My name is Toshio and I am 54 years old. My wife is Chisato, 49 years old. We have no children. We are both divorced and remarried five years ago. My wife has one son from a previous marriage, who is now grown up and married. So my wife's son and I were like distant relatives, and we only met once every few years. My wife and I were both older when we remarried, but we had surprisingly good chemistry at night, and we would have sex about once a week. However, I've always been uncomfortable around children, so I always used a condom during sex to avoid any chance of conceiving. Recently, my wife met a fellow wife at a women's group and the two of their families became good friends. From my perspective, they were a young couple, about the same age as our children, We got along really well, and I was secretly looking forward to meeting the couple... One day, I witnessed my wife in a shocking state...