NGOD-252 Stepmother in corrective underwear. Son can't resist the ripe body of a curvaceous woman and gets a full erection... Chinamin

My name is Yoshinobu. My father remarried and I live with my stepmother. Recently, my stepmother has started to worry about her lack of shape, and has started wearing a sample of "corrective underwear" on a daily basis, which she received as a gift from a mommy friend when she came to visit. She shows me her body lines and says, "What do you think of this underwear, Yoshinobu?", but to be honest, I don't know where to look...