"You know, Emma - not everyone can be as blessed as you. I don't know how you can even contain that horse's ass of yours in a pair of pants. It's so big."
The brunette started to mutter something quietly while Emma turned and spoke to her.
"Kelly, you really need to check yourself. If you can't hold onto your man, I can't be blamed if he wants my huge...."
She stopped talking, her attention drawn to her ass. It felt like it was...
No, it can't be... is it... growing? Emma thought.
She felt her pants get even tighter. The fabric of her jeans could barely contain her. In addition to the strange sensation of swelling, there was a small pain around her tailbone.
Emma watched Kelly continue chanting something like a freak.
"What the hell are you doing, Kelly ... *unnnnhhh* ... what are you ... doing to me?"
Kelly grinned and continued to chant, watching with glee as Emma's pants ripped into shreds, her voluptuous ass spilling out with a jiggle. Emma pulled down her panties before they got stuck on her. And as she got them to her ankles she felt something tickle her arm. It was her...
"Tail?!?"
Emma grabbed it and pulled. It yanked at the base of her spine above her ass. She tried not to yelp in pain. Her ass was still getting bigger. It really was starting to resemble a horse's ass in size now!