This is entirely fiction, and purely for entertainment value..if incest is not your cup of tea, hit the back button NOW! :)
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I was 18 when I left home. My mother had remarried when I was 15. John and I didn't get along too well- I was still hoping my folks would get back together, which I think every kid does, when their folks split up. They had a little girl together, and from letters from my mother, two more girls soon followed.
I am now 36, and coming home for the summer for the first time since having left home. I was also bringing my six year old son with me, to meet the family. My wife passed away shortly after his birth, from complications caused by her diabetes and the pregnancy. It had taken its toll on her little body.
Jacob was excited to finally meet his grandmother, and aunts. I guess they were all pretty excited too, even John. He and I had talked a few times since my wife's death, where I had apologized for being an ass all those years ago. Putting my behavior back then behind us, John had proven himself the better man at that point.
As our plane landed and we disembarked, Jacob was scanning the crowd for faces he'd not yet seen. Mom still never learned to drive, and John was at the office. Jennifer had been elected to fetch us from the airport. The only memory I had of her, was of a 3 year old baby. The little bombshell that greeted us with big smiles was far from a baby!
She was tall, just shy of 6 ft, like her father. Her long black hair had chestnut highlights, and fell just above a nicely shaped ass. Her green eyes sparkled with mischief as she bent down to introduce herself to Jacob. This gave me a birds-eye view down the top of her tank top. Nice, ripe breasts, fully developed and creamy white cleavage greeted my eyes.
My eyes traveled up to her face, and I realized I'd been busted looking at her tits. She gave me a wink, and stood tall again. "Hi, Jack. How have you been?"
I recovered from my embarrassment long enough to respond, and asked her how she had been as well. We chatted amiably on the way to the house. It was not the same house I'd grown up in. Their family was too large for the two bedroom house Mom and I had shared comfortably.
She filled me in on her life, and how she was to start college after the holidays.
"Really- where have you chosen to go?" I asked, impressed that she seemed so dedicated to furthering her education. Myself, I had learned the construction business from the ground up, and had opened my own company shortly before Jacob was born.
"Well, I have my heart set on two places. I'm still waiting for acceptance letters. I either want to go to Columbia, or University of Michigan."
This news threw me, for Jacob and I had made our home in Ann Arbor, Michigan. "You know that's where we're from, don't you?"
She smiled. "Yeah, I've heard its awesome there, and one of the best colleges for architecture. That is what I want to do with my life. I just love looking at all the old buildings, the design, the details. It's all so fascinating!"
As a contractor, I built buildings from the designs created by architects, and understood the passion for detail. "I agree. I guess we get it from Mom, huh?"
Up until this point, I had forgotten she was my sister. Well, half-sister to be precise. "We must!" She agreed, and led us to where the truck was parked.
She offered to let me drive, and being a man, I accepted. She had gotten a booster seat for Jacob, and it was strapped into the passenger seat. Jennifer got in ahead of me, and sat between us. It was a tight fit, forcing her to sit sort of scrunched up. This made her generous breasts push against one another, up and out of her low cut top. I could hardly keep my eyes off her chest! They had to be D cups at least, and my cock itched to get between them. In fact, it was 'up' for the job right now!
The ride was not a short one, and soon, Jacob fell asleep with the gentle motion of the truck on the road. He'd always been one to fall asleep easily in a car. I noticed my sister wiggling about uncomfortably, and raised my right arm, draping it on the back of the bench seat.
"That better?" I asked, hoping it made a little more room for her.
"Much better, thanks!" The position also enabled her to snuggle into my side. She looked up at me, and confessed she was feeling a bit sleepy as well, did I mind if she rested her head on my chest?
"Not at all- what are brothers for?" I chuckled. She laid her head on my chest, and I could smell her shampoo. It was slightly fruity, and must have been great quality, for her hair was shiny and healthy, and slightly intoxicating.
After about ten minutes of the truck jostling her against me, feeling her soft breasts rubbing against my ribs, my poor cock was straining at the bit to get at her. It was beginning to become painful, so I reached down to my crotch and adjusted my hard on to a more comfortable position.
My movement disturbed her slightly, and she reached her right arm forward against my chest to steady herself in her sleep. The hand did not remain on my chest for long, as it slipped lower and lower, until eventually, it was resting smack dab on top of my throbbing boner!
I felt him twitch under her warm palm, but her hand did not move. My cock did though. My adjustment had him pointing straight up to the top of my loose trousers, and as he grew even harder, the head was protruding from the waistband of my pants. I groaned softly, and my hips moved of their own accord, pressing against her hand.
Instinct must have kicked in, for I felt her hand exert light pressure on my hardness. I panicked, thinking, this is your sister buddy! What the hell are you doing? I called myself all kinds of sick bastard, but did nothing to stop her from fondling my cock. It felt too damned good.
