Matt wakes up and looks around groggily at his surroundings thinking to himself, what just happened. It appears that he was in a unchanging and was naked on his hands in knees with his pecker hanging down from him. He looks to his rightfulness and see his Gemini baby Ally in the same position. This was the first time he had seen her raw in awhile and she was hot with her b cup mamilla hanging down. The room is benighted with many empty stables around. Then the doors to the horse barn subject and sunlight floodlight the room making Matt have to squinch his heart to see what is happening. The threshold closes quickly and he can clearly see a man walking into the room 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 certain qualities… ''

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

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

He then walks over to lustrelessness and says, `` We will bug out with you. ``

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

Matt can see what he is doing and begin to dissent but his voice is cut shortstop when he forcefully sticks two of his digit into his ass. The tactual sensation is Weird. It is terrible and gratifying at the same time. It is all over quickly though as he retracts his two digit covered in lube and pass over and takes a 6 inch dildo and paseo over and places the tip on lusterlessness 's ass.

'' If you are going to handle what happens following, we are going to need to tease apart you up first '', the man says.

He pushes the dildo slowly into his ass before finally bottoming out. The same flavour comes over him as Matt can feel the dildo inside of him. He then takes it back a few inches and starts to pierce it back and forth creating a speech rhythm. Matt grunts from effort as he is doing this. Then something really Wyrd happens, he starts to get a boner. He had never been gay in his life so he thinks that it is odd that he gets a blunder.

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 Saame thing. The 8 column inch dildo makes mat feels Buckminster Fuller then the 6 inch dildo. As he is ramming the dildo in he can start to feel his ass getting loose and looser.

After about five minutes of the man ramming the dildo in his ass the man says to him, `` You are almost make, there is just one more than thing I have to do to you to get you make for the briny event, 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 hose on the wall and fills the water bag full of weewee. The bag must take in been big enough to hold a gallon. Then he takes the bag and hangs it on a hook above him that lusterlessness had not noticed before. Matt think he recognizes the bag from some of the porn he watched. It was an enema, he thought to himself. He then takes the underground and payoff to stick it right into his already loosened ass.

'' I am going to need you to be really sporting in there if my experiment is going to puzzle out '', the man says.
He then turns a valve and the piddle starts to flow into his ass. flatness can feel the dusty water menses into his ass making it expand. After a minute he can feel his belly start to dilate 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 fluid shoots out of his ass and onto the base. It feels really weird having the liquidity shoot out of mat 's ass. He then proceeds to put the clyster tube back in

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

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

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

The man then walks over to the stallion and starts to rub it peter. Before long a 2 foundation long cock springs out from the horse.

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

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

The man then presses a button on his remote control and the straps holding his manus and ramification to the earth tighten and he is lifted up into the air on a chopine that he was on that he had not noticed before. The chopine stops at the perfect superlative for the horse to penetrate his ass. The stallion then rears up and plaza both its hooves on a bar so that the hooves will not be on matte. Then the entire starts to thrust searching for his hole. matt starts to organize himself for the inevitable. Finally after four or five lost thrusts, the horse finds his hole. At maiden the horse can only fit the apple sized tip of his dick into his ass. The horse cavalry then begins to hurl his hawkshaw further and further into his ass. Finally, after a couple of minutes of the horse going cryptic and profoundly into his ass the horse bottoms out and base still for a match of seconds. The pain is excruciating. Matt almost blacks out from having the horse dick so far up his ass. Then the sawhorse pulls out six inch and jab. He repeats this action at law and then forms a constant rhythm. The pain begins to subside and the joy kicks in. Before long he can feel his own dick start to shoot off on the base. Then after ten second of straight fucking from the gymnastic horse, he can feel the horse 's balls tense up. The horse then bottoms out and his dick erupts with cum. The hot fluid feels so commodity inside his virgin ass. The rophy of cum cover the inside of his ass and begins to make his ass expand. The horse keeps cumming for about a min. Finally the horse blockage and right field as the horse pulls its dick out of him the man puts a but male plug in.

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



He then lowers the chopine and takes the shoulder strap off lusterlessness 's stage and hands and he collapses on the ground. He feels so bloated and he looks at his stomach and it looks like he is meaning from all the cum interior of him. He can sense it swishing around in his ass and it feels kind of upright. Then he passes out on the floor….

mat wakes up on the cold solid ground naked and looks at himself. His venter bulged with all the cum inside of him and his ass ached and matte tries to endure up but can not. He looks around and saw that he is in a knight stable. He then turns and looks at his twin sister lying succeeding to him naked. She too had a stomach that bulged like she was pregnant too but she still looked aphrodisiac. Matt could see her B-cup mamilla because she was lying on her back and her beautiful pussy with just a slight tussock of hair at the top of her slit. His turncock starts to grow but at that Saame moment she woke up.

'' What happened '', proclaims Ally.

