I love my son's penis second update

I started fucking David after catching him masturbating and he became my lover. I thought I was his only lover until I found out he was fucking Susan our born-again Christian neighbor. I felt a little jealous at first but got over it rather quickly. Anyway, I wanted David to start dating and get over his shyness and I had succeeded. With him fucking Susan the proof. But Susan is too old to have grandchildren for me. Luckily, she has a daughter Gwen a year younger than David and he has also bedded her. But not having to take precautions because Susan and I were passed having babies. He got Gwen pregnant and married her and both are still going to university and the 4 of us are all living together in my house as it is the bigger of the 2.