Ms Stevens

Out of spite, she clicked on Ms Stevens' name.

She blushed as a naked, full-body picture of her appeared on her screen. She attempted to ignore the large, sagging boobs or her enormous, child-bearing hips, instead scrolling down to survey the options they had.

There were a few categories such as 'physical', 'mental' and 'reality'. Emily clicked on physical first, and was then presented with another list of choices, this one far longer, with a number of gems next to each choice. She decided to choose a cheap one first, though she wasn't quite sure what each one would do.

On a whim, she took one of the more expensive options: full antro. She had enough gems, after all, why not go big? She confirmed the purchase of 5 gems, and typed in an animal. "I mean, she was an absolute ass before, why give her a donkey?" she muttered, and pressed 'Go'.

Back on the naked picture, a change suddenly shuddered through her body, as it started to grow mousy brown fur all over. Her face began to distend outward into an equine visage, and her ears moved to the sides of her head. She kicked off her shoes as her feet became hooves, her legs widening to keep her balance. Finally, her ass grew so big that it peeked out from under her short pencil skirt, her puffy, brown anus very visible. Emily had to stifle a laugh at the unbelievable change your teacher just went through. She noticed, however, that no one else had reacted to the change. That realisation sent a giddy shiver through her.

If this is what the app did, she was so ready for more.