Annabelle gave a deep sigh as she peered into the grassy field through the wooden fence. She quickly saw her intended target: a lazy cow munching on grass. It was all alone, no one or nothing else was in sight. All she had to do was rush in and push it over.
Pranking the farmer was the only way that Annabelle could join the local adventuring club and her only way out of this small town. Besides, she was already in debt to the group for the leather armor they had given her and of which she was currently wearing around her slim form. If Annabelle didn't go through with this prank, paying off her debt was not going to be fun.
Looking around one last time to make sure that nobody was watching, Annabelle slipped through and quietly made her way over to the cow. When she got up to it, a grin played across her lips and she reached out with both hands to push it. The lazy cow didn't budge an inch and Annabelle groaned as she tried harder and harder to push it over. All to no avail.
That was when things went wrong. A beautiful lady clad in rather skimpy green clothes rose out of the ground and glared at Annabelle. "Young lady, you dare try and harm this innocent creature? You shall pay the consequences for your actions and live that life!"
Before Annabelle could so much as make a peep of protest, her world became dizzy and she spun on the spot. Her vision was flashing white and her ears were ringing. Annabelle was just about to lose her balance when she felt her body begin to shift about.
A rather intense, albeit painless, jolt ran through Annabelle's body and made her groan. It concentrated around her ears, pulling on them. They were getting longer with each passing second and Annabelle brought her hands up to grab them. That only made the tingling worse, as her long ears were now rather sensitive.
Annabelle moaned and shivered as the tingling worked its way down to her nose. By now, the spirit was gone, but that made it no less embarrassing as both her nose enlarged and stuck out farther than normal. Her nostrils tingled sensitively just like her ears.
As if out of some sort of new instinct, Annabelle let out a plaintive moo. She kept mooing, not knowing what else to do as the changes kept coursing through her body, now making her breasts burn slightly. They swelled up and Annabelle moaned out again.
In a futile effort to stop the changes, Annabelle groped and squeezed her breasts. She hoped that if she held them in place, they might stop growing. She was wrong. Pleasure coursed through her as she fondled her own chest and in no way did they stop growing.
Not even her tight, toned tummy was spared the changes. Like with her breasts, Annabell's middle started to balloon outwards and four nipples grew on the expanding paunch. The girl let out another loud moo, still too dizzy to do anything else, and as her udders formed, it was too heavy for her to do anything anyways.
When her belly was done growing, Annabelle felt that tingle continue downwards until it enveloped her rear and all of her legs. Her toes fused together into hooves and fur climbed up along her legs up to her ankles. A long tail sprouted from her backbone as well. Not used to hooves, Annabelle fell down to the ground on her butt with an "oof!" The tingling disappeared and she looked down at herself; what had been a human body was now some sort of human-cowgirl hybrid!
As if things weren't bad enough already, the farmer made his way over and stopped close to Annabelle, towering above her and casting quite the shadow. "Well, if it isn't a naughty, little cowgirl getting her just desserts for trying to push my cow over. Yeah, I'm mighty thankful for that nature spirit that lives here; takes care of naughty little things like you."
"Moo..." Annabelle said. She could still speak and even understand the farmer, but she was still too dazed to do anything else but make her new 'favorite' noise.
"That's right," the farmer said. "You'll fit in just fine around here, I think. Yeah, I got lots of plans for you, girl." He tossed a rope around her neck and tied it tight.
"But..." Annabelle tried to protest, but the farmer just dragged her off to the barn to get her started with her new life on the farm.