55T038006 My parents remarried, and my ex-girlfriend from the swimming club, who still had tan lines, became my stepsister. (Shiraishi Momo) - Momo Shiraishi

My step-sister, who was born when my father remarried, turned out to be my ex-girlfriend and a junior from the swimming club, with whom I'd grown distant after she moved. I kept thinking about the past and desperately tried to get back together, but she wouldn't listen. Then, one day, my stepsister broke up with her boyfriend, and that's when our incestuous sex life began! Her slender body still bore tan lines, and she reacted sensitively, deepening our bond with each encounter. Today, I had sex with my ex-girlfriend, now my stepsister, again, sneaking around behind our parents' backs!