Anna is a young girl, she loved taking long walks in forests and other rural places, she always had a wish to be born into a farm, near a forest, where she could be one with nature herself.
She currently is a student at a very rich school studying Biology and Anatomy, she's one of the tallest students in her class and is a very bright one.
Today, she decided to go visit the farm her grandparents had but abandoned.
"Oh i can't wait!" she said to herself as she was slowly getting more and more excited.
When she arrived she saw that everything was almost the same, she saw the barn where the horses of her grandparents were grown into, the field where the cows and bulls would eat the grass from and even the old house of her parents!
She was so happy and luckly she found the old keys of the house, she slowly went towards the house and opened it and as expected, the entire place was dusty.
After a few minutes she cleaned up the whole house and decided to explore more around the old farm.
She decided to go see the field, but there was nothing but the tall grass being blown by the wind.
Then she decided to check the barn and saw with her own eyes something she didn't think she would find, it was Mare, perfectly healthy eating the same grass she saw on the field.
"Did she just stay here all of these years alone?" said Anna slowly walking towards the mare, "You poor little thing..."
She slowly began caressing the mane of the mare, which was a beautiful cookie brown color, she always had an affection with horses; their beautiful manes, their speed and their strenght. But then out of a sudden she bit her!
"OW! What was that for?!" She quickly looked at her arm, which slowly began losing blood.
She remembered that she saw a first aid kit in the house of her grandparents, she runned all the way to the house and slowly cleaned the bite with water and slowly began bandaging it.
"Hah, there we go." said Anna, after taking care of her wound she started asking herself why the horse would bit her, was she feeling threatend? Was she in a bad mood?
She decided to check the mare again, and saw that the sun was setting.
After reaching the barn she saw that the mare was gone! She looked around endlessly and didn't see it.
She decided to check outside but saw that i was already night time, she kept looking around for the mare and eventually ran to the fields.
She slowly became tired and decided to lay down for a second, looking up at the sky.
She saw how beautiful the starts were in the dark blue sky and then saw that there was a full moon, as she looked at the moon she felt transfixed to it, she couldn't look at any other direction, eventually she snapped out of it.
"....I should get some sleep." she said to herself, slowly getting up and reaching the house but as she took her first 3 steps her stomach began burning.
"Hng, my stomach it.... It hurts!" She said and held her stomach, eventually it stopped hurting, but she felt something, This time on her hand that was bitten by the mare.
She slowly raised it to take a look at it and saw that it was growing muscle and that her nails slowly turned into a black color, resembling the color of a horses hoof!
"What the-" As she was about to finish her sentance the bandages got destroyed and her arm was completly healed and saw that fur was slowly covering it.
"WHAT THE HELL?!" She shouted, eventually her other arm also grew in muscles and began changing, without the fur she looked like an expert body builder.
The changes went further on, this time to her chest, she felt her abdominal muscles grow, she quickly ripped her shirt and saw that she had a 6 pack! The fur from her arms slowly reached her chest slowly changing it, but something was wrong.
With each beat of her heart, her breasts started shrinking! She had medium sized breasts, then they slowly deflated like a football and she had nothing but hard pecs covered in the same white fur.
"Wait... Where are my breasts?!" She started panicking but then she looked at her shoes that were slowly ripping, revealing a pair of horse hoofs! She saw that her leg muscles were slowly building up and that the changes reached her mid section.
"What the hell is happ- OH~!"as Anna was about to finish her sentence she felt a tail slowly pushing out of her skirt, eventually destroying it, then she felt a sudden heat coming from her genital area, she looked and saw that a bulge was forming in her underwear!
"No..Hng please don't tell me that it's a-" As she was about to finish her sentance she saw the bulge grow and grow, eventually destroying her underwear, she saw a huge erect male member staring back at her.
She felt like she wanted to cry, why was this happening to her? But when she was about to tear up she felt a foreign sensation she never felt before.
She felt aroused, the looked at her new foreign organ and decided to touch it, a moan escaping from her lips.
"Oh... So sensitive..." She said and without hesitation she slowly began pleasing herself.
"Hng...Oh! That feels so good!" She slowly began pleasing herself more and more, eventually speeding up while the changes have accelerated.
"Yes! YES! CHANGE ME MORE! MAKE ME INTO A STALLION!" She (now He.) shouted, now with a more masculine voice, the changes kept going on and on, the changes accelerated, his member was covered in the same fur He was covered in, and the muscles becoming more and more powerful, the changes were about to reach her head.
His hair slowly began turning white and becoming longer, his ears grew into the ones of a proud stallion, he closed his eyes in anticipation as his face slowly began pushing into a snout.
"I-I'm going to c- NEEEEEIGHHHHH!!!!!!!!!!!!" He threw his head back roaring in triump as his member shot his seed everywhere around the field.
"NEEEEEEIIIIIGHHHHHH!!!!!!" He roared again this time facing the moon, there he was, once a innocent girl now turned into a proud alpha white werestallion.
He looked around himself and inspected his new body.
"Ohoho, look at this! I'm like a girls best dream!" He started flexing and started running around the field free from his humanity.
Then he looked around once more and...