FERA-146 Son's friend saw the beautiful mother's embarrassing, tacky underwear, Saiki Oishi

When I went to Oishi's house to play. Yokota witnessed Oishi's mother, Saki, in her underwear. Big bread that completely hides your stomach. Yokota was shocked by the design that had nothing to do with fashion. Her unprotected underwear, which she did not expect to be seen, was much more raw and erotic than the underwear of beautiful women seen on the Internet. From that day on, Yokota visits Oishi's house and steals Saki's underwear. And at some point, he came to think that Saki was the only person to give his virginity to.