The Fight

I'm Kevin 20 5'5" solid build, I work for the local council in the admin office, I've have been doing karate since I was 5 and am now an instructor after work. I have won trophies in State and National competitions. I live my parents Russell 44 insurance investigator and Joanne 41 bank officer. Russell and Joanne had 3 children I'm the youngest my brother and sister are twins an 22 and are away at university. Russell and Joanne drink a fair bit when they are a weddings and parties and such like. But rarely drink other than that, my brother Russell jr reckons they only drink a lot when the drinks are free. Early last month we all went to a wedding of dad's brother Walter's daughter Victoria, Russell jr and Mary both caught a train back to university after the ceremony before the wedding breakfast. My parents both drank a fair bit and on get back home started to argue. It soon got heated and Russell stormed off to a motel for the night. I went off to bed and Joanne start to drink again, couple hours later around 2 am I was awoken by a loud noise and went to investigate. Joanne had been in the bathroom and come back to get another drink and had fallen over the coffee table. She was naked, not even a robe or anything. She wasn't hurt so I help her to her feet and was taking her to her room. When she started calling me Russell and saying thinks like, you just want to fuck me don't you. I tried telling her I was Kevin, but it either didn't register with her or was too far gone to understand. Anyway in her room I pulled back the blankets and laid her down and she pulled down on top of her. Joanne is very good looking for her age and with her grabbing my cock. I got aroused and started kissing and feeling her up. She soon wanted to have sex and I fucked her. After she fell asleep and I went back to my room. I got up around 7am and had a shower, dressed and went to check on her. She was fast asleep, a couple hours Russell returned home and went straight into the shower and after went back to bed. Later I heard them having sex and then around 2pm they got out of bed all happy. Joanne, I thought didn't realise I was the one who fucked her earlier. After Russell went fishing with Walter as they did most Sunday afternoons. I was sitting watching TV and Joanne came in and said I don't want you telling your Dad, that we had sex. I thought you were him. I was really out of it, I know you didn't start it and you were overcome by sexual lust. I won't say anything I promise I replied. She continued saying I had sex again this morning with your Father mainly because I haven't been taking precautions and may get pregnant. So not a word and with that she gave me a hug and added You not a bad lover for you age and left the room. Joanne has missed a period and soon should have another, if not then she will get tested. As test the home test was inconclusive. If she is pregnant she will have the baby as it's against our beliefs to get rid of it.