On the commuter train, without drawing attention from others, show only the target female high school student your dick, making her blush while being captivated by it. Use this as material to masturbate in front of her. Through close contact or kissing, gauge the target's reaction, and once you realize she can't refuse, surround her with your male friends, strip her naked, and rub your dick against her pussy. The confusion of shame and excitement flips the high school girl's arousal switch, making her stroke that dick with her hand, and eventually bring it to her mouth…
