When I went to my friend's house to play, I encountered his sister with her panties showing! My gaze was glued to her plump ass. Unable to forget the sight of her panties, I secretly peeked into her room and saw her bending over or lying down while cleaning or doing yoga, emphasizing her erotic ass even more, causing me to get an erection! Unable to hold back, I started masturbating, and while I was engrossed in it, I got caught…