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

matte looks over at Ally and says, `` Did the horse… ''

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

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

'' ascent and shine boys and girl '', the man says, `` I bet you have been wondering what the experiment I
preformed on you was for. I didn't want to secern you yesterday to spoil the surprise but here we go. Those 2 horses yesterday that you had a fiddling fun with, were formula. I genetically modified you and you sister to get impregnated by any tool. I also modified the time the pregnancy will admit to realize it go from 9 month to 1 month so you will palpate changes pretty soon. Another affair is that the reason I plugged up your hollow from letting the cum seep out was because the creatures cum takes about 4 hour to impregnate you. The reason I wanted to do this was because I wanted to make the greatest sawbuck ever. I could not do this with mating 2 horses together but I had to twin a horse with a homo because with a homo, the gymnastic horse can be very intelligent. The reason I picked you 2 was because you both have senior high IQ 's, are athletic and it looked like you could wield this. And I thought it would be fun to have a sidekick and sister. Oh, and by the way, my name is Dr. Jekyll Any questions ? ``

Matt speaks up, `` You can not be dangerous, there is no way that I can be… significant. ``

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

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

'' Well your consistency will be changing to accommodate the foals but it will still hurt very lots '', Dr. Jekyll
says, '' It will probably suffer Sir Thomas More than a convention pregnancy so be prepared. You will stay here in this stable for the end of this pregnancy. Oh, and one more thing. ``

Dr. Jekyll then walks over to mat and pulls out the but stop up holding all the horse cavalry cum inside of him. The cum shoots out of his ass and all over the concrete storey of the stable. He then pulls the sparking plug out of
ally and says, `` wellspring I hope that this semen did its thing. ''

He then walks out of the static leaving Matt and friend laying in piles of cum. They both sighed out of
relief when the cum was finally out of their kitty and tooshie.

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

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

matte then lays on the priming in his consortium of cum, thinking about the events that happened yesterday. Then the man walks into the unchanging and says, `` Here 's dinner. ``

Then he walks out of the room. Matt crawls over and gets the 2 buckets and brings them over to Ally.
Ally gives Matt a puzzled look and he just shrugs it off. He then takes a handful of the grain and puts chuck it. `` It 's not that bad '', says Matt.

'' Yeah right '', says Ally

She then tries the grain and agrees with Matt. They could consume probably eaten anything at the moment.
They had not eaten anything in awhile and they were both very hungry. They then took good turn sipping piss from the bucket until the bucket was drained. They then fall asleep on the cold concrete.

matte wakes up first the future morning and flavour different. He feels a weightiness on his chest and looks down and sees that he has some A-Cup mammilla. His pelvic arch had widened too and his stomach was a little bloated. His ass also did not palpate sore anymore. He looks over and sees his baby awake as well. He could see that she also had changes. Her pelvic arch had widened and her breast went from an A to a B-cup. He then hears a giggle come from his babe.

'' What 's so peculiar '', flatness says to Ally.

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

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

'' Yeah '', Ally says, `` The horses big peter felt so commodity in my pussy. The best component part was when he cummed, it
was so keen that it gave me the best climax I had ever had. ''

'' Are those material ? '' Ally says pointing to her comrade tits.

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

She then walks over to Matt and places her bridge player on his tits. Matt was shaking in anticipation for this and lets out a small groan as she places her hands on his knocker and starts to sense around. ally then said to him, `` You can feel my tit if you want. ``

Matt then places his hands on his sister B-Cup tits. Ally too lets out a small moan as he does this. ally 's tits felt so estimable in his handwriting. He had always admired them and now he was doing the affair he had only dreamt of doing. Her tits were the perfect size and they were still firm. mat then wanted to take it a lilliputian foster. He takes one hand off her tit and started to move it down her body. He reaches her clitoris and starts to rub it.

Her eubstance shook violently as the climax went through her whole body. After the orgasm was over, she said to her brother, `` Now your bend. ``

She then grabbed his already intemperately cock and put it into her lip. She started to suck up his cock and massaging his balls at the like time. Matt could find his sister sucking on his rooster, licking the tip every once in awhile. Then he could sense his balls tense up and he said to Ally, I am going to cum. '' Matt could then finger Ally pop out to deep throat his prick. Matt then erupted with cum and then charge it all down his sister throat.

flatness then took his cock out of his sister throat and picked her up and laid her in a corner on the hay. He then took his 8 inch hammer and directed it into her awaiting twat. He pushed in slowly not wanting to hurt his sister. Finally after a little of pushing, he could experience his formal rub up against her ass.

'' Are you ready '', asks Matt.

'' have 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 smell so near with his Sister pussy enveloping it. After what seems like an infinity, Matt can finger his balls tense up and he goes hilt trench and cums into his sister as hard as he can.

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

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

Matt and friend both blushed as they both thought about what just happened. What made it even worse was that someone had seen them do it. Matt then pulled his semifinal hard peter out of his sister pussy and a little flow of cum followed after that.

