One day, I got a phone call from that man... A brute man I met when I was still an office worker... A man with extraordinary stamina who always plays with my body and climaxes inside me without using any contraception. My current husband showed up while I was out, carrying a slave vow that I had made in my youthful youth. He used it as blackmail material to expose his genitals in front of me for the first time in years, enjoying my reaction. His penis was bigger and harder than my current husband's. My uterus throbbed against reason, and I unconsciously accepted the man's erect penis. Even though I knew it was wrong, I couldn't stop my uterus from throbbing...