“Yeah right”, says Ally
She then tries the grain 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 turns sipping water from the bucket until the bucket was drained. They then fall asleep on the cold concrete.
Matt wakes up first the next morning and feels 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 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 changes. Her hips had widened and her tits went from an A to a B-cup. He then hears a giggle come from his sister.
“What’s so funny”, Matt says to Ally.
“Nothing”, Ally 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 horses big dick felt so good in my pussy. The best part was when he cummed, it
was so great that it gave me the best orgasm I had ever had.”
“Are those real?” 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 Matt and places her hands on his tits. Matt was shaking in anticipation for this and lets out a small moan as she places her hands on his tits and starts to feel around. Ally then said to him, “You can feel my tits if you want.”
Matt then places his hands on his sisters B-Cup tits. Ally too lets out a small 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 thing he had only dreamt of doing. Her tits 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 move it down her body. He reaches her clit and starts to rub it.
Her body shook violently as the orgasm 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 suck his cock and massaging his balls at the same time. Matt could feel his sister sucking on his cock, licking the tip every once in awhile. Then he could feel his balls 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 shot it all down his sisters throat.
Matt then took his cock 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 rhythm and he could feel the precum dripping out. His cock feels so good with his sisters pussy enveloping it. After what seems like an eternity, Matt can feel his balls tense up and he goes hilt deep and cums into his sister as hard as he can.
They both lay there for a few moments with Matt’s dick 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 happen. He then said, “Bravo you two. That was quite the show.”
Matt 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. Matt then pulled his semi 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 reason I came here was because I needed to feed your kids”, pointing towards there bulging stomachs, “The best 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 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 minutes when Ally says, “Well I will go first to show you how it is done.”
Matt watches as his sister takes the huge horse cock and sticks it in her mouth and starts to suck on it. Matt then watched as she took her hands and started to jack off the horses massive dick. Soon he can see the horses balls tense up and he knew what was going to happen. He could see her struggling to swallow the massive amounts 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 mouth 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 boner watching the horse cum all over his sister.
Soon the horse was done and Amy turned toward his her brother and said, “Now it’s your 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 length and Matt just stares at it.
“I don’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 cock 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 horses cock. He can taste the precum oozing from the horses slit and he loves it. Soon the horses balls tense up and send ropes of cum down Matt’s throat. Before long Matt’s stomach is full and he pulls out the cock from his mouth. The horses 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.” Matt and Ally comply and follow them back to their stable. He then puts a bucket of cold water and a horse brush and says to them, “You two should probably clean up.”
They then grab the bucket and begin to scrub each other with it focusing on the “sensitive” areas mostly. This routine goes on everyday for a couple of weeks. They wake up, have sex, get covered in cum, and then wash each other. Their bodies go through many more changes as well. Both of their hips get wide 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 quadruplets in their stomachs. They have to stop having sex because their bellies are so big but they can still feel each other 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 Matt. If you want to deliver this horse without any damage then you will need to work on making your rectum big enough to accommodate this horse.”
“What about me?”, says Ally.
“You should be fine, women are meant to give 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”, Matt say to Ally.
“Sure”, Ally says, “Now get into the position.”
Matt gets on his hands and knees and Ally 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 dick. She did this every day until one day Matt had some sharp pains 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 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 chair over to watch 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 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 legs popped out, then the back legs popped out after and he was done. His foal crawled over to him and Matt 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”, Matt says encouragingly, “Almost there.”
Matt can see the head start to come out of his sisters pussy. Ally keeps pushing and soon the front legs pop out and finally the back 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 different. Their bodies had gone back to normal. Matt no longer had tits and widened hips and Ally tits and hips had gone done in size as well. They were perplexed. Then they could hear the barn doors open and in walked Dr. Jekyll into their stall.
“Hello”, Dr. Jekyll says to the twins, “You two did a nice 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 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 letters 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 other, with a horse, and giving birth. Are we clear?”
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