mat wakes up and looks around groggily at his surround thinking to himself, what just happened. It appears that he was in a horse barn and was naked on his workforce in knees with his peter hanging down from him. He looks to his right wing and see his twin baby ally in the same position. This was the first of all time he had seen her au naturel in awhile and she was hot with her b cup tits hanging down. The elbow room is drear with many empty-bellied stables around. Then the room access to the stable capable and sunshine floods the room making Matt have to squint 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 sure qualities… ''

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

The man continues, `` This experimentation will hurt, I will tell you that, but when it is over we will experience created something marvelous. ``

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

Then he opens his bag and takes out some lubricating substance and an assortment of dildos. He puts on a baseball mitt and sticks his finger's breadth into the lube.

lustrelessness can see what he is doing and get to protest but his voice is cut brusque when he forcefully sticks two of his fingerbreadth into his ass. The feeling is Wyrd. It is unspeakable and pleasurable at the same time. It is all over quickly though as he retracts his two fingers covered in lubricating substance and paseo over and takes a 6 inch dildo and walks over and places the tip on flatness 's ass.

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

He pushes the dildo slowly into his ass before finally bottoming out. The same flavor comes over him as matte can sense the dildo inside of him. He then takes it back a few column inch and starts to push up it back and Forth River creating a rhythm. mat oink from travail as he is doing this. Then something really eldritch 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 pratfall.

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 column inch dildo and does the Lapplander thing. The 8 in dildo makes Matt feel fuller then the 6 column inch dildo. As he is ramming the dildo in he can start to experience 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 make, there is just one more thing I have to do to you to get you ready for the main event, I have to make clean you from the inside out. ``


He then goes over to his bag and takes out a thermionic valve attached to a big water bag. He goes over to a hose on the wall and fills the pee bag full of piddle. The bag must throw been big enough to hold a gallon. Then he takes the bag and bent it on a hook 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 pipe and proceeds to stick it right into his already loosened ass.

'' I am going to need 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. Matt can finger the dusty water flow into his ass making it flesh out. After a arcminute he can feel his belly start to expatiate and he looks back and his belly looks like he is significant. Finally the man closes the valve and slowly starts to pack the clyster tube out of his ass. As soon as he does this, some embrown fluid shoots out of his ass and onto the storey. It feels really weird having the liquid shoot out of mat 's ass. He then proceeds to put the clyster subway system back in

Matt 's ass and does 3 time 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 doorway to the barn assailable 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 cock. Before long a 2 foot tenacious cock springs out from the horse.

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

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

The man then presses a button on his remote and the straps holding his hired man and legs to the undercoat 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 meridian for the horse to penetrate his ass. The stallion then rears up and berth both its hooves on a bar so that the hooves will not be on matte. Then the stallion starts to hurl searching for his muddle. flatness starts to organise himself for the inevitable. Finally after four or five lose thrusts, the horse finds his jam. At first the horse can only fit the apple sized tip of his dick into his ass. The buck then begins to push up his dick further and further into his ass. Finally, after a couple of minutes of the horse cavalry going mystifying and deeper into his ass the gymnastic horse bottoms out and viewpoint still for a couple of sec. The pain is excruciating. matt almost blacks out from having the buck peter so far up his ass. Then the horse pulls out six in and poking. He repeats this natural process and then forms a constant rhythm. The nuisance begins to settle and the pleasure kicks in. Before long he can feel his own peter start to flash off on the flooring. Then after ten minutes of straight fucking from the sawbuck, he can palpate the horse 's lump tense up. The horse then bottoms out and his prick erupts with cum. The hot fluid spirit so good inside his Virgo the Virgin ass. The roach of cum cover the interior of his ass and begins to make his ass expand. The horse keeps cumming for about a minute. Finally the horse stops and right field as the sawbuck pulls its cock out of him the man puts a but wad in.

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



He then lowers the platform and takes the straps off matt 's legs and mitt and he collapses on the ground. He feels so bloated and he looks at his stomach and it looks like he is pregnant from all the cum interior of him. He can sense it swishing around in his ass and it feels kind of good. Then he passes out on the floor….

mat wakes up on the cold flat coat naked and looks at himself. His stomach bulged with all the cum inside of him and his ass ached and matte tries to put up up but can not. He looks around and saw that he is in a cavalry stable. He then turns and looks at his twin sis lying next to him defenseless. She too had a stomach that bulged like she was pregnant too but she still looked aphrodisiacal. mat could see her B-cup tits because she was lying on her spine and her beautiful kitty-cat with just a trivial tuft of haircloth at the top of her slit. His dick starts to grow but at that Sami minute she woke up.

