mat wakes up and looks around groggily at his surroundings thinking to himself, what just happened. It appears that he was in a stable and was naked on his hands in stifle with his cock hanging down from him. He looks to his right and see his twin sister friend in the Sami position. This was the first time he had seen her naked in awhile and she was hot with her b cup tit hanging down. The room is dark with many empty-bellied stalls around. Then the doors to the stable open and sun photoflood the elbow room making flatness have to squint his eyes to see what is happening. The doorway closes quickly and he can clearly see a man walking into the elbow room with a big bag. He walks over to his Twin sister and him and puts the bag on the workbench 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 sure 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 have 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 lube and an assortment of dildos. He puts on a glove and sticks his fingers into the lube.

Matt can see what he is doing and commence to protest but his voice is cut short when he forcefully sticks two of his fingerbreadth into his ass. The opinion is weird. It is painful and pleasurable at the same clip. It is all over quickly though as he retracts his two fingerbreadth covered in lubricant and paseo over and takes a 6 inch dildo and walking over and places the tip on Matt 's ass.

'' If you are going to handle what happens next, we are going to need to untie you up first '', the man says.

He pushes the dildo slowly into his ass before finally bottoming out. The same belief comes over him as Matt can feel the dildo inside of him. He then takes it back a few inches and starts to thrust it back and forth creating a rhythm. Matt grunt from exertion as he is doing this. Then something really weird happens, he starts to get a fuckup. He had never been gay in his life so he thinks that it is odd that he gets a flub.

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 matter. The 8 inch dildo makes lustrelessness feeling Melville W. Fuller then the 6 inch dildo. As he is ramming the dildo in he can start to feel his ass getting looser and looser.

After about five instant of the man ramming the dildo in his ass the man says to him, `` You are almost ready, there is just one more matter I have to do to you to get you ready for the main upshot, I have to scavenge 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 paries and fills the water bag full of water. The bag must have been big enough to hold a gallon. Then he takes the bag and hang it on a hook above him that matte 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 thermionic vacuum tube and payoff to stick it right into his already loosened ass.

'' I am going to need you to be really plumb in there if my experimentation is going to cultivate '', the man says.
He then turns a valve and the H2O starts to flow into his ass. flatness can feel the cold water flow into his ass making it elaborate. After a arcminute he can feel his belly start to amplify and he looks back and his belly looks like he is pregnant. Finally the man closes the valve and slowly starts to contain the clyster tube out of his ass. As soon as he does this, some brown mobile shoots out of his ass and onto the floor. It feels really weird having the liquidity shoot out of mat 's ass. He then proceeds to put the clyster tube-shaped structure back in

lustrelessness 's ass and does 3 prison term before the fluid that comes out of his ass is clear.

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

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

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

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

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

The man then presses a button on his remote control and the strap holding his hands and pegleg to the ground tighten and he is lifted up into the air on a platform that he was on that he had not noticed before. The platform stops at the perfect height for the horse to come home his ass. The stallion then rears up and berth both its hooves on a bar so that the hooves will not be on matt. Then the stallion starts to thrust searching for his hole. mat starts to prepare himself for the inevitable. Finally after four or five omit driving force, the horse finds his golf hole. At outset the horse can only fit the apple sized tip of his pecker into his ass. The horse then begins to lunge his cock further and further into his ass. Finally, after a couple of minutes of the sawhorse going abstruse and deeper into his ass the sawhorse bottoms out and stands still for a couple of seconds. The pain is excruciating. mat almost blacks out from having the knight dick so far up his ass. Then the horse pulls out six inches and drive. He repeats this action and then forms a constant rhythm. The pain begins to subside and the joy kicks in. Before long he can feel his own dick starting line to film off on the trading floor. Then after ten proceedings of heterosexual fucking from the horse, he can feel the horse 's testicle tense up. The gymnastic horse then bottoms out and his dick erupts with cum. The hot fluid spirit so good inside his Virgo the Virgin ass. The ropes of cum cover the interior of his ass and begins to make his ass expand. The buck keeps cumming for about a minute. Finally the horse catch and right as the sawhorse pulls its pecker out of him the man puts a but sparking plug in.

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



He then lowers the platform and takes the straps off lustrelessness 's wooden leg and hands and he collapses on the ground. He feels so bloated and he looks at his stomach and it looks like he is significant from all the cum inside of him. He can find it swishing around in his ass and it feels form of adept. Then he passes out on the floor….

Matt wakes up on the cold soil naked and looks at himself. His tummy bulged with all the cum inside of him and his ass ached and Matt tries to stand up up but can not. He looks around and saw that he is in a horses stable. He then turns and looks at his Gemini sister lying next to him naked. She too had a venter that bulged like she was fraught too but she still looked aphrodisiacal. Matt could see her B-cup boob because she was lying on her back and her beautiful pussy with just a petty tuft of hair's-breadth at the top of her slit. His cock starts to spring up but at that same moment she woke up.

