I wanted to NTR him, but instead my son chased after me and forced me into NTR. (Xiao Hua Nuan TYSF-031)

My father remarried, and his stepmother was a young, gentle woman with large breasts and a beautiful body. That stepmother was incredibly promiscuous, and my father, whose sex life was rather dull, couldn't satisfy her. Therefore, she secretly had sex with my brother without my father finding out. As a virgin, I saw this and also asked to have sex with my stepmother, just once, but I couldn't hold back. "Just once more..." we made that agreement, but in the end, she chased me around the house, relentlessly having sex with me until she was completely emptied of her semen.