The Horse Experiment –Revised–

Matt 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 knees with his dick hanging down from him. He looks to his right and see his twin sister Ally in the same position. This was the first time he had seen her naked in awhile and she was hot with her b cup tits hanging down. The room is dark with many empty stables around. Then the doors to the stable open and sunlight floods the room making Matt have to squint his eyes to see what is happening. The doors 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”, 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 start 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 begin to protest but his voice is cut short when he forcefully sticks two of his finger into his ass. The feeling is weird. It is painful and pleasurable at the same time. It is all over quickly though as he retracts his two fingers covered in lube and walks 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 need to loosen you up first”, the man says.

He pushes the dildo slowly into his ass before finally bottoming out. The same feeling 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 grunts from exertion as he is doing this. Then something really weird 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 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 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 minutes of the man ramming the dildo in his ass the man says to him, “You are almost ready, there is just one more thing I have to do to you to get you ready for the main 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 water. The bag must have been big enough to hold a gallon. Then he takes the bag and hangs it on a hook above him that Matt 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 tube 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 feel the cold water flow into his ass making it expand. After a minute he can feel his belly start to expand 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 weird having the liquid shoot out of Matt’s ass. He then proceeds to put the enema tube 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 ready, bring him in.”

Matt turns around and sees the doors to the barn open and a man walks in directing a stallion behind him. “Oh no”, Matt thinks to himself, “this can’t be.”

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

Matt 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 and the straps holding his hands and legs 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 penetrate his ass. The stallion then rears up and places 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. Matt starts to prepare himself for the inevitable. Finally after four or five missed thrusts, the horse finds his hole. At first the horse can only fit the apple sized tip of his dick into his ass. The horse then begins to thrust his dick further and further into his ass.