lustrelessness 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 right and see his Twin babe Ally in the Sami position. This was the first meter he had seen her raw in awhile and she was hot with her b cup breast hanging down. The room is dark with many empty horse barn around. Then the doorway to the static open and sun floodlight the room making flatness have to squinch his center to see what is happening. The doors 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 terrace and starts to lecture to them.

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

His babe and him don't respond.

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

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

The man continues, `` This experiment will hurt, I will say you that, but when it is over we will have created something marvellous. ``

He then walks over to mat and says, `` We will come out with you. ``

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

mat can see what he is doing and begin to protest but his voice is cut short when he forcefully sticks two of his digit into his ass. The feeling is eldritch. It is awful and gratifying at the same time. It is all over quickly though as he retracts his two fingers covered in lube and walking over and takes a 6 inch dildo and walks over and places the tip on Matt 's ass.

'' If you are going to handle what happens next, we are going to ask to loosen 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 flatness can feel the dildo inside of him. He then takes it back a few inches and starts to squeeze it back and Forth creating a rhythm. lustrelessness grunt from elbow grease as he is doing this. Then something really uncanny happens, he starts to get a boner. He had never been gay in his life history 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 Buckminster Fuller then the 6 inch dildo. As he is ramming the dildo in he can start to palpate his ass getting wanton 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 independent outcome, I have to clean you from the interior out. ``


He then goes over to his bag and takes out a tube attached to a big water system bag. He goes over to a hosiery on the rampart and fills the water bag total of water supply. The bag must give birth been big enough to hold a gallon. Then he takes the bag and hangs it on a hook above him that matte had not noticed before. matt think he recognizes the bag from some of the smut he watched. It was an clyster, he thought to himself. He then takes the tube and proceeds to vex it right into his already loosened ass.

'' I am going to involve you to be really fair in there if my experiment is going to work out '', the man says.
He then turns a valve and the piddle starts to flow into his ass. lusterlessness can feel the insensate pee flow 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 floor. It feels really eldritch having the liquidity shoot out of Matt 's ass. He then proceeds to put the enema underground back in

Matt '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 set up, bring him in. ``

lusterlessness turns around and sees the doorway to the barn candid and a man walks in directing a stallion 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 farsighted cock springs out from the horse.

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

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

The man then presses a push button on his remote and the shoulder strap holding his hand and pegleg to the terra firma 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 stature for the horse to riddle his ass. The stallion then rears up and places both its hooves on a bar so that the hooves will not be on lustrelessness. Then the stallion starts to force searching for his maw. Matt starts to train himself for the inevitable. Finally after four or five missed thrusts, the horse finds his fix. At first the horse can only fit the apple sized tip of his tool into his ass. The horse then begins to thrust his dick further and further into his ass. Finally, after a couple of minutes of the horse going bass and deeper into his ass the Equus caballus bottoms out and stands still for a couple of minute. The infliction is excruciating. matte almost blacks out from having the sawbuck dick so far up his ass. Then the cavalry pulls out six column inch and poking. He repeats this natural process and then forms a changeless rhythm. The pain begins to subside and the pleasure kicks in. Before long he can finger his own dick start to tear off on the floor. Then after ten minutes of true fucking from the horse cavalry, he can sense the sawhorse 's testicle tense up. The buck then bottoms out and his gumshoe erupts with cum. The hot fluid feels so good inside his virgin ass. The ropes of cum cover the interior of his ass and begins to name his ass expand. The Equus caballus keeps cumming for about a minute. Finally the horse blockage and right as the horse pulls its dick out of him the man puts a but fireplug in.

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



He then lowers the platform and takes the shoulder strap off matte 's peg and mitt and he collapses on the ground. He feels so bloated and he looks at his tummy and it looks like he is meaning from all the cum inside of him. He can finger it swishing around in his ass and it feels sort of dependable. Then he passes out on the floor….

Matt wakes up on the cold ground naked and looks at himself. His tummy bulged with all the cum inside of him and his ass ached and Matt effort to tolerate up but can not. He looks around and saw that he is in a horse cavalry unchanging. He then turns and looks at his Twin sister lying next to him naked. She too had a stomach that bulged like she was pregnant too but she still looked sexy. flatness could see her B-cup nipple because she was lying on her back and her beautiful pussy with just a trivial tuft of tomentum at the top of her slit. His cock starts to grow but at that same moment she woke up.

