18 years ago, due to certain circumstances, I ended up taking in my friend's newborn daughter, and suddenly, I became a father (adoptive father) while still unmarried. That's why I'm still a virgin... I was planning to explain it properly on my 18th birthday, but recently, my daughter (stepdaughter) has been growing rapidly and is defenseless, so even though I knew I shouldn't look, I couldn't help but stare and get an erection... I couldn't hold back my urges and lost my virginity to my daughter (stepdaughter)...