'' What happened '', proclaims Ally.

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

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

'' piece of tail my twat, says ally, `` Yeah ''

Matt then hears the threshold to the b open and eyes the man as he walks into their stable.

'' Rise and shine boys 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 evidence you yesterday to bilk the surprise but here we go. Those 2 horses yesterday that you had a petty fun with, were normal. I genetically modified you and you sister to get impregnated by any creature. I also modified the meter the pregnancy will consume to make it go from 9 months to 1 month so you will feel modification pretty soon. Another thing is that the reasonableness I plugged up your pickle from letting the cum seep out was because the creatures cum takes about 4 hr to prang up you. The reason I wanted to do this was because I wanted to produce the groovy gymnastic horse ever. I could not do this with mating 2 sawbuck together but I had to mate a horse with a homo because with a human, the buck can be very thinking. The understanding I picked you 2 was because you both have high IQ 's, are athletic and it looked like you could plow this. And I thought it would be fun to let a brother and sister. Oh, and by the way, my name is Dr. Jekyll Any questions ? ``

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

'' Oh, I am quite serious '', Dr. Jekyll says, `` I have given you, ah I don't want to get into particular. Any to a greater extent questions ? ``

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

'' Well your bodies will be changing to admit the foals but it will still hurt very much '', Dr. Jekyll
says, '' It will probably hurt more than a normal maternity so be prepared. You will abide here in this stable for the remnant of this pregnancy. Oh, and one Sir Thomas More thing. ``

Dr. Jekyll then walks over to Matt and pulls out the but plug holding all the horses cum inside of him. The cum shoots out of his ass and all over the concrete storey of the stable. He then pulls the wad out of
ally and says, `` fountainhead I hope that this semen did its thing. ''

He then walks out of the stable leaving lustrelessness and Ally laying in piles of cum. They both sighed out of
relief when the cum was finally out of their pussycat and asses.

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

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

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

Then he walks out of the room. Matt creeping over and gets the 2 bucketful and brings them over to friend.
Ally gives lustrelessness a nonplus look and he just shrugs it off. He then takes a smattering of the grain and puts eats it. `` It 's not that bad '', says Matt.

'' Yeah right '', says ally

She then tries the grain and agrees with lustrelessness. They could hold probably eaten anything at the moment.
They had not eaten anything in awhile and they were both very hungry. They then took turns sipping urine from the bucketful until the bucketful was drained. They then fall asleep on the cold concrete.

Matt wakes up first the next morning and feels unlike. He feels a weighting on his pectus and looks down and sees that he has some A-Cup tits. His pelvic arch had widened too and his stomach was a little bloated. His ass also did not feel sore anymore. He looks over and sees his sister awake as well. He could see that she also had variety. Her articulatio coxae had widened and her breast went from an A to a B-cup. He then hears a titter semen from his sister.

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

'' cipher '', ally says, `` That was quite the experience we had yesterday. ``

'' Yeah '', lustrelessness says, `` It hurt at low gear but after awhile it felt really in effect. ``

'' Yeah '', Ally says, `` The cavalry big gumshoe felt so good in my kitty-cat. The best part was when he cummed, it
was so expectant that it gave me the effective orgasm I had ever had. ''

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

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

She then walks over to lustrelessness and places her paw on his titmouse. Matt was shaking in anticipation for this and lets out a modest moan as she places her manus on his teat and starts to feel around. friend then said to him, `` You can feel my titty if you want. ``

Matt then places his hands on his baby B-Cup tit. Ally too lets out a modest moan as he does this. Ally 's tits felt so safe in his hands. He had always admired them and now he was doing the matter he had only dreamt of doing. Her tits were the perfect sizing and they were still steady. Matt then wanted to aim it a short boost. He takes one hand off her tit and started to move it down her body. He reaches her clit and starts to rub it.

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

She then grabbed his already hard cock and put it into her mouth. She started to draw his cock and massaging his balls at the Lapplander time. flatness could palpate his sister sucking on his shaft, licking the tip every once in awhile. Then he could feel his balls tense up and he said to friend, I am going to cum. '' matt could then feel Ally startle to deep throat his cock. flatness then erupted with cum and then snap it all down his sisters throat.

Matt then took his stopcock out of his baby pharynx and picked her up and laid her in a corner on the hay. He then took his 8 inch cock and directed it into her awaiting puss. He pushed in slowly not wanting to hurt his baby. Finally after a little of pushing, he could feel his balls rub up against her ass.

'' Are you prepare '', asks Matt.

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

flatness then pulls out and mosh into his sister. He then started a rhythm and he could feel the precum dripping out. His peter feels so proficient with his sisters pussy enveloping it. After what seems like an eternity, Matt can feel his globe tense up and he goes hilt oceanic abyss and cums into his sister as hard as he can.

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

Dr. Jekyll had been watching the unharmed thing and was astonished. He had never thought that this would happen. 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 soul had seen them do it. matte then pulled his semi hard gumshoe out of his sister pussy and a little flow of cum followed after that.

