During a sex education class, side view, A girl, penis, pubic hair, several sadistic boys taking pleasure in fucking her, heterosexual, sex, jet-black hair, open mouth, buttocks, vaginal penetration, doggy style, pussy, uncensored, realistic, naked, blue eyes, (wide-eyed expression), (bitter sobs), long hair, nose, erection, defloration, (defloration, blood flowing onto the cock), fluids, orgasm, writhing, sweat, trembling. She is performing fellatio on another man who has come to stifle the woman's moans. The teacher is grading the act.