A pervert on a crowded train deliberately shook his knees at a female high school student in front of him to induce an orgasm! (AP-211)

In a crowded train where everyone was crammed together, I deliberately groped a female high school student in front of me by pressing my thigh against her crotch and shaking my leg! After her underwear got wet from my knee rubbing against her and my legs went weak so I couldn't stand up, I went at it until I was satisfied!