I became the owner of an ass

I'm going to tell you the true story of how I became the owner of my mother's friend's ass. This woman, I'll call her "S," has always been quite naughty. I remember when I was a kid, I would secretly overhear her talking dirty among a group of my mother's friends. And when I was about 16, she had some really unusual games, lol. She would suddenly come into my room and say, "Aaah, I almost caught you playing bingo outside." But for some reason, my family and hers drifted apart when I was 18, and I haven't seen her in person since.