I am an apprentice of a powerful sorcerer. I am 15 years old. I was adopted by my master when my parents died of the great plague when I was five years old. Although I call him master he is more like a father. He has taught me Latin and Greek and the making of potion through alchemy and has promised to train me to use spells from his spell books when I am ready. But the books are forbidden locked away from my prying eyes. I have been given the job of tidying master's study. Then I notice on his desk a large black leather bound book it is one of the forbidden books. I cannot resist looking through. What harm can it do, on the cover is printed the words transformations. I slowly turn the pages covered with incantation that I do not understand. Suddenly I feel a hand on my shoulder:
"What do you think you are doing boy."
"Please sir didn't mean any harm."
"I have told you how dangerous these books are not for the untrained you must be punished."
"Please sir, do not beat me."
"When I have finished with you you'll wished for just a beating."
"Look in to my eyes, "Please sir."
As I was fixed by his emerald eyes my vision blurred my body felt like fluid flowing changing shape then my vision cleared.
I was still standing in the study faceing my master. Somehow the room looked different.
"Stay!" my master said. I could move my body but my feet felt rooted to the spot; a holding spell. He walked out of the room and returned a few minutes later holding a leather harness like one for a small horse. It was slid over my head fitting perfectly. "Come!"
I was lead to a full length mirror to my horror saw I was now a donkey.
"Like your new body boy? I have plans for it."
As I was lead out of the main house across the yard to a large barn next to the stables I was fearful of my master's plans. Once inside the barn he left and shut me in. After what seemed like an eternity the door opened in came master followed by four stable hands the first leading a donkey the same size as me the next a pony the third a full sized horse and the last a massive heavy cart horse all were stallions .
As the donkey was lead in front of me it started to dawn on me as to my fate. The stable hand stated to work on the donkeys cock. It was soon hard. Then he took a bucket of goose grease and coated the donkey cock with it. My master took a handful of the grease and greased my arsehole. I tried to run.
"Stay!" said master. Again the holding spell.
"I will not tell you to take you punishment like a man since you are no longer one but take it you will."
The donkey disappeared behind me. Then it was up on my back an its stiff prick slammed into my tight hole. I actually felt quite good being fucked by this Randy beast. Soon I could feel its thick cum pumping into me. I was enjoying it so much I had not noticed the pony was hard and well greased. The donkey cock slid out of my arse and before I had time to recover the pony's prick was rammed up me in its place. As the pony fucked me the horse was being made ready. The cock was stretching my arse but still felt quite good. I was soon being filled with pony cum. As soon as the now soft pony withdrew from me I could feel the cum dribbling from my rear. Next it was horse's turn. The huge cock forced its way into my arsehole stretching it more than I imagined possible. Now its was past being pleasurable. I hoped for it to be over quickly. Then I could feel the horses seed squirting deep into me, the cock slipped from my hole.
My punishment was still far from over. In front of me was the biggest horse I had ever seen. Its cock must have been two an a half feet long and as thick as a mans arm; rock hard and glistening with grease.
"Now' said master `you have a choice. If you do not want to be fucked by this fine beast all you have to do is say no."
I tried to speak, out, came a braying noise. I try to plead but just made more donkey noises.
"That does not sound like no to me. I will take that as a yes." said master
I braced my self as I felt the huge cock against my arse hole my hole resisted the stable hand took pity and smeared another hand full of grease over me I took a deep breath and tried to relax. Slowly my hole opened up and inch by painful inch in the member forced its way until it was up to its hilt. Then it withdrew about a foot and rammed back in. In spite of the feelings from my stretched tortured rear I was starting to get aroused and would soon come if the horse did not beat me to it as it fucked me harder and harder. Then it came spurting up me. This sent me over the top. As I watched the cum squirting from my own cock I though I would never stop. But I did as the horse now softer prick withdrew its seed poured from my rear. I had experienced what no other man or donkey had. Then my vision blurred again. I was back in the study facing master.
"It's alright boy you're still human; but if I ever catch you looking at the book again with out my permission I will turn you into a donkey. It can be done but it is very dangerous."
I could now feel I had a massive hard on and was wet with pre cum. As I looked down at it my master saw it. He grabbed hold of my dick and said:
"You like cock boy?"
"Yes sir."
"Down on your knees boy."
I did as I was told.
"Open your mouth boy.
As he drew apart his robe I saw his cock he was large but thankfully not hung like a horse.
THE END