Three months ago, my father suddenly got married. I couldn't hide my confusion as I lived with Ai, a new wife who was close to me. At that time, I found out that my father and Ai weren't trying to get pregnant properly. If I were to think about something that would make me change, I would want to have sex with Ai-san... Ai suddenly came to my room and started stroking my dick! Apparently, Ai, who had accumulated frustration, decided to replace her useless father and try to get pregnant with my dick...