Five years ago, my wife and I remarried after both divorcing our previous spouses. She has a son from her first marriage, who is now an adult and already married. As a result, I have a distant, relative-like relationship with her son, seeing him only a few times a year. Though we were both older when we remarried, we surprisingly had great chemistry in bed, making love about once a week. However, since I've always disliked the idea of having children, I consistently used condoms to prevent any accidents. My wife had a close friend she met through a women's social group, and we became quite friendly with this younger couple. We often observed them closely and noticed an unusually strong chemistry between them, making our encounters with the pair something I genuinely looked forward to. Then one day, I witnessed something unbelievable—my wife in a shocking situation I never expected...