Innocent friends, curious and alone, stumble upon a secluded cave. As they explore, their hands graze, breaths deepen, and eyes meet. The teen girl, her heart pounding, tentatively reaches out to touch her friend's bulge, feeling his hard cock strain against his jeans. He gasps, then guides her hand, teaching her to stroke him. She unzips, and he pulls out his thick, veiny cock. She licks her lips, takes a deep breath, and wraps her mouth around him, gagging slightly at first. He groans, fucking her face gently. She pulls back, spits on his cock, and jerks him off until he cums all over her tits.