Having a twin sister does have its benefits. We were so close growing up that we could talk about any thing with each other. When we reached puberty that did not change at all. As Shelly was going through the changes that all girls do, my male body was also going through its own changes. Sure we had our fights and all that brothers and sisters have but we also got over them and went back to our old ways. When we were kids our parent's house backed up onto a wooded park with a creek that ran through it. At least once a week Shelly and I would go for a walk along the creek bed looking for any kind of treasure we could find.
It was on one of those walks when we turned 18 that our relationship began to radically change. As we were going along she got to talking about some of the different boys at school and how she thought some were cute and others were not. I added my own thought about some of the girls I knew and some of Shelly's girl friends. After a while she got real quite and then said she thought I was cuter than any of the other boys at school.
This kind of shocked me but I quickly told her I thought she was a 100 times prettier than her friends and the girls I knew. With that said she just leaned forward and kissed me on the lips and said thanks. As we kept on walking Shelly reached out and grabbed my hand and held it. Upon reaching our favorite spot we sat down next to each other still holding hands and just talked for a while. After a few minutes Shelly snuggled closer to me and put her arms around me and playfully said she enjoyed being with her boyfriend. I slipped my arm around her and hugged her close and told her that she was the best girl friend any guy could have. And then we kissed again. But this time it was not just a quick kiss of friends but also a kiss of passion.
As we sat there kissing for the first time our feelings for each other changed in ways we never expected. Our passion began to build to the point were Shelly lowered her hand to the hardness in my pants. As she gently rubbed the area I also moved my hands up to the area were her legs met. All the while kissing and feeling each other and rubbing when she suddenly unzipped my pants and pulled my hardness out and began jerking me off with her small soft hands. In the mean time I had undone her pants and began rubbing and fingering her young teenage pussy. Before we knew it we both came from our playing with each other.
After we settled down we kissed one last time and headed home. That night I had a hard time getting to sleep, I kept thinking about what we hand done. The next day when I first saw Shelly at the breakfast table she just gave me a quick glance and told me, "Good morning sleepy head". Since it was the weekend our parents were home and we went out for the day. Later that night just before bed Shelly knocked on my door as asked if she could come in. Once she was inside she sat down next to me on the floor and said she was not sorry about what happened between us but had not planned on it happening. I agreed were her but I also told her that I did not want what happened to affect our relationship. She leaned over and whispered in my ear that it had not but had made it even better.
Over the course of the next year we continued to go for our weekly walks in the park. And each time we would wind up kissing and bringing each other off with our hands. Our weekly sessions were the highlight of our week until we entered the local Junior College. Then things began to change a little more. Half way into our first six weeks we were on our weekly walk in the park when Shelly asked me if had ever heard of the term "blowjob".
I almost fell all over myself at that and said yes, I have. I asked her why and she said some of her friends were talking about it at school and they said it was great because you could not get pregnant that way. Once at our spot we sat there hugging each other when Shelly began feeling my hardness again through my pants. I leaned over and kissed her and lowered my hand to her hot spot. As she lowered my zipper and pulled my dick out of my pants she just lowered her head upon my dick and engulfed the head of it. At first she just sucked but slowly she began to use her tongue on it. Before long I was putting my hands on her head guiding it up and down on it. After several minutes I felt my climax building and started jerking her head faster on my hard dick and then I came in her mouth.
At first she was startled by it but just swallowed it down. After a few minutes she raised up and said that it was not bad. I eased her back on her back and slid her pants off and told here far is far. I moved my mouth to her legs and licked upward toward her honey pot of gold. As I reached her virgin pussy I licked up and down getting a moan from her lips. Slowly I began easing my tongue into her. As I did she moaned even loader. I kept sliding my tongue deeper into her until she was bucking into my mouth. I grabbed her hips to hold her steady but she just kept getting more and more worked up.
When she came it was just like some one had touched her wire a live electric wire. She bucked and trashed crying out my name and pulling my head closer to her pussy. After she had calmed down she told me that was the most wonderful feeling she had ever had. We kissed one final time and headed back home. Over the next year our weekly session's included not just out mutual masturbation but also oral sex on each other. On occasion we did have dates but not anyone seriously. We were spoken for each other.
In our second year of college things advanced again even further, one weekend our parents went out of town on a trip and left us home by ourselves. Shelly and I could not believe our luck. Here we were with the house all to ourselves. Mon and dad left on Friday morning and would not be back until Sunday night. After school Shelly and I got home and ordered Pizza. I went and showered and returned to the living room and found that Shelly had left the room.