This story was inspired by the story 'Turning Boys Into Men' written by the very talented Brittni4U. I wrote it for her as a gift, a way to say thank you for all the times her stories took me to the brink and left me gasping and satisfied. If you like it, then you have her to thank as I wouldn't have published it without her encouragement. It really was meant to be just for her.
If you haven't already or if it's been a while, I do recommend you read her story first: https://www.literotica.com/s/turning-boys-into-men as it will provide deeper context and is sure to get your juices flowing.
Quick heads up, along with what I hope is some good steamy sex between siblings there is some brief foot-play - hopefully it won't distract you too much if that's not your thing.
For the record, all the characters in this story are over the age of 18 and so am I. Brittni4U has given express permission for me to publish this derivative work.
*****
Finally on the road, finals over, car packed and headed back to home for the holidays. I just finished my first semester at Stanford studying software engineering. I haven't been back home since the semester started and I've really been looking forward to seeing my sister again. Our parents are on a cruise in the Bahamas and won't be home until Christmas Eve. I would have been home for Thanksgiving but there was a group project I was leading and we needed the 4 day weekend to finish it. Its late afternoon and I find myself once again reminiscing about the night my sister Brittni came down to the basement where she proceeded to make men of me and my buddies.
On Britts advice I took a weightlifting class as an elective this semester and was glad I did. Not only did it give me a break from an otherwise grueling course load, I liked the way it made me feel (once the initial soreness was over that is). I also like the changes I see in my body. I had always been that thin geeky guy that the girls ignored. But as my muscles grew so did my confidence. They say that men typically stop growing in their late teens, and it may be a coincidence, but it's almost like the weight training stimulated production of growth hormone because I'm now a little over an inch taller and my shoulders are broader. And though I haven't actually measured I swear my dick seems bigger too. Ehh, probably just my imagination.
Brittni and I have been keeping in touch through texts and emails though those have been sparse as her classes have been just as demanding. Keeping my eyes on the road my mind is awash with images of the beautiful vision that is my sister. I feel my attention divide as I recall the way her eyes glowed as my cock slid effortlessly down her willing throat, a tiny tear forming in the corners of her hazel eyes as she used her hands on my ass cheeks to pull me in deeper. I remember the indescribable cacophony of sensations that flooded me all at once as I knew I was about to come down her throat, and there was nothing in the world that could have stopped it once it started. It was a mixture of guilt, euphoria, and arousal that I never imagined could coexist.
Just before my orgasm hit I had the urge to pull out, to spare her from this thing that no sister should have to endure. Sensing my hesitation she held me tighter, her eyes wide, encouraging, her throat willing. She was telling me it was ok, that she wanted this and wanted me to have it. Seeing her steadfast commitment to finishing what she started I spread my fingers on either side of her head, pushing them through her silky soft blond hair and held her tightly as I came.
With a spike of adrenaline like I had never known, the entire experience passed through my mind in slow motion. Like a skydiver in free-fall, the whole thing was probably over in less than a minute but I still recall the details as though they occurred over hours.
I owe her so much I don't think I could ever repay her. Growing up she was 4 years older than me and for that she was always tasked with watching over me. For our parents she was like a build in babysitter. Looking back I can see that most times she took it in stride but it couldn't have been easy having her little brother tagging along. She was always kind though and I loved her for it. As we got older I began to protest that I didn't need a baby sitter which was generally ignored by my parents until I was around 12 or 13 when they finally decided to free Brittni from her babysitting bonds.
I didn't realize it at the time but that was the beginning of the time when we started to drift apart. She was always out with her friends, involved in her sports, or out with one of the countless guys who jockeyed for her attention. On the other hand I could generally be found in my room or down in the basement lost in some science project or working on my computer. I built my first computer at the age of 14. I had been bugging my dad to get me a PlayStation or X-box so that I could game with my friends but he always refused. He was afraid that video games would rot my brain or something. Finally after years of pleading he relented just enough to give me my chance. He said that if I wanted to play video games I would have to start by building my own computer, from scratch, and then learn to program it by writing my own games.
After building my computer and learning to program it, my friends started asking me to build computers for them. Later I started putting up how-to videos on my blog teaching computer building and programming. So when Brittni came downstairs those few months ago I was in the middle of editing another how-to video when I looked up and saw her standing there in her underwear. It wasn't the first time I had seen her in a similar state of undress so I figured she was just there to annoy us. I'm so glad that I was wrong.
She taught us so much that night, it was a truly amazing experience. We didn't just have sex with her, she taught us ABOUT sex, and about girls, and how to please them, and what to expect, and so much more. She taught us to use our sense of smell, taste, and touch. She knew that guys are visual creatures by nature but that girls had so much more to share, so she taught us how to appreciate them.
After she had sucked and fucked each of us more than once our young testosterone fueled bodies were spent but my mind continued to race. I wanted to know more, to do more, to see and smell and taste more. As my mind raced with the possibilities of what to ask her I blurted out -
"Have you ever done it in the butt?"
While everyone anxiously awaited her answer, she responded, "Oh yes, but that is another story." She turned, her long blond ponytail whipping around, and sashayed up the stairs leaving us with mouths agape.
Which brings us to the reason for my uncontrollable excitement in the anticipation of what I hope to be a continuation of my sexual education at the foot of my gorgeous sister. You see in the days that followed that incredible night she informed me that she was cutting me off. No more sex with sister but instead she set about teaching me how to talk to girls, how to tell if they were interested in me, how to gain their interest if they didn't show it initially. How to treat them, appreciate them, understand them, and most importantly to me, how to bed them. She explained that if she were going to even consider teaching me about 'butt' sex I would need to get out there and apply what I had learned.