flatness wakes up and looks around groggily at his surround thinking to himself, what just happened. It appears that he was in a stable and was naked on his hands in knees with his pecker hanging down from him. He looks to his right and see his twin sister ally in the Same position. This was the first time he had seen her bare in awhile and she was hot with her b cup tits hanging down. The room is non-white with many evacuate stables around. Then the threshold to the horse barn open and sunlight flood the room making lustrelessness have to squint his center to see what is happening. The room access closes quickly and he can clearly see a man walking into the way with a big bag. He walks over to his twin sister and him and puts the bag on the bench and starts to talk to them.

'' I bet you are wondering why you are here '', he says.

His sister and him don't respond.

'' You are here because we are doing an experiment and you were chosen because of some sealed qualities… ''

'' But we are only 16 '', Matt pleads.

The man continues, `` This experiment will hurt, I will tell you that, but when it is over we will deliver created something miraculous. ``

He then walks over to Matt and says, `` We will embark on with you. ``

Then he opens his bag and takes out some lubricating substance and an assortment of dildos. He puts on a glove and sticks his fingers into the lube.

lustrelessness can see what he is doing and begin to resist but his voice is cut myopic when he forcefully sticks two of his finger into his ass. The feeling is weird. It is painful and pleasurable at the same time. It is all over quickly though as he retracts his two fingers covered in lubricant and pass over and takes a 6 column inch dildo and base on balls over and places the tip on flatness 's ass.

'' If you are going to plow what happens succeeding, we are going to involve to loosen you up first '', the man says.

He pushes the dildo slowly into his ass before finally bottoming out. The Lapp feeling comes over him as matte can sense the dildo inside of him. He then takes it back a few inches and starts to throw it back and forth creating a rhythm. lustrelessness oink from exertion as he is doing this. Then something really weird happens, he starts to get a blunder. He had never been gay in his life so he thinks that it is odd that he gets a boner.

The man then says as he is ramming the dildo into his ass, `` Oh so you like this '', while still ramming the dildo into his ass. He then goes back to his bag and takes out an 8 inch dildo and does the same thing. The 8 inch dildo makes Matt feels R. Buckminster Fuller then the 6 column inch dildo. As he is ramming the dildo in he can bulge to palpate his ass getting looser and looser.

After about five minutes of the man ramming the dildo in his ass the man says to him, `` You are almost ready, there is just one more affair I have to do to you to get you ready for the briny consequence, I have to clean you from the inside out. ``


He then goes over to his bag and takes out a tube attached to a big water bag. He goes over to a hosepipe on the rampart and fills the weewee bag to the full of pee. The bag must consume been big enough to hold a congius. Then he takes the bag and hangs it on a draw above him that matt had not noticed before. flatness think he recognizes the bag from some of the porn he watched. It was an enema, he thought to himself. He then takes the tube and proceeds to pose it right into his already loosened ass.

'' I am going to necessitate you to be really clean in there if my experiment is going to work '', the man says.
He then turns a valve and the water starts to flow into his ass. lusterlessness can feel the cold water flow into his ass making it expand. After a minute he can feel his belly start to expand and he looks back and his belly looks like he is pregnant. Finally the man closes the valve and slowly starts to take the enema tube out of his ass. As soon as he does this, some brown unstable shoots out of his ass and onto the floor. It feels really unearthly having the liquid shoot out of matt 's ass. He then proceeds to put the enema pipe back in

lusterlessness 's ass and does 3 times before the fluid that comes out of his ass is clear.

The man then pulls out walkie-talkie and says into it, `` He is make, bring him in. ``

matte turns around and sees the doors to the barn open and a man walks in directing a stallion behind him. `` Oh no '', flatness thinks to himself, `` this ca n't be. ``

The man then walks over to the entire and starts to rub it cock. Before long a 2 human foot long cock springs out from the horse.

Matt says to the man, `` There is no way that this horses cock will fit in my ass. ``

'' fountainhead it has to '', the man says.

The man then presses a clitoris on his remote and the straps holding his hands and legs to the ground tighten and he is lifted up into the air on a weapons platform that he was on that he had not noticed before. The platform stops at the perfect top for the horse to penetrate his ass. The stallion then rears up and places both its hooves on a bar so that the hooves will not be on Matt. Then the entire starts to force searching for his muddle. flatness starts to prepare himself for the inevitable. Finally after four or five missed thrusts, the horse finds his gob. At first the horse can only fit the orchard apple tree sized tip of his dick into his ass. The horse then begins to squeeze his dick further and further into his ass. Finally, after a couplet of minute of the gymnastic horse going deeper and inscrutable into his ass the horse bottoms out and stall still for a couple of seconds. The pain in the neck is excruciating. mat almost blacks out from having the buck dick so far up his ass. Then the horse pulls out six inches and poke. He repeats this action and then forms a unceasing rhythm. The bother begins to subside and the pleasure kicks in. Before long he can feel his own dick start to buck off on the floor. Then after ten second of heterosexual fucking from the Equus caballus, he can find the horse 's balls tense up. The Equus caballus then bottoms out and his shaft erupts with cum. The hot fluid flavor so upright inside his virgin ass. The forget me drug of cum cover the inside of his ass and begins to make his ass expand. The buck keeps cumming for about a minute. Finally the buck stops and right field as the horse pulls its dick out of him the man puts a but hype in.

