My sister suddenly showed up at my place, saying, "You must be tired from work! Look at my panties and relax!" She flashed them at me, and I couldn't help but peek. But I regained my composure! As I was taking a bath, she appeared naked, saying, "Let me wash your back!" Her developing body made my crotch tingle! I couldn't resist touching her breasts and her tight ass anymore! I ended up having sex with my sister!