'' What happened '', proclaims Ally.

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

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

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

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

'' raise and refulgence 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 mishandle the surprise but here we go. Those 2 buck 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 clip the gestation will make to make it go from 9 months to 1 month so you will finger alteration pretty soon. Another thing is that the reason I plugged up your holes from letting the cum seep out was because the brute cum takes about 4 hours to instill you. The ground I wanted to do this was because I wanted to make the heavy horse ever. I could not do this with mating 2 cavalry together but I had to mate a buck with a human being because with a human, the knight can be very healthy. The reason I picked you 2 was because you both have high IQ 's, are athletic and it looked like you could handle this. And I thought it would be fun to have a brother and sister. Oh, and by the way, my epithet is Dr. Jekyll Any query ? ``

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

'' Oh, I am quite severe '', Dr. Jekyll says, `` I have given you, ah I don't want to get into specific. Any Sir Thomas More head ? ``

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

'' Well your torso will be changing to fit the foals but it will still hurt very much '', Dr. Jekyll
says, '' It will probably spite more than than a rule gestation so be prepared. You will stay here in this stable for the end of this maternity. Oh, and one more affair. ``

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 floor of the stable. He then pulls the plug out of
friend and says, `` wellspring I hope that this seed did its affair. ''

He then walks out of the stable leaving Matt and friend laying in mess of cum. They both sighed out of
relief when the cum was finally out of their pussy 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 pond of cum, thinking about the effect 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 friend.
friend gives Matt a puzzle look and he just shrugs it off. He then takes a handful of the grain and puts eats it. `` It 's not that bad '', says Matt.

'' Yeah flop '', says Ally

She then tries the texture and agrees with Matt. They could have probably eaten anything at the moment.
They had not eaten anything in awhile and they were both very hungry. They then took turning sipping urine from the pail until the bucket was drained. They then fall asleep on the stale concrete.

matte wakes up first the next dawning and flavor different. He feels a weight on his chest and looks down and sees that he has some A-Cup tits. His hips had widened too and his stomach was a short bloated. His ass also did not find sore anymore. He looks over and sees his sister awake as well. He could see that she also had changes. Her hip had widened and her pap went from an A to a B-cup. He then hears a giggle semen from his baby.

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

'' naught '', Ally says, `` That was quite the experience we had yesterday. ``

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

'' Yeah '', Ally says, `` The horse big dick felt so salutary in my pussy. The Best part was when he cummed, it
was so great that it gave me the sound orgasm I had ever had. ''

'' Are those really ? '' friend 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 Matt and places her hands on his tits. Matt was shaking in prediction for this and lets out a minuscule moan as she places her custody on his tits and starts to find around. Ally then said to him, `` You can feel my tit if you want. ``

Matt then places his manpower on his sisters B-Cup pap. Ally too lets out a minuscule moan as he does this. Ally 's tits felt so good in his hands. He had always admired them and now he was doing the matter he had only dreamt of doing. Her mammilla were the perfect size and they were still firm. Matt then wanted to take it a little further. He takes one hand off her tit and started to be active it down her body. He reaches her clit and starts to rub it.

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

She then grabbed his already intemperately rooster and put it into her mouth. She started to draw his peter and massaging his balls at the same meter. matt could experience his Sister sucking on his tool, licking the tip every once in awhile. Then he could experience his balls tense up and he said to friend, I am going to cum. '' Matt could then experience Ally start up to deep throat his cock. lustrelessness then erupted with cum and then shot it all down his Sister throat.

lustrelessness then took his cock out of his sisters throat and picked her up and laid her in a turning point on the hay. He then took his 8 inch cock and directed it into her awaiting puss. He pushed in slowly not wanting to smart his sister. Finally after a little of pushing, he could feel his glob rub up against her ass.

'' Are you ready '', asks Matt.

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

flatness then pulls out and slams into his sister. He then started a rhythm and he could finger the precum dripping out. His pecker feeling so goodness 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 cum into his sis as hard as he can.

They both lay there for a few here and now with matt 's pecker still in his sisters pussy and that 's when they heard soul clapping.

