pillowy lips part, her tongue flicking out to taste the pre-cum beading at the tip of her grandpa's throbbing cock. She's never seen one up close before, let alone touched one, but she's eager to learn. She takes him into her warm, wet mouth, her head bobbing up and down as she tries to take him deeper. The grandpa's hands tangle in her hair, guiding her, encouraging her. She can feel him pulse against her tongue, the taste of him salty and unfamiliar. She's determined to make him cum, to swallow every drop, her young body buzzing with a new kind of desire.