Three months ago, my father suddenly got married. I couldn't hide my confusion about living with Ai-san, his remarried partner who is close to my own age. Around that time, I found out that my old man and Ai-san's fertility treatments weren't going well. I started thinking to myself, "If I could change things, I'd love to have sex with Ai-san," and then... Ai-san suddenly came into my room and started stroking my cock! It seems that Ai-san, whose sexual frustration had built up over time, decided to try for a baby using my cock instead of my useless father...
