Problem Solving

I heard my uncle Scott couldn't get aunt Hanna 37 pregnant as he had a low sperm count. I was in the next room while Scott and Hanna visited my mother Raylene. They didn't know I was home and with them talking of problems trying to have a baby. Scott was a heavy drinker and it was said to be the cause I heard. Both Hanna and Scott enjoyed a drink and would over indulge a lot. My father was away on a business trip and it was just me Jason 21 and Raylene home as my sister was at university. With Scott and Hanna staying a few days, they soon were drinking big as usual for them. On the third day Scott and Raylene went out to check on our family horses who were on a property owned by us but several miles from our house. I was out and arrived home just after they had left, I saw the car turning the corner as I got home. I went inside not expecting anyone to be there and and hearing some sounds I investigated and saw Hanna laying on their bed asleep, she had stayed behind because she had too much to drink. I could see she wasn't dressed much at all. Just a short dress and a top that barely covered anything and she I could her panties a thong I think its called. I got a hard-on looking at her laying there and went over and had a closer look and started to touch private parts. She didn't wake or respond at all and I got more adventurist and started to finger her. Still no reaction, I decided to go a little further and ended up fucking her and see didn't wake up and after I was finished I gave her vagina a wipe down with a wet cloth. An hour or so later Scott and and Raylene returned home and several hours after that Hanna was up and about. She didn't seem to know I had fucked her and a few days later they returned to their home. Several months later they had told everyone that Hanna was pregnant and we were all happy for them. Hanna thought that Scott was the father and at least of his sperm had done the deed. But as more test were done on Scott, it wasn't good news for Scott and they were they told he wouldn't be able to father more children. It must have been the last viable sperm left in him Hanna told Raylene. I'm the only one who knows that Hanna had other sperm inserted in her.