After sliding his penis into J-series underwear on a crowded train, rubbing her vulva until he ejaculated, he wasn't satisfied and inserted his semen-covered penis inside her to ejaculate. (NHDTC-215)

He presses himself against the girl from behind in the immobile tram! He rubs his erect penis against her soft, panty-clad buttocks! After moving away, he thrusts in directly, engaging in panty sex! He ejaculates profusely into her vagina because it feels so good! But that's not enough... He uses the mixture of her vaginal fluid and semen to increase lubrication, then pursues unprotected penetration! He ejaculates inside her vagina without a condom, her sensitivity heightened by the friction!!