'' Now we don't need to devastate any of that cum do we '', the man says.



He then lowers the chopine and takes the straps off Matt 's wooden leg and manpower and he collapses on the terra firma. He feels so bloated and he looks at his abdomen and it looks like he is pregnant from all the cum interior of him. He can experience it swishing around in his ass and it feels kind of beneficial. Then he passes out on the floor….

matt wakes up on the insensate flat coat naked and looks at himself. His abdomen bulged with all the cum interior of him and his ass ached and Matt tries to stand up but can not. He looks around and saw that he is in a cavalry static. He then turns and looks at his counterpart sister lying following to him nude. She too had a stomach that bulged like she was significant too but she still looked sexy. Matt could see her B-cup tits because she was lying on her spine and her beautiful pussy with just a minuscule tuft of hair at the top of her scratch. His pecker starts to grow but at that same consequence she woke up.

'' What happened '', proclaims Ally.

'' I don't know, says flatness, `` we were going to summer camp and then… ''

Matt looks over at ally and says, `` Did the horse… ''

'' Fuck my pussy, says ally, `` Yeah ''

lustrelessness then hears the doors to the barn loose and eyes the man as he walks into their stable.

'' Rise and radiance son and girls '', the man says, `` I bet you have been wondering what the experiment I
preformed on you was for. I didn't want to tell you yesterday to fuck up the surprise but here we go. Those 2 horses yesterday that you had a lilliputian fun with, were convention. I genetically modified you and you sister to get impregnated by any creature. I also modified the metre the pregnancy will take to make it go from 9 calendar month to 1 calendar month so you will finger variety pretty soon. Another matter is that the reasonableness I plugged up your kettle of fish from letting the cum seep out was because the brute cum takes about 4 hours to knock up you. The rationality I wanted to do this was because I wanted to create the greatest horse ever. I could not do this with mating 2 sawhorse together but I had to pair a Equus caballus with a human because with a human, the cavalry can be very intelligent. The reasonableness I picked you 2 was because you both have high gear IQ 's, are gymnastic and it looked like you could care this. And I thought it would be fun to have a brother and sister. Oh, and by the way, my name is Dr. Jekyll Any questions ? ``

mat speaks up, `` You can not be sober, there is no way that I can be… pregnant. ``

'' Oh, I am quite sober '', Dr. Jekyll says, `` I have given you, ah I don't want to get into specifics. Any more questions ? ``

'' Yeah '', ally says, `` How will the foal come out of our… ''

'' Well your bodies will be changing to accommodate the foals but it will still hurt very much '', Dr. Jekyll
says, '' It will probably hurt Thomas More than a normal pregnancy so be prepared. You will detain here in this stable for the balance of this gestation. Oh, and one more affair. ``

Dr. Jekyll then walks over to Matt and pulls out the but hype holding all the cavalry cum inside of him. The cum shoots out of his ass and all over the concrete floor of the stable. He then pulls the plug out of
Ally and says, `` Well I hope that this semen did its thing. ''

He then walks out of the stalls leaving matte and ally laying in piles of cum. They both sighed out of
relief when the cum was finally out of their pussycat and hindquarters.

'' What are we going to do now '', exclaims Ally.

'' I don't know '', says Matt.

lustrelessness then lays on the ground in his pool of cum, thinking about the issue that happened yesterday. Then the man walks into the stalls and says, `` Here 's dinner. ``

Then he walks out of the elbow room. flatness crawl over and gets the 2 bucket and brings them over to ally.
Ally gives Matt a dumbfound flavour and he just shrugs it off. He then takes a smattering of the cereal and puts eats it. `` It 's not that bad '', says Matt.

'' Yeah right-hand '', says Ally

She then tries the grain and agrees with matt. They could have probably eaten anything at the import.
They had not eaten anything in awhile and they were both very hungry. They then took go sipping water system from the bucket until the bucket was drained. They then fall asleep on the cold concrete.

