A dark moonless night Ken's horse master stood uneasy and unfolded his big cock. The master above heard movement of someone coming into the barn.
As Ken's body swung free he also kept watch for trouble.
"Whoa, big feela as a teenage boy stroked the mane and neck of the master." The touch of the boy was reassuring to the horse. He moved ever closer to Ken's position. Hanging around Ken's ears and view were soon filled with the face and hands of the boy.
The boy applied some sweet cream to his hands and began to rub the horse cock body. The master above stretched his stance to enjoy the thrilling touch going on below. Ken blinked his eyes a in the orange light from a security light outside he saw the glitter of a thick silver chain.
At first Ken thought the boy was trying to eat his cock body as he was fitted into the boy's mouth. A tongue carressed the opening of his cock end and gave such strange delight that the horse master soon spewed a load of semen into the boy's throat.
Ken was surprised at the volume his horse master streamed into the boy's mouth. As the orgy continued Ken's eyes went wide open in glee. On the silver chair hung the silver medallion and it had the power to change Ken into a man.
The boy moaned and groaned with the delight of his full gut. "Oh he said, to feel the sexual touching that this cock feels! I wish to Hell I had a life of enjoying what this cock feels!"
In a second Ken was a teenager and had the rank taste in his mouth from sucking a horse cock. Looking, he found himself in the boy's body and saw the cock wiggle with glee.
"I thank you for placing me back into humanity. As you are now, I have been for uncounted months. Now as you asked can you feel what a horse cock learns to enjoy." Ken got to his young human feet, he was free to live as a human again.
As the stallion drew his glorious cock into the leathery sheath Ken walked out of the stable. "I'm me but I'm now him and I don't have his memories or knowledge of where I live, family, friends, nothing!"
Now dressed and looking every bit a teen age boy he walked out to the roadside wondering where to go. Walking the country road late at night several cars sped past till one pulled close. "Hey Randy do you plan to walk home or would you like a ride, yelled a pretty girl?"