Yoshikazu gets dragged along on a family trip with his aunt and uncle as his mother's bag carrier, and spends the start of it complaining. Then he catches sight of his aunt Tina's full, heavy body and that's the end of him. She notices him looking and isn't remotely bothered by it, and when he spies on her and her husband, she follows him afterwards. Tina isn't satisfied by her daily sex life, so she takes Yoshikazu's young, thick cock in her mouth and gets what she wants. And Yoshikazu, newly awake to sex, keeps thrusting like a monkey who's just discovered how.