Jon wondered what it was like to be a girl. But to really be one, he couldn't just be thinking of himself as a boy in disguise....
First, the easy part. "I wish to be female until I wish to change back."
Second, the part that would show him what it was like. "I wish that for the next year the stone will vanish and neither Karyn nor I would remember the stone or my original sex, but after the year is over I'll have the stone back and we'll have our memories back.
Jon felt his body change, but soon he--now she--didn't even realize that anything was different. And since the stone changes reality, nobody else thought anything was different either. Her mother called. "Jonnie, it's time for dinner!"
And a year later, Jonnie woke up in the morning and remembered her own life as Jon.
Wow, In the past year she had...