An older sister who is years older and takes good care of me has returned after several years, and she forcibly invites me, a student, to take a bath with her, still treating me like a child... "If you don't clean yourself, you won't be popular." She takes such good care of me that she even peels the foreskin and washes it, but when she sees my dick getting bigger and harder than it used to be, she looks at me with a lewd gaze and I cum violently with her handjob! In the meantime, I've grown up, and I've become a man and a woman with my older sister who has become horny with my grown-up dick and semen...!