'' What happened '', proclaims Ally.

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

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

'' roll in the hay my pussy, says Ally, `` Yeah ''

matte then hears the doorway to the b undefendable and eyes the man as he walks into their stable.

'' climb and shine boys and young lady '', the man says, `` I bet you have been wondering what the experimentation I
preformed on you was for. I didn't want to tell you yesterday to spoil the surprise but here we go. Those 2 horses yesterday that you had a little fun with, were formula. I genetically modified you and you sister to get impregnated by any creature. I also modified the time the pregnancy will subscribe to to do it go from 9 months to 1 month so you will feel change pretty soon. Another thing is that the reason I plugged up your holes from letting the cum seep out was because the animate being cum takes about 4 hours to impregnate you. The grounds I wanted to do this was because I wanted to create the greatest horse ever. I could not do this with mating 2 horse together but I had to mate a horse with a human because with a human, the cavalry can be very intelligent. The ground I picked you 2 was because you both have mellow IQ 's, are gymnastic and it looked like you could address this. And I thought it would be fun to feature a comrade and sister. Oh, and by the way, my figure is Dr. Jekyll Any questions ? ``

lusterlessness 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 specific. Any Sir Thomas More dubiousness ? ``

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

'' Well your body will be changing to reconcile the foals but it will still hurt very much '', Dr. Jekyll
says, '' It will probably offend More than a normal pregnancy so be prepared. You will appease here in this stalls for the remainder of this gestation. Oh, and one more thing. ``

Dr. Jekyll then walks over to matt and pulls out the but ballyhoo 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, `` wellspring I hope that this semen did its affair. ''

He then walks out of the stable leaving mat and Ally laying in piles of cum. They both sighed out of
easing when the cum was finally out of their kitty and asses.

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

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

lusterlessness then lays on the dry land in his pool of cum, thinking about the result that happened yesterday. Then the man walks into the stable and says, `` Here 's dinner. ``

Then he walks out of the room. flatness crawls over and gets the 2 bucketful and brings them over to ally.
Ally gives matte a puzzled feel and he just shrugs it off. He then takes a handful of the cereal and puts eats it. `` It 's not that bad '', says Matt.

'' Yeah right '', says ally

She then tries the grain and agrees with matt. They could have probably eaten anything at the instant.
They had not eaten anything in awhile and they were both very athirst. They then took turns sipping water from the bucketful until the bucket was drained. They then fall asleep on the frigidness concrete.

mat wakes up first the next morning and feel different. He feels a weight 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 feel sore anymore. He looks over and sees his sis awake as well. He could see that she also had change. Her hips had widened and her tits went from an A to a B-cup. He then hears a giggle come from his sis.

'' What 's so rum '', Matt says to Ally.

'' zilch '', friend says, `` That was quite the experience we had yesterday. ``

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

'' Yeah '', ally says, `` The horse big dick felt so near in my pussy. The best component was when he cummed, it
was so great that it gave me the best sexual climax I had ever had. ''

'' Are those substantial ? '' ally says pointing to her sidekick tits.

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

She then walks over to Matt and places her hands on his tits. Matt was shaking in prediction for this and lets out a small moan as she places her hired man on his teat and starts to find around. friend then said to him, `` You can feel my tits if you want. ``

Matt then places his helping hand on his sisters B-Cup titmouse. friend too lets out a little moan as he does this. Ally 's pap felt so trade good in his hired hand. He had always admired them and now he was doing the thing he had only dreamt of doing. Her tit were the gross size and they were still solid. matt then wanted to take it a minuscule far. He takes one helping hand off her tit and started to incite 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 physical structure. After the coming was over, she said to her brother, `` Now your turn. ``

She then grabbed his already severely cock and put it into her rima oris. She started to suck his cock and massaging his testicle at the same time. matte could finger his sister sucking on his stopcock, licking the tip every once in awhile. Then he could find his clod tense up and he said to Ally, I am going to cum. '' Matt could then feel Ally start to deep throat his cock. Matt then erupted with cum and then sprout it all down his sisters throat.

Matt then took his stopcock out of his sisters throat 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 pussy. He pushed in slowly not wanting to hurt his sister. Finally after a little of pushing, he could feel his balls 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 musical rhythm and he could palpate the precum dripping out. His shaft feeling so effective with his sisters pussy enveloping it. After what seems like an eternity, Matt can feel his balls tense up and he goes hilt oceanic abyss and seminal fluid into his sis as hard as he can.

They both lay there for a few moments with Matt 's dick still in his Sister pussy and that 's when they heard mortal clapping.

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

matte 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. lustrelessness then pulled his semi hard dick out of his sisters pussy and a little watercourse of cum followed after that.

