Jon sighed. This isn't what he wanted, but with the lost power of the stone... It was either this, or nothing, and he was greedy for magic. Besides, he was confident he'd be able to find a way to undo it. He held the first stone up to his chest, wondering how just one would change him. It sank into his body while creating a blinding flash, similar to the stone. Jon certainly felt different, and hurried to the bathroom to check out how he looked.
He was... androgynous. His face had rounded out, and wouldn't look too out of place on a girl his age. He had lost a couple of inches of height, his hair had become shaggier, and he lost a bit of his excess fat. Out of curiosity, he reached into his pants, and found his manhood still intact... but far smaller than before. Overall, he was still definitely a man, but could easily be mistaken for a woman by someone who didn't know better. But it was time to move on. Jon repeated the process with the second stone, and took another look in the mirror.
She was now a fairly average looking teenage girl, maybe a little on the short and mousy side but nothing outrageous. Two orbs of femininity just turns men into women, it doesn't give super-feminize them. Her face was pretty similar to the way it looked in her intermediate stage, but her newly shoulder length hair accentuated it and made it look more feminine than androgynous. Her breasts... well, those were new, and Jon didn't know what to make of them. They were pretty small, either A-cup or small B-cup, but even that was way more than Jon was used to. Yet she didn't really feel an urge to check them out. The previously masculine Jon would've been very excited to get an opportunity to see boobs up close, even in such a weird situation, but Jon's new body was definitely hetero. She was wearing a sensible green top and jeans and a very light layer of makeup. All in all, she looked a lot like what her little sister Zoe would look like if Zoe didn't wear her ridiculous goth getup.
And now it was time for Jon to make a move. She wanted more magic. Being a woman felt natural now, she didn't feel much of an urge to change back to her old self. But so what? She had a taste of magic, she knew there were other magical items out there, and she wanted them, more than she had ever wanted anything in her life.