Courtesy of [StoryVa (Best Free Sex Stories)](https://storyva.com/) as the main source of the story.
The early years of my adolescence had been painfully and regrettably uneventful. My natural curiosity, combined with raging hormones, had led me to learn everything I could about female anatomy and human sexuality. By the time I was 15, I considered myself a mini expert on the subject. Unfortunately, this expertise had come only from what I could read in books and see in magazines. To this point, the only experience my cock had seen was from my right hand. I wanted more, but really didn’t know how to get it.
It was about this time, I suppose, that I started to take a different kind of notice of my older sister. Monica is three years older than me, making her 18 at this time. The difference in our ages was not so big that we totally ignored each other, but we had never been what you would call, “close,” either. We acknowledged each other, but pretty much existed in separate worlds. Now, however, I had more reason to become more interested (those damn hormones!).
Let me describe Monica at 18 to you. With a father well over 6 feet tall and a mother 5’11”, it was inevitable they would have tall children. This genetic fact wasn’t lost on Monica. By her 18th year, she was 5′ 10″ and well into the latter stages of adult physical development. She wore her medium brown hair long, the full tresses flowing down to the middle of her back. She got her stature from both our parents, but the body she got from Mom. There was hardly an ounce of fat on her frame, but she wasn’t “skinny.” Having seen her bras in the laundry, I knew she was a 36B. Her breasts were full and round, with nipples that reacted openly to drops in temperature. Her height provided a pair of long legs that were usually nicely exposed by the mini-skirts of the early 70’s, and these were topped off by an ass that was definitely to die for. All in all, Monica was quite a looker. I wondered why I hadn’t noticed before.
As for me, I guess you could say I was pretty average. I also got my share of the family height. At 15, I was already 6′ tall, with 2 more inches to come before I stopped. I’m not going to embellish this by telling you that I was some kind of god in development. The description of my lack of experience should prove that to you, any way. I did cut a rather athletic figure, though. I was always training for one sport or another and kept myself in good shape.
Well, this all started in earnest in the Spring of the year. After a typically shitty northeastern winter, the air was fresh and the temperature was on the rise. I guess that’s what led to my new appreciation of Monica’s physical attributes. The long pants and full skirts of winter were now replaced by shorts and shorter skirts. The baggy sweaters were in storage for another year, now replaced by tee shirts, tank tops, and light blouses. I was convinced. This girl was a babe! At the moment of this discovery, I was not particularly happy. Remember, I was so horny the crack of dawn wasn’t safe and now I had this walking fantasy living in the same house. There had never been even a hint of sexual interest or play between us and I don’t think I was even considering this as a possibility. All I knew was, Monica was gorgeous and I saw her every day.
>Continue reading in its source website: [My Big Sis (Incest Story)](https://storyva.com/story/my-big-sis-part-1/)
Source: reddit.com/r/eroticliterature/comments/o3k6pi/erotica_story_my_big_sister_part_1