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

He then leads the two of them out of a stall and into another stall where both their horses were kept.
The black one was Ally 's and the brown one was flatness 's. `` fountainhead, 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 minutes when Ally says, `` wellspring I will go first to point you how it is done. ''

mat spotter as his Sister takes the Brobdingnagian horse cock and sticks it in her mouth and starts to take in on it. Matt then watched as she took her hand and started to jack up off the sawhorse monolithic gumshoe. Soon he can see the horses balls tense up and he knew what was going to find. 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 gymnastic horse cock out of his mouth as it was still cumming and it cummed all over her flyspeck body. This turned mat on very a great deal and soon he had a big bloomer watching the horse cum all over his sis.

Soon the sawhorse 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 pass off. He walks over to his brown horse cavalry and starts to rub its stopcock. Soon the prick is at full length and lusterlessness 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 whole pecker and puts it into his mouth. He starts to suck on it at the Saami clip jacking off the horse with his hands. mat loves sucking the knight cock. He can taste the precum oozing from the sawbuck cunt and he loves it. Soon the horse egg tense up and send ropes of cum down matt 's throat. Before long Matt 's abdomen is full and he pulls out the pecker from his mouth. The sawbuck dick then starts to shoot cum all over lusterlessness 's consistency covering him from head to toe.

Dr. Jekyll then walks into the way and says to the twin, `` Oh, you two are a mess, go back to your stable. '' mat and ally comply and follow them back to their stable. He then puts a bucket of moth-eaten water and a horse brush and says to them, `` You two should probably clean up. ''

They then grab the bucket and set about to scour each early with it focusing on the `` sensitive '' field mostly. This routine goes on everyday for a couple of week. They wake up, have sex, get covered in cum, and then wash each other. Their organic structure go through many more than changes as well. Both of their pelvic arch get broad enough to accommodate the horse. There tits swell up in size too. They go all the way to the D-Cup and stop. Their stomachs keep expanding rapidly in size too. With about a week left, it looks like they are both having quadruple in their belly. They have to hold back having sex because their bellies are so big but they can still feel each former up.

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

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

'' You should be hunky-dory, charwoman are meant to give 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 huge.

'' Want to assist '', Matt say to Ally.

'' Sure '', ally says, `` Now get into the perspective. ''

Matt gets on his hands and knees and Ally chooses the pocket-sized dildos and penetrates lustrelessness '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 braggy dildo which was as encompassing as the horses prick. She did this every day until one day Matt had some sharp pain sensation in his tummy and soon after his sister did too.

They both knew that their foals were coming and started to get up their self. Out of instinct, they both lay on their side because that is how horses normally give birth. They both yelled as they went through the firstly contraction.

Dr. Jekyll then came running in and says, `` The display has just begun '', and brings a chairperson over to watch the celebration. They went through condensation after contraction together until 12 hours in, Matt felt that he needed to push. He started to push and could feel the horse cavalry sliding down his colon. He pushed and pushed until he looked back and could see the capitulum out. `` Almost there '', lustrelessness thought. The pain was excruciating. He kept pushing and pushing until the face branch popped out, then the back leg popped out after and he was done. His foal crawled over to him and matt pulled off the membrane from around it. The buck then started to suck on Matt 's tit. The feeling was amazing as he could find the milk leaving his torso and into his horse.

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

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

'' You are doing well '', lusterlessness says encouragingly, `` Almost there. ''

Matt can see the head showtime to come in out of his babe pussy. friend keeps pushing and soon the nominal head branch pop out and finally the back legs. Ally sighs as her foal finally comes out. The two twin then accrue asleep with their babies sucking on their tits.

They wake up the next day and they both feel different. Their bodies had gone back to rule. lusterlessness no longer had tits and widened hips and friend tits and hips had gone done in size as well. They were perplexed. Then they could hear the barn door undetermined and in walked Dr. Jekyll into their stall.

'' hi '', Dr. Jekyll says to the twins, `` You two did a courteous job yesterday. ''

He looked at their perplexed looks and says, `` There was one more thing that I did not tell you about when I modified your bodies. After you give birth, the changes that were made revert back and you look just like you did a month ago. Unless you want to retain the modification. ``

'' 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. wellspring, when I kidnapped you, your parents were going to post you to camp for a month and I have been sending them letter of the alphabet about all the fun you have been having. Do not tell anyone about what happened today unless you want me to resign a video documenting what happened. From you having sex with each other, with a sawhorse, and giving giving birth. Are we bring in ? ``

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

Matt had gotten so utilise to be naked all the metre that the apparel feel weird. They then look at each early and matt knows that life will never be the same .