I got my Mom Pregnant

I'm David 20 Long Story short, my mother Jane 39 came home drunk from her work Christmas party. I arrived home a couple minutes after from working the late shift. My dad left years before, so its just me and mom. I was going to go out with a friend, but they had rung and cancelled on my way home. So I decide to stay in, I found mom going to sleep on the lounge. I told her to go to bed, but she could barely standup. So I help to her room and I had my right arm around her hold her up as we walked to her. I could feel her breasts and I couldn't help feeling her up as we walked. On arriving at her room, I laid her on her bed and before I was to depart. I decided to feel her up a bit more, she moaned as I was doing it. So I opened up her blouse and unclipped her bra, I've always thought had a great pair of tits and I wasn't disappointed. So I played with them a bit more and she still seemed to be enjoying it. I then undid her shirt and removed it, seeing her white panties. I started feel her crotch and she still enjoyed it, so I removed her panties and started to play with her vagina. Running my finger along and then inserting it into her. My cock was now rock hard and she hadn't tried to stop me, so I spread her legs and mounted her. She started to talk to me, encouraging to fuck her harder. Then I just push in as hard as I could and blew my all cum inside her. After which I laid beside her for a while and then fucked her again. Also leaving my load inside her again, I fell asleep beside her. I woke up first and was showering when she entered the bathroom still naked. She asked me Did we have sex last night or did I dream it. Yes we had sex I answered, Did you cum in me she asked. Yes twice and you seemed to enjoy it is something wrong I replied. No it's just that I'm not on the pill and you might have got me pregnant She replied. As it turned out, I had got her and my little sister/daughter Amanda arrived late July. Mom is happy and we're still having sex, as far as anyone else is concerned the father has left town without saying where was going.