Making the best of the Covid lockdown

I'm Gerard 21 unemployed due to the lockdown. I live with my mother Joyce 40 and gran Heather 60. My father cleared out years ago and haven't heard from him since. After several days of the lockdown, I was starting to climb the walls and hearing moaning coming from my mother's room. I went to see if she was okay and walked in on her masturbating herself. I got an instant hardon and I was only wearing boxer shorts and my hard cock poked out of the fly. Joyce saw me and was at first shocked, but on seeing my hardon became horny again and asked me to join her on her bed. I joined her and she played with my cock and so I started to feel her up and just asked could I fuck her. She was silent for a time and then said okay why not. That was the start of our fucking, but being 3 people in a small house. It wasn't long before Heather found out and wanted to join in with us. That was back in late March and Joyce got pregnant by me, as we slipped up once or twice. I'm still fucking them both and quite enjoying the idea of becoming a father.