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

flatness and Ally both blushed as they both thought about what just happened. What made it even worse was that someone had seen them do it. matte then pulled his tractor trailer hard dick out of his sisters pussy and a little stream of cum followed after that.

After a few awkward seconds, the Dr. Jekyll says, `` Well the rationality I came here was because I needed to feed in your child '', pointing towards there bulging belly, `` The best way to do that is by the come 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 mat '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, `` Well I will go first to depict you how it is done. ''

Matt watches as his sister takes the huge horse pecker and sticks it in her mouth and starts to suck on it. lustrelessness then watched as she took her men and started to jack up off the Equus caballus massive dick. Soon he can see the horses formal tense up and he knew what was going to happen. He could see her struggling to swallow the massive amounts of cum from the gymnastic horse but soon he could see that she couldn't take it any more so she pulled the sawbuck cock out of his mouth as it was still cumming and it cummed all over her petite body. This turned matte on very much and soon he had a big boner watching the horse cum all over his sister.

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

matte had not been thinking about what was about to happen. He walks over to his Robert Brown sawbuck and starts to rub its dick. Soon the shaft is at full length and mat just stares at it.

'' I do n't intend 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 same time jacking off the horse with his hands. Matt loves sucking the cavalry cock. He can try the precum oozing from the horses slit and he loves it. Soon the sawbuck orchis tense up and send forget me drug of cum down Matt 's throat. Before long Matt 's stomach is full and he pulls out the prick from his sassing. The cavalry dick then starts to shoot cum all over matt 's body covering him from principal to toe.

Dr. Jekyll then walks into the room and says to the twins, `` Oh, you two are a plenty, go back to your stable. '' lusterlessness and friend comply and follow them back to their horse barn. He then puts a bucketful of frigidness water and a horse skirmish and says to them, `` You two should probably clean up. ''

They then grab the pail and begin to scrub up each other with it focusing on the `` sensitive '' areas mostly. This routine goes on everyday for a match 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 hips get extensive enough to accommodate the horse. There boob swell up in size of it too. They go all the way to the D-Cup and block up. Their tum keep expanding rapidly in size too. With about a week left, it looks like they are both having IV in their stomach. They have to lay off having sex because their belly are so big but they can still find each other up.

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

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

'' You should be okay, women are meant to give parturition and I think that your vagina will do just fine. ``

The man leaves and mat goes over and looks at the dildos. They are not that long but some of the girths of the dildos were vast.

'' Want to aid '', matt say to Ally.

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

Matt gets on his mitt and stifle and Ally chooses the little dildos and penetrates matte 's ass slowly. matte moan because he had been craving having the Equus caballus 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 panoptic as the horses dick. She did this every day until one day matte had some acute pain in the neck in his stomach and soon after his sis did too.

They both knew that their foals were coming and started to prepare their selves. Out of instinct, they both lay on their slope because that is how horses normally give birth. 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 chairman over to watch over the festivities. They went through contraction after contraction together until 12 hour in, matte felt that he needed to push. He started to push and could finger the horse sliding down his colon. He pushed and pushed until he looked back and could see the caput out. `` Almost there '', lustrelessness thought. The pain was excruciating. He kept pushing and pushing until the front legs popped out, then the back ramification popped out after and he was done. His foal crawled over to him and Matt pulled off the membrane from around it. The sawbuck 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 flatness '', Dr. Jekyll says, `` That is a sweetheart. ``

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. ''

lusterlessness can see the question scratch line to total out of his sister pussy. Ally keeps pushing and soon the front legs pop out and finally the rear branch. 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 different. Their torso had gone back to formula. Matt no longer had teat and widened hips and friend tits and pelvic girdle had gone done in size of it as well. They were perplexed. Then they could get wind the b doors surface and in walked Dr. Jekyll into their stall.

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

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

'' No, no '', says the twins in unison.

'' Ok, I bet you have been wondering what your parents are going to imagine 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 severalise anyone about what happened today unless you want me to bring out a video documenting what happened. From you having sex with each early, 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 apparel

Matt had gotten so put-upon to be naked all the time that the dress feel weird. They then look at each other and Matt knows that biography will never be the Sami .