During my commutes to school on the train, my classmate Tojo Natsu secretly made me ejaculate inside her. (HMN-866)

Every morning, I spend an hour commuting to school on a packed train. Surrounded by a bunch of middle-aged men, the air thick with the stench of sweat, each morning is pure torture. However, one day, everything changed—I was jostled and pressed against her in the crowd, and it turned out to be my classmate, Tojo, whom I'd barely spoken to. Because of the train's swaying, I accidentally touched her butt, and the touch was so soft that it instantly gave me an erection, which she noticed. I thought I was about to face social humiliation, but what Tojo said was… “You can cum inside me”…!!? Huh?? From then on, whether on the packed train or after getting off, my daily routine of cumming inside her began—