With my parents' remarriage, I suddenly got a beautiful and well-built stepsister! As a teenager, my days are filled with excitement. Moreover, my stepsister, whether knowingly or unknowingly, shows me her underwear without any caution, and my erection is reaching its limit! When I tried to assault her while our parents were away, whether out of excitement or not, she got into the mood and I ended up being the one attacked.
