Blame it on the Pandemic

Because of the pandemic I had stay at home all the time with my mother 44 and sister 25. I'm 27 and my father departed years earlier and hasn't been missed at all. I had done well at university and had gotten a great job and was saving to buy myself a home and have my mother and sister live with me instead of renting. My sister was in her last year of university and like me wasn't that great on the dating scene. In the lockdown I got bored fairly quickly and started watching porn on my laptop and got caught my sister who was curious and asked could she also watch it with me. So, we started watching porn together and progressed to playing with each other then we had sex and then had sex again That time the condom broke while I was Cumming and inside her. She let out a scream and our mother caught us; we got a lecture about incest and how we might have started a baby. The next couple of days we were quieter than normal for us but it didn't last. I ordered in new condom instead of the old one I had gotten 5+ years before at gas station toilet machine. So, we were back fucking, our mother suspected as much and again caught us. But this she joined in; we kept up a regular sex life after that and continued after lockdowns were history. My sister did get pregnant but still finish university and early this I got my own house. I owe a great deal to the bank of course, but with mother helping and sister working from home via her laptop, we're doing great, our daughter is very healthy. We're still sharing the same bed and my sister wants another child and mother is supportive as she like being a grandmother.