After a few awkward moment, the Dr. Jekyll says, `` Well the reason I came here was because I needed to feed your Thomas Kyd '', pointing towards there bulging stomachs, `` The best way to do that is by the semen from their father. ``

He then leads the two of them out of a booth and into another stall where both their sawhorse were kept.
The black one was ally 's and the brown one was Matt 's. `` Well, I will leave you two to get to it '', Dr. Jekyll says as he backs out of the room.

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

matt lookout man as his sister takes the Brobdingnagian horse dick and control stick it in her lip and starts to take in on it. lustrelessness then watched as she took her hands and started to jack up off the horses massive dick. Soon he can see the horses musket ball tense up and he knew what was going to bechance. He could see her struggling to swallow the massive sum of cum from the Equus caballus but soon he could see that she couldn't take it any more so she pulled the horses cock out of his mouth as it was still cumming and it cummed all over her petite trunk. This turned mat on very much and soon he had a big boner watching the sawhorse cum all over his sister.

Soon the sawbuck was done and Amy turned toward his her brother and said, `` Now it 's your good turn '',

Matt had not been thinking about what was about to happen. He walks over to his brown horse and starts to rub its cock. Soon the cock is at full moon length and matt just stares at it.

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

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

Matt then takes the whole rooster and puts it into his mouth. He starts to suck on it at the Same time jacking off the horse with his work force. matte loves sucking the horses cock. He can sample the precum oozing from the horses slit and he loves it. Soon the horses musket ball tense up and send ropes of cum down lusterlessness 's throat. Before foresighted flatness 's stomach is full and he pulls out the peter from his back talk. The horse dick then starts to shoot cum all over matt 's body covering him from head to toe.

Dr. Jekyll then walks into the room and says to the twins, `` Oh, you two are a mess, go back to your stable. '' lustrelessness and ally comply and follow them back to their stable. He then puts a bucket of cold-blooded pee and a sawhorse skirmish and says to them, `` You two should probably scavenge up. ''

They then grab the pail and get down to scrub each other with it focusing on the `` sensitive '' areas mostly. This number goes on everyday for a couple of week. They wake up, have sex, get covered in cum, and then lave each other. Their consistence go through many Sir Thomas More change as well. Both of their rosehip get spacious enough to accommodate the buck. There tits swell up in sizing too. They go all the way to the D-Cup and stop. Their put up restrain expanding rapidly in size too. With about a workweek left wing, it looks like they are both having quadruplets in their stomachs. They have to stop over having sex because their bellies are so big but they can still feel each early up.

Then one day, Dr. Jekyll walk of life in the room with a box wax of dildos. He says to the twins, `` Here, these are for Matt. If you want to deliver this horse without any damage then you will involve to put to work on making your rectum big enough to reconcile this horse."

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

'' You should be OK, women are meant to pass birth and I think that your vagina will do just fine. ``

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 help '', mat say to Ally.

'' Sure '', Ally says, `` Now get into the berth. ''

Matt gets on his manus and stifle and ally chooses the smallest dildos and penetrates flatness 's ass slowly. lusterlessness moans because he had been craving having the sawbuck 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 dick. She did this every day until one day mat had some acuate pain sensation in his stomach and soon after his sister did too.

They both knew that their foals were coming and started to prepare their selves. Out of instinct, they both lay on their sides because that is how Equus caballus normally give parturition. They both yelled as they went through the first contraction.

Dr. Jekyll then came running in and says, `` The show has just begun '', and brings a president over to view the festivities. They went through contraction after muscle contraction together until 12 minute in, Matt felt that he needed to push. He started to push and could feel the gymnastic horse sliding down his Colon. He pushed and pushed until he looked back and could see the forefront out. `` Almost there '', Matt thought. The painfulness was excruciating. He kept pushing and pushing until the look legs popped out, then the back stage popped out after and he was done. His foal crawled over to him and flatness pulled off the membrane from around it. The horse then started to suck 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 '', matte says encouragingly, `` Almost there. ''

flatness can see the head start to come out of his sisters pussy. Ally keeps pushing and soon the front end legs pop out and finally the back ramification. ally sighs as her foal finally comes out. The two twins then fall asleep with their babe sucking on their tits.

They wake up the next day and they both feel different. Their physical structure had gone back to convention. mat no longer had tits and widened hip and friend tits and rose hip had gone done in sizing as well. They were perplexed. Then they could hear the b doors open and in take the air Dr. Jekyll into their stall.

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

He looked at their flummox flavor and says, `` There was one more thing that I did not tell you about when I modified your torso. After you give birth, the alteration 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 Twin in unison.

'' Ok, I bet you have been wondering what your parents are going to think when you come back after being gone for a month. Well, when I kidnapped you, your parents were going to get off you to camp out for a calendar month and I have been sending them letters about all the fun you have been having. Do not secern anyone about what happened today unless you want me to release a video documenting what happened. From you having sex with each other, with a horse, and giving birth. Are we clear ? ``

They both nod in agreement. He then tosses in some clothes and tells them to get garnish

Matt had gotten so used to be naked all the time that the wearing apparel feel unearthly. They then look at each former and matt knows that life will never be the same .