Jon stared out his window, waiting to see what color the sky would change to, so that he could get this experiment rolling. And after a few seconds, he watched as it became a brilliant orange color. From reading the Charlie story, he knew what that meant: gender change.
Immediately, he felt the changes occurring to his body. His body lost its masculine frame and became much curvier and softer. His hair became shoulder-length and curly. And as he felt his sex organs changing into a vagina, he watched as his shirt became filled with a new pair of breasts.
But his body wasn't the only thing that changed. His outfit changed into its female counterpart - a tight T-shirt and a pair of hip-hugging jeans. And his bedroom changed until it looked like a girl lived there. Which, now, was true.
Everything had changed so that Jon had always been a girl.
Jon turned and looked out the window, just in time to see the sky return to its normal color.