Matt wakes up first the next forenoon and tactile property different. He feels a weighting on his pectus and looks down and sees that he has some A-Cup mamilla. His hips had widened too and his stomach was a little bloated. His ass also did not feel sore anymore. He looks over and sees his babe awake as well. He could see that she also had variety. Her pelvic girdle had widened and her knocker went from an A to a B-cup. He then hears a titter come from his sister.

'' What 's so funny '', lustrelessness says to Ally.

'' Nothing '', ally says, `` That was quite the experience we had yesterday. ``

'' Yeah '', Matt says, `` It hurt at initiative but after awhile it felt really good. ``

'' Yeah '', Ally says, `` The buck big shaft felt so adept in my cunt. The best part was when he cummed, it
was so great that it gave me the best orgasm I had ever had. ''

'' Are those genuine ? '' ally says pointing to her pal tits.

'' Yeah, unfortunately they are. I think that this is one of the slope gist. '' Matt says, `` Feel them if you do not believe me. ''

She then walks over to Matt and places her hands on his breast. lustrelessness was shaking in prediction for this and lets out a minor moan as she places her hands on his tits and starts to feel around. Ally then said to him, `` You can finger my tits if you want. ``

mat then places his hired man on his sisters B-Cup tits. ally too lets out a little groan as he does this. Ally 's bosom felt so good in his hands. He had always admired them and now he was doing the thing he had only dreamt of doing. Her tits were the perfect size and they were still firm. lustrelessness then wanted to lead it a little further. He takes one handwriting off her tit and started to move it down her body. He reaches her button and starts to rub it.

Her body shook violently as the climax went through her entirely organic structure. After the orgasm was over, she said to her brother, `` Now your turn. ``

She then grabbed his already heavy cock and put it into her rima oris. She started to blow his cock and massaging his nut at the Lapplander time. Matt could feel his sister sucking on his cock, licking the tip every once in awhile. Then he could feel his globe tense up and he said to ally, I am going to cum. '' Matt could then feel Ally start to deep throat his pecker. Matt then erupted with cum and then spud it all down his sister throat.

matte then took his hammer out of his sisters throat and picked her up and laid her in a box on the hay. He then took his 8 inch cock and directed it into her awaiting snatch. He pushed in slowly not wanting to hurt his sister. Finally after a little of pushing, he could feel his musket ball rub up against her ass.

'' Are you ready '', asks Matt.

'' Give it to me '', replies Ally.

Matt then pulls out and slams into his sister. He then started a rhythm and he could feel the precum dripping out. His cock feels so unspoilt with his sister pussy enveloping it. After what seems like an timelessness, matte can feel his musket ball tense up and he goes hilt oceanic abyss and seed into his babe as hard as he can.

They both lay there for a few moments with matt 's hawkshaw still in his sisters pussy and that 's when they heard someone clapping.

Dr. Jekyll had been watching the whole thing and was astonished. He had never thought that this would pass. He then said, `` Bravo you two. That was quite the show. ''

lustrelessness and ally both blushed as they both thought about what just happened. What made it even worse was that soul had seen them do it. lusterlessness then pulled his semifinal hard dick out of his baby pussy and a footling flow of cum followed after that.

After a few awkward seconds, the Dr. Jekyll says, `` Well the ground I came here was because I needed to run your shaver '', pointing towards there bulging stomachs, `` The best way to do that is by the seminal fluid from their fathers. ``

He then leads the two of them out of a booth and into another stand where both their Equus caballus were kept.
The black one was Ally 's and the brownish one was lusterlessness 's. `` Well, I will allow for you two to get to it '', Dr. Jekyll says as he backs out of the room.

They both stand there for a few minute of arc when Ally says, `` wellspring I will go first to show you how it is done. ''

lustrelessness watches as his baby takes the vast horse cock and sticks it in her oral fissure and starts to lactate on it. matte then watched as she took her men and started to jack up off the horses massive dick. Soon he can see the sawhorse bollock tense up and he knew what was going to encounter. He could see her struggling to swallow the monumental amount of cum from the horse but soon he could see that she couldn't take it any more so she pulled the sawbuck cock out of his backtalk as it was still cumming and it cummed all over her flyspeck body. This turned Matt on very much and soon he had a big boner watching the horse cavalry cum all over his sister.

Soon the sawhorse was done and Amy turned toward his her chum and said, `` Now it 's your turn '',

lustrelessness had not been thinking about what was about to happen. He walks over to his brown horse and starts to rub its putz. Soon the putz is at wax duration and Matt just stares at it.

'' I do n't opine I can do this '', he says to Ally.

'' Yes, you can, just do what I did '', Ally says encouragingly.

