A 16-year-old junior high school girl with small breasts and short figure. She is naked, with a cute and young face, smooth pussy, no pubic hair, and fair skin. She masturbates at the table of the sunny Chinese classroom, surrounded by students who are studying. Her classmates were listening to the teacher's lecture on the podium, and no one noticed the girl. The girl's upper body is straight, her legs are kneeling, her feet are behind her legs, and her left hand is behind her back. The translucent liquid flowed out of the girl's vagina, and her mouth opened slightly.