Fighting Parents

My parents were fighting almost all the time, my mother Cheryl 39 wanted another child before it was too late. My father Raymond 44 wasn't interested in having another child at his age. I heard Cheryl tell she was going take precautions again until he had gotten her pregnant. He wasn't happy and said I wear a condom then and she said in me you won't. That was a few days before the golf club annual dinner, dance and awards night. I'm Terrance 21 and was at that moment only child of Cheryl and Raymond. Both drank heavily on the awards night neither up for any award, both arrived home very drunk. Just as soon as they came in the house the fighting started again and more was drunk by both of them. Cheryl passed out on the lounge and Raymond crashed on their bed half undressed. I tried get him into his PJ's but it was too hard, so I left him in his shorts on the bed. I went to get Cheryl to the bed also, she was out for the count as they say. I got her to the bedroom easier than Raymond would've been, I was just going to let her sleep it off. But decided to cop a feel as they say, I liked what I felt and decided to change her into PJ's, mainly to get a good look at woman's body. She was easier to undress and I soon had her naked, I got a hard-on and thought why not. So I mounted Cheryl and started fucking her, she didn't react at all. I intended to pull out before I came. But got carried away and before I could I left my sperm inside her. I was dead if she or dad found out, I had to do something. I got Raymond's shorts off and was going leave him laying naked besides Cheryl. But then thought I should make it like he had fucked her, there was a little seeping out of Cheryl and I rubbed it on Raymond's cock to make it sticky. But thought it wasn't enough and decided to cum again and spread it over Raymond's cock. I was going to masturbate, but decided to fuck Cheryl again and again I left it in her. I waited a while and I got another hard-on and this time I used a condom I carried in my wallet I had gotten from garage's toilet vending machine. After I had finished I emptied the cum over Raymond cock. I went and showered and then to bed, I was up before my parents and it was several hours before either awoke. I thought they wouldn't argue now the deed was done. But I was wrong, Raymond blamed Cheryl for taking advantage of him while was drunk. She said he took advantage of her, I told I heard them talking and laughing in their room. Neither could remember much after getting home, but they did stop arguing. I didn't think Cheryl would pregnant, but she did. I still wasn't sure if I had done the deed or they sex again later on. But I'm getting a sister in a couple of months. I've also lost my virginity by fucking my mother, who is very happy having a girl.