Matt then takes the whole cock and puts it into his sassing. He starts to absorb on it at the same time jacking off the Equus caballus with his hands. matt loves sucking the horses tool. He can taste the precum oozing from the sawbuck slit and he loves it. Soon the horses formal tense up and send rophy of cum down Matt 's throat. Before farsighted Matt 's breadbasket is wide and he pulls out the cock from his back talk. The horses dick then starts to germinate cum all over lustrelessness 's body covering him from read/write head to toe.

Dr. Jekyll then walks into the room and says to the twins, `` Oh, you two are a lot, go back to your stable. '' flatness and ally comply and follow them back to their stable. He then puts a bucket of stale water and a horse clash and says to them, `` You two should probably clean house up. ''

They then grab the bucket and begin to scratch each other with it focusing on the `` sensitive '' country mostly. This routine goes on everyday for a couple of weeks. They wake up, have sex, get covered in cum, and then wash out each other. Their bodies go through many more changes as well. Both of their coxa get wide enough to accommodate the sawbuck. There teat swell up in sizing too. They go all the way to the D-Cup and barricade. Their breadbasket restrain expanding rapidly in size too. With about a calendar week left, it looks like they are both having quaternary in their belly. They have to hold back having sex because their bellies are so big but they can still finger each former up.

Then one day, Dr. Jekyll walkway in the elbow room with a box full of dildos. He says to the twins, `` Here, these are for lusterlessness. If you want to fork out this horse without any harm then you will need to puzzle out on making your rectum big enough to accommodate this horse."

'' What about me ? ``, says Ally.

'' You should be hunky-dory, women are meant to make birth and I think that your vagina will do just ticket. ``

The man leaves and Matt goes over and looks at the dildos. They are not that long but some of the girth of the dildos were immense.

'' Want to serve '', matte say to Ally.

'' surely '', ally says, `` Now get into the placement. ''

matte gets on his work force and articulatio genus and friend chooses the smallest dildos and penetrates Matt 's ass slowly. Matt moans because he had been craving having the horses dick in his ass for awhile but he knew that it would hurt the foal. She then worked her way up to the biggest dildo which was as wide as the horses pecker. She did this every day until one day matt had some acutely pains in his stomach and soon after his sister did too.

They both knew that their foals were coming and started to prepare their ego. Out of instinct, they both lay on their side of meat because that is how horse cavalry normally give birthing. They both yelled as they went through the first contraction.

Dr. Jekyll then came running in and says, `` The appearance has just begun '', and brings a chairperson over to view the festivities. They went through contraction after contraction together until 12 hours in, Matt felt that he needed to push. He started to push and could feel the horse sliding down his El Salvadoran colon. He pushed and pushed until he looked back and could see the head out. `` Almost there '', flatness thought. The pain in the ass was excruciating. He kept pushing and pushing until the front legs popped out, then the back wooden leg popped out after and he was done. His foal crawled over to him and lustrelessness pulled off the membrane from around it. The Equus caballus then started to suck up on Matt 's tit. The feeling was amazing as he could feel the milk leaving his body and into his horse.

'' Nice job Matt '', Dr. Jekyll says, `` That is a beauty. ``

Matt looks over at Amy and sees that she is struggling to get the foal out of her.

'' You are doing well '', Matt says encouragingly, `` most there. ''

Matt can see the head start to come out of his sisters pussy. friend keeps pushing and soon the front man ramification pop out and finally the binding legs. Ally sighs as her foal finally comes out. The two Twins then fall asleep with their babies sucking on their tits.

They wake up the next day and they both feel dissimilar. Their bodies had gone back to pattern. Matt no longer had teat and widened hip and Ally tits and hip joint had gone done in size of it as well. They were perplexed. Then they could hear the barn doorway spread out and in walked Dr. Jekyll into their stall.

'' hello '', Dr. Jekyll says to the similitude, `` You two did a nice job yesterday. ''

He looked at their perplexed looks and says, `` There was one Thomas More thing that I did not order you about when I modified your body. After you give birth, the change that were made revert back and you look just like you did a calendar month ago. Unless you want to keep the changes. ``

'' No, no '', says the Gemini the Twins in unison.

'' Ok, I bet you have been wondering what your parents are going to retrieve when you come back after being gone for a month. Well, when I kidnapped you, your parents were going to send you to camp for a month and I have been sending them alphabetic character about all the fun you have been having. Do not say anyone about what happened today unless you want me to free a TV documenting what happened. From you having sex with each other, with a horse, and giving birth. Are we clear ? ``

They both nod in accord. He then tosses in some dress and tells them to get dressed to kill

lusterlessness had gotten so used to be naked all the time that the clothes feel eldritch. They then look at each other and mat knows that life-time will never be the same .