I was fourteen when Sherry was ten. Sherry is my stepsister. Sherry was very developed for her age; I mean she had 33D breasts. My parents allowed us to sleep out in the back yard in the tent we had pitched to air out after coming back from Williamsburg while on family vacation. There were three of us kids in the tent, my two stepsisters and myself. We were discussing the vacation and the good time we had. We were getting to know each other as this was the first summer I had spent with my father and step mother as my mother had been suddenly killed in a car accident. I felt out of place and my two step sisters were doing their very best to make me feel at home. As the night wore on our conversation naturally turned to sex. Bev, my other stepsister was trying to convince me to have sex with Sherry.

"Eddie, you will never find a girl as young as Sherry with a better body," Bev said.

"I don't know about this Bev, I am scared," I said.

"It's now or never for you, Eddie," says Sherry.

"Don't blow your chance," says Bev.

"Ok, I will," I said.

We move closer together. Since it is hot outside (and heating up in the tent as well) we are on top of our sleeping bags. Sherry and I get undressed and start to play with each other. I lean over and kiss her on the lips and she kisses me back as only a little girl can. Pretty soon we are making out hard core. By this time Bev is giving us instruction on what to do. Bev instructed Sherry to lay on top of me with her pussy on my mouth and to gently take my cock into her mouth. With both of us in the right position I started to lick Sherry's pussy while she sucked my cock. Sherry started moaning around my cock, I was licking her from her slit to her clit. All of a sudden Sherry let loose a warm liquid which flooded my mouth, soon thereafter I let loose with a large helping of sperm into Sherry's mouth. We both heard other moaning from the tent and it was Bev who was moaning, she was masturbating to the sight of Sherry and I having oral sex with one another. I move over to Bev's pussy and start to eat her out as well. It is not long before she too floods my mouth and her sleeping bag with her orgasm. Thank goodness we had an extra bag in the tent. We all three lay there in post orgasmic bliss.

"Eddie, you are going to make some woman a happy one later in life," Bev says.

"Thank you, Bev," I reply.

After we all recover Bev tells Sherry to climb on top of me. Sherry does as told, and then she tells me to hold my cock at the entrance of Sherry's hairless pussy. Sherry's pussy is dripping wet with her juices and Bev tells her to lower herself onto my awaiting cock. As Sherry lowers herself on my cock I feel the head going into her hot, wet love tunnel. I almost cum before I take her virginity. Bev tells Sherry to drop herself down onto my cock hard, as Sherry does this she lets out a scream of pain as I rip her hymen to shreds. Sherry lays her head on my chest and I stroke her hair and kiss her and tell her everything will be fine. It is not long before the pain has stopped and Bev tells Sherry to raise and lower herself on my cock. I cannot believe I had just taken my step sisters virginity and she had taken mine as well. We are fucking in earnest now and Sherry lets out a shriek and floods my cock with her juices, this sends me over the edge as I shoot a large load of hot fertile sperm into Sherry's unprotected pussy and womb. We both lay there in post orgasmic bliss for the second time that night. Sherry and I are kissing telling each other how much we loved each other.

"That was awesome, can we do it again? Sherry asks.

"Yes we can, if you want," I reply.

I never get soft inside of Sherry; she starts to ride my cock again, this time I last more than fifteen minutes. Sherry and I make love for an hour and her pussy is milking my cock of its sperm. I can't hold out any longer, this time we cum together. I find it hard to believe but I shoot an even larger load inside of Sherry.

It is not long but we hear our parents outside. They came to check on us to see if everything was ok with us kids. We play like we are sleeping. I over hear my parents talking in a low tone.

"Look at Eddie and Sherry holding hands," my father says.

"Wouldn't it be great if the scream we heard was of one of the girls losing their virginity," my step mother says. "Sherry is in her fertile time," my step mother states to my father.

"Let's go into the house and give the kids their privacy," my father says.

Sherry and I look at one another and smile. As soon as we hear the screen door close we know it is safe. Sherry and I start to have sex again. We fuck for thirty minutes as I fill her with another dose of hot fertile sperm. We remain coupled and as soon as I am finished filling Sherry with my sperm, she starts riding my cock again, this time I shoot a much smaller load into her. By this time even youth gets tired and we call it a night. Bev is all smiles when Sherry asks her what does fertile time mean.

Bev explains to Sherry that it is the time in which a girl or woman can get pregnant if she has sex. Sherry turns to me and smiles. I look at both girls and I think to myself that I had just been had by my step sisters. We all go to sleep as it is 2 am. I get up at 230 to go piss on the trees in the yard. I get back to sleep and an hour later I wake up to what I think is a wet dream, only to see Bev on top of me riding my cock towards sexual bliss. It does not take long before I unload a healthy dose of hot fertile sperm into Bev's pussy and unprotected womb. I lay back down to try and sleep but Bev wants more of me and she refuses to uncouple. She starts riding my cock again until I put another dose hot fertile sperm into her pussy and womb.

Five week later Bev and Sherry both miss their periods. My step mother who happens to be a nurse suggested taking them to the doctor. One week after the visit to the doctor he calls and says that both girls are pregnant.

My parents put both girls into my bedroom and we are given a king size bed. All three of us sleep in the same bed and we make love almost nightly. After seven months of having sex together the girls can't handle it any more as their bellies are too big.

After the babies are born Bev, Sherry and I never have sex again. My parents raise the two boys.