This is my first story for Literotica. All characters are 18 or older of course and any and all thought or actions of sexual nature occur after that age. Any and all comments are encouraged and welcome. I've heard it said truth will always be stranger than fiction because fiction has to make sense. I'm not going to say one way or the other but if you comment I'd also be curious as to whether you think this story actually could be true and why or why not.
The events of these last few weeks involving me, my sister and our parents have been flat out, mind blowing, fantastic for sis and I. This then is the story of how our present wonderful situation came to be.
It all started with our 18th birthday. Well really the day after. Until that fateful day we'd never thought of one another as any thing other than brother and sister. Sis and I are twins, she's older by about five minutes. We'd been taking extra courses for college credit the last year and a half of high school and had both graduated at the beginning of the summer.
It was already early September and college started for both of us in two days. Sis not too far from the folks small farm and me at the agricultural university across the state. Even though we'd never really been separated before, having grown up as playmates and close as twins so often are, we weren't too concerned as we'd still be able to visit the folks fairly often.
Only three more years of college and we could put our longer term plans for turning the farm into a real business into action. We thought being able to start our own business at 21 would be just fine.
We were a later in life sort of surprise for our folks and were 11 years younger than the youngest of our brothers who all now had families of their own some distance away. Mom had explained it when we were older. She was 42 at the time and thought she was finally over menopause. She and dad had celebrated with gay abandon.
A little too much celebration and way too much abandon apparently as she turned up pregnant within a month. At her age there was some concern that her eggs may have been past their best used by date.
In due course though we both showed up in fine condition. Growing up together on a small farm on the far outskirts of town was nice and we were happy to be there helping mom and dad. Sis had decided to major in business and culinary arts and I was going for an agriculture major.
The town had grown much closer to the farm in the last few years and local tourism picked up as well. We planned on taking over the farm on a more businesslike basis with a bed and breakfast and small bakery attached. We had the space for the new buildings and mom and dad were all for it.
There was even plenty of room for us to raise families of our own if we either ever found that special other. So far though not even close, just a few dates with various boys and girls in high school. In spite of all the stuff you hear about the wilder side of teenage life we like most were still virgins.
For us this might have been because we knew our parents had both both been virgins when they got married at 20 for mom and 24 for dad. Even though they were children of the 70's that was just the way it had worked out for them and I guess it still looked good to us.
It would be a while before we found out just how much of that 70's open attitude about sex they had been immersed in was still part of their seemingly conservative makeup but more about that later.
Our 18th birthday party was really special. Our older brothers and their families filled the house with people and kids for a grand cookout that ran well into the evening before they all headed home.
Mom and dad slept in the next morning while sis and I tended to morning chores. Usually this was feeding the livestock and gathering eggs after turning the chickens out of their coop.
We'd always had a variety of smaller animals about the place but in the last month dad had added a couple of plow horses he was planning to use on few adjoining acres he'd also just purchased. The pair of them, Bob and Sue were in their corral at the moment and we'd turn them out later.
As we headed back to the house with eggs for breakfast we both grabbed a big handful of long, fresh, green grass to give them as we passed by. It had become a thing for them to come over for grass and petting.
We set the eggs down and stepped up to stand on the bottom rails the better to hold out the grass.
Something was different this morning though. They both completely ignored us. Sue was just standing there a bit stiffly with her tail arched. Bob was dancing about a bit and sniffing at her tail.
"That's odd," said sis.
"Yeah," I agreed.
If we had had Bob's sense of smell we'd have known what was literally in the air. You'd think a couple of farm kids would have been quicker on the uptake. In our defense we'd seen plenty of chickens, goats, dogs and so on going at it but they were all much smaller animals. We'd never even had cows.
All of a sudden as Bob reared up on his hind legs his shaft which had been hanging loose suddenly stiffened into two feet of pure maleness about three inches across at the business end. Taking a half step forward he lowered his front legs over Sue's shoulders and just rammed the whole thing straight into Sue's waiting cleft!
We were simply transfixed! Pure, erotic poetry in motion on a huge scale. The big muscles in Bob's haunches contracted into stark relief at the end of every nearly foot long stroke as he pumped her. After half a dozen he held himself still as deep into her as he could go while those haunch muscles kept flexing strongly.
Then almost as quickly as it takes to tell it Sue stepped forward. Fluid streamed from her opening as Bob's now limp shaft slid out and the deed was done. Just like that. Wow!
What I had just seen was burned like a photograph in my mind's eye. As it turned out sis was affected the same way.
I turned to look at sis as she turned to look at me. Her eyes had to be as big around as mine were. It took a few seconds of just staring at one another for me to realize I had a massive erection building. I don't know what sis felt but it must have been similar because we both began blushing together.
We were distracted by the realization the grass was being pulled from our hands by a couple of friendly horses who also wanted petted. Thank goodness for friendly horses. It gave me time to be able to stand up straight without embarrassing myself. When they were satisfied we picked up the eggs and resumed our walk back to the house.
We were about halfway back when sis was first to break the silence. "Now that was purely awe inspiring little brother wasn't it?"
"And how sis, and how. They sure showed us how to do it didn't they," I agreed.
And then it hit me, I don't know for sure where it came from. I'd never really thought about anything faintly like it before but there it was plain as day. What I'd just seen in the corral was replaced with an image of the two of us in the same place doing the same thing!
Not the sort of fantasy I'd had before about similar things with a generic, possible, future unnamed girl.
No this was sis out there with me. I'd never seen her naked even a little bit. Just hadn't happened but that little fact didn't stop my imagination once it was tripped off.
Sis takes after mom, whom I'd also never seen naked nor thought to either, short, stout, very firmly well rounded with 40C boobs and size 8 undies. Hey, I helped do the wash too. Sis has long, fat blonde braids, blue eyes, freckles across her nose and the face and temperament of a very friendly bull dog. That voluptuous plump package was the picture my mind supplied bent over in front of me.
I must have stopped walking right after my question to her.
"Hey, earth to bro, yes they sure did show us," she replied and waved a hand in front of my bemused expression. "What's going on in there anyway? Wanna share?"
Oh yes I wanted to share but that thought had me blushing like crazy. Still we'd always shared everything. If for no other reason we had long ago found we really couldn't fib to one another anyway.
"Oooo, it must really be something. It just has to have something to do with what we just saw," she teased. "Come on, give. Tell me."
Okay, now I had to tell her. But how could I say what what I'd seen told me I wanted to do? I took a deep breath and just jumped into the deep end.
"All right sis, but remember, you asked," I began with as serious a look as I could manage. A brief pause and she nodded firmly.
"Well I've just had a beautiful, beautiful vision. So here's a question for you then. If that had been me instead of Bob and you instead of Sue could you have stood there like her and had me do what he did?"
A long pause as I looked into those blue eyes above her freckles and then she answered. "You know. we must be twins. I think I had sort of the same idea so I'd have to say yes. Most definitely yes. For my very first time I can't imagine any better way to do it and no one else I'd rather do it with. Yep, glad you asked. That's my final answer."
For some reason I found I had to push for absolute clarity.
"So not just imagine but you'd actually do it that way with me, your brother, for real?," I persisted.
A briefer pause. "Yeah. This isn't just imagination. What we just saw has cleared up something for me. If I don't find 'the guy' pretty soon that's exactly how I want my first try at making babies to happen. Just exactly like that, with you bro, with little old you," she said with a twinkle in her eyes and a smile from ear to ear.
I had to gulp a time or two before I could continue.
"Any time you say sis. I promise. Any time."
"Cool. Now all we have to do is pick a time."
"We do?," I asked brilliantly.
