Jon tried to grab the wand back, but ended up getting touched by the sparkly silver star part of the wand. "Oh no," he uttered, before he felt himself changing.
Zoe's eyes went wide, as she watched Jon become a girl! His face kind of looked the same, but feminized. The rest of him? Definitely different. C-cup breasts, a bubble butt, wide hips, narrow waist, nice hairless legs, and long brown hair. Even his clothing changed, becoming a light blue halter top and denim miniskirt. On his feet, he wore 2-inch heels.
"What's wrong? Did something happen?" the new female Jon asked, in her alto voice.
"Jon, you're a girl!" Zoe nearly shouted, in shock.
"Why are you calling me 'Jon'? My name is Jen. And of course I'm a girl. What else would I be?"
Zoe's eyes went wider, if that was possible. Her brother thought that he was supposed to be a girl!
It seemed that the wand did one specific thing, dependent on the person who held the wand. When Jon held the wand and used it, whoever the wand touched, it would replace their personality and lifestyle with another close-by person's personality and lifestyle, removing it from that other person. When Zoe held the wand and used it, whoever the wand touched would become a female version of themselves. Of course, if the person was already female, then it had no effect on them. Or would it? Perhaps her use of the wand also turned females into males. Only one way to find out. She'd have to touch a female with the wand. Jon was female now, but maybe it wouldn't work on him, since he was only a female because of the wand. But who knew?