This was going to be a boring weekend. My parents were gone for the weekend and my sister was out partying. I was sitting on the couch watching TV on a Friday night. I must have fell asleep because I heard the front door open and I woke up. My twenty-one year old sister, Jen, had gotten home.
"Hey little brother!" She said to me. Jen then headed back to her bedroom. I heard a loud thud moments later. I figured I better go back and check on my sister. Sure enough she was lying face down on her bed passed out. I thought I better turn her over onto her back in case she got sick.
As I flipped her over I looked hard at Jen. She wasn't the most attractive girl around. She was a little heavy from all that drinking. She had a little belly on her. She did have big tits and she sure liked to show them off. Most of my friends commented on her tits all the time. I started to pull off her clothes so I could put her into bed properly.
I had a hard time getting her shirt and bra off as well as her pants and underwear. I finally got her naked. I was going to throw the covers over her, but I stopped. I took a good look as my sis. There she was naked and I was so horny that night. I hadn't been out on a date in weeks. I had a wild idea and I started to shed my clothes as well.
My dick was already half hard. I started to stroke my seven inches as I observed my sister. She hadn't made a move. She was barely breathing from the looks of things. I climbed up onto the bed. I pulled Jen's legs apart and got in between them. I figured I might as well have some fun with her. I began to rub my cock head all over her wet pussy. After a few minutes of that I slid the fat part of my cock across her folds.
I must have gotten carried away because my dick momentarily slid into my sister's pussy. She still hadn't made a move yet. I held my dick in place until I thought this through. I eventually figured she wouldn't know a thing. I started to feed her my dick. I know I was fucking a woman who was passed out, but I didn't care by now. I was a horny eighteen year guy stuck in the house for the weekend.
I drove my cock in as deep as I could, but Jen barely made a move. I did see her eyes barely open up. "Is that you Bobby?" She asked me.
"Shhhh," I said quietly. She seemed to pass back out and I kept up my fucking. I must have gone fifteen minutes or so when I felt I was getting close to cumming. I knew I should pull out, but my sister deserved this. She was good at treating me badly and I was always bailing her out. Especially when she came home drunk from a party.
I slid my dick in all the way and then I exploded inside my sister's pussy. My big sacs hit her ass as I blew my sticky load deep into your pussy. I knew it was wrong, but I just didn't care any longer.
I must have had a big load in me because I seemed to squirt a long time. When I finally pulled out I watched as my cum dripped out from my sister's hole. I got off the bed and pulled the covers over her.
The next morning I was up eating a bowl of cereal. Jen came out of her bedroom with her bathrobe on. She had a confused look on her face. "Good morning sis," I told her. "How did I get into bed last night?" She asked me.
"I helped you take your clothes off and helped you into bed," I told her. Jen came over to me and gave me a hug.
"You are so good to me Bobby," She said.
I just looked at her and said, "You should be more careful Jen, letting a guy cum in you like that." Jen's face got all red and she stormed back into her bedroom.
I figured I better blame last night's sex on someone else for now. Jen certainly didn't know any better. A little while later I was watching the tube again. Jen came out and sat next to me. I think she bought my explanation of what happened to her. She put her arm around my neck and planted a kiss on my cheek. "Thanks for last night again, I was so messed up I didn't remember a thing."
I turned my face to her and kissed her directly on the lips. She seemed a bit shocked and pulled away from me. "We shouldn't, Bobby."
"Why not?" I asked her. "You let some guy cum in you and you can't remember who it was." I could see she was getting mad at me, but I didn't care. I put my hand between her legs. Jen's eyes grew big. I rubbed my fingers against her crotch. I could tell Jen was horny still. She always seemed to need it according to what guys told me.
This was my turn now, I figured. I brought my other hand to the bathrobe and I pulled it to one side. I could see one of her big tits and I latched onto it. "We really shouldn't do this," Jen said, but it was a weak response.
I could tell she was melting now. I had her in my power. I pushed a finger up into her pussy. Jen must have washed up because I didn't feel my cum inside her any longer.
Jen was letting me do whatever I wanted by this time. I then stood up and undid my pants and pulled my shorts down as well. My cock was hanging down directly in front of Jen's face. I looked down at her and she knew exactly what I wanted.