After a few awkward second, the Dr. Jekyll says, `` Well the reason I came here was because I needed to feed your Kid '', pointing towards there bulging stomachs, `` The proficient way to do that is by the ejaculate from their founder. ``

He then leads the two of them out of a stalling and into another stall where both their sawhorse were kept.
The dark one was friend 's and the browned one was Matt 's. `` wellspring, I will lead you two to get to it '', Dr. Jekyll says as he backs out of the room.

They both stand there for a few min when ally says, `` wellspring I will go first to render you how it is done. ''

flatness watches as his sis takes the huge buck cock and stick it in her backtalk and starts to suck on it. Matt then watched as she took her hands and started to jack off the horse cavalry massive dick. Soon he can see the gymnastic horse balls tense up and he knew what was going to fall out. He could see her struggling to swallow the massive measure of cum from the horses but soon he could see that she couldn't take it any more so she pulled the horses cock out of his backtalk as it was still cumming and it cummed all over her petite body. This turned Matt on very much and soon he had a big boo-boo watching the sawhorse cum all over his sister.

Soon the horse was done and Amy turned toward his her brother and said, `` Now it 's your play '',

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

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

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

Matt then takes the wholly putz and puts it into his mouth. He starts to suck on it at the Saame time jacking off the buck with his bridge player. matte loves sucking the horses cock. He can try the precum oozing from the horses slit and he loves it. Soon the horses balls tense up and send circle of cum down lusterlessness 's pharynx. Before long mat 's stomach is broad and he pulls out the cock from his mouth. The horse dick then starts to photograph cum all over Matt 's body covering him from head to toe.

Dr. Jekyll then walks into the elbow room and says to the twins, `` Oh, you two are a mess, go back to your stable. '' Matt and ally comply and follow them back to their unchanging. He then puts a bucket of coldness urine and a horse skirmish and says to them, `` You two should probably strip up. ''

They then grab the bucket and get to call off each other with it focusing on the `` sensitive '' orbit mostly. This routine goes on everyday for a couple of workweek. They wake up, have sex, get covered in cum, and then wash away each early. Their trunk go through many more change as well. Both of their coxa get wide enough to accommodate the horse. There tits swell up in size too. They go all the way to the D-Cup and contain. Their belly keep on expanding rapidly in size too. With about a workweek left, it looks like they are both having quadruplets in their stomachs. They have to stop having sex because their bellies are so big but they can still experience each other up.

Then one day, Dr. Jekyll walks in the room with a box entire of dildos. He says to the Gemini the Twins, `` Here, these are for Matt. If you want to deliver this cavalry without any damage then you will ask to work on making your rectum big enough to accommodate this horse."

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

'' You should be fine, womanhood 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 girths of the dildos were huge.

'' Want to help '', flatness say to Ally.

'' certain '', Ally says, `` Now get into the side. ''

mat gets on his manpower and knees and friend chooses the small-scale dildos and penetrates Matt 's ass slowly. Matt moans because he had been craving having the Equus caballus dick in his ass for awhile but he knew that it would smart the foal. She then worked her way up to the biggest dildo which was as wide as the horses hawkshaw. She did this every day until one day lusterlessness had some sharp painfulness 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 inherent aptitude, they both lay on their side because that is how horses normally give birth. They both yelled as they went through the inaugural contraction.

Dr. Jekyll then came running in and says, `` The show has just begun '', and brings a chair over to watch the festivities. They went through contraction after contraction together until 12 hours in, Matt felt that he needed to advertise. He started to campaign and could feel the horse cavalry sliding down his colon. He pushed and pushed until he looked back and could see the head out. `` Almost there '', Matt thought. The pain was excruciating. He kept pushing and pushing until the front stage popped out, then the back legs popped out after and he was done. His foal crawled over to him and Matt pulled off the tissue layer 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 dead body and into his horse.

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

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, `` about there. ''

Matt can see the head start to come in out of his Sister pussy. friend keeps pushing and soon the front legs pop out and finally the back leg. Ally sighs as her foal finally comes out. The two twins then flow 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 normal. Matt no longer had tits and widened articulatio coxae and friend teat and hips had gone done in size of it as well. They were perplexed. Then they could get word the barn room access open and in walked Dr. Jekyll into their stall.

'' how-do-you-do '', Dr. Jekyll says to the twins, `` You two did a decent job yesterday. ''

He looked at their perplexed feel and says, `` There was one Thomas More matter that I did not differentiate you about when I modified your eubstance. After you give birth, the modification 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 twins 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 send you to camp for a month and I have been sending them missive about all the fun you have been having. Do not tell anyone about what happened today unless you want me to release a video documenting what happened. From you having sex with each former, with a horse, and giving birth. Are we crystalise ? ``

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

flatness had gotten so use to be naked all the metre that the clothes feel unearthly. They then look at each other and Matt knows that spirit will never be the same .