"Hmph!" Charity scowled at her newly created sister. "Well if one wish isn't enough to humiliate you, I'll just have to make another. Then we'll see who the bimbo is."
Before Charity could react, Roderick spun around and pulled out her small sword, hitting the flat of it against Charity's hand. Charity cried in pain as her accursed rock was knocked from her hand and into the air.
Roderick lunged forward to get her hands on the rock. And though her new body's exaggerated proportions were throwing off her center of gravity somewhat, her years of combat training were more than enough to ensure that she snatched the magic stone from the air before Charity could retrieve it.
"You won't be making anymore of your foul wishes," Roderick hissed, pointing her sword at Charity to keep the older girl at bay.
"Well, at least I'll be happy knowing you're no longer heir," Charity smirked at her former brother. "I'm the eldest, so it looks like I'll be queen now."
Now it was Roderick's turn to smirk. "Unless I make a wish to fix this," she said as she squeezed the stone.
"Sorry sister," Charity said mockingly, "but wishes can't be undone. It said so in the letter that came with the stone. Hope you enjoy getting in touch with your feminine side."
Roderick was appalled, but she couldn't let Charity see that. She forced her lovely new face into an emotionless mask and thought on what to do. She had been prepared her whole life to be king. Charity was a selfish, spoiled fool who would never be a fit ruler. She did not care for the people of their kingdom, only herself. Roderick knew what she must do.
"I wish I was once again heir to the throne," she said as the stone grew warm in her hand.
Roderick may not have been sure what she was expecting, but it certainly wasn't the sudden tingling sensation throughout her body as her appearance changed even further. Her height increased ever so slightly while her face matured just enough to lose its last hint of childish roundness. Her curves, which were already the most excessively abundant Roderick had ever seen, were only enhancing themselves further into the realm of mens' fantasies. Her blonde mane grew even more, to the point that the only thing keeping it from brushing against the floor of Charity's bedchamber were the elegant heels now adorning Roderick's feet.
The tingling faded and it became clear how the former prince's wish had been granted. Whereas Roderick had once been a 16 year old lad and, temporarily, a 16 year old girl, she was now a young woman of 18. She was older than Charity, and therefore, once again the heir to the throne.
For a moment, both princesses stared in silent shock at Roderick's new form. Though Roderick had often thought of the buxom blonde Charity as a bimbo, her current form was far worse. Were it not for Roderick's keen, shrewd eyes, all who looked at the blonde caricature of femininity would likely think she was some sort of vacuous ditz best suited for serving as the arm candy of a handsome knight or king.
It was at this moment that Roderick found herself very thankful for Arthur's refreshingly liberal and mature mindset towards his preference in women's personalities, for his taste in their bodies was far more childish.