The door opened and Katie walked in.
"Declan, I forgot to bring my... What the heck?" she said as she noticed him shrinking and becoming more feminine right before her eyes.
"Wait, Katie," he said in a noticibly higher voice. "I can explain."
"You look like you're turning into a girl," she said, stating the obvious. Then, she recognized the girl. "You... you're turning into... me?"
At that point, Declan and his sister were eye to eye. They were nearly identical, except that Declan still wore his too large male clothes.
His sister was 9 years old, but he guessed that the panties he had used with the medallion were several years old now, which meant that the change wasn't going to stop yet. Indeed, it didn't. Seconds later, he was looking up at his younger sister. And, then the changes stopped.
"You look like me when I was 6," said Katie.
Declan lifted up her hands. ("Her hands" as "he" no longer applied to Declan.) They seemed so small and delicate now. She touched her face with them, and felt her soft round cheeks and tiny little nose.
"It really worked," Declan said with the voice of a young girl, feeling too amazed to even notice her sister right then. It was a dream come true. She was actually a real little girl!
"What worked?" demanded Katie. "What's going on here?"
"Well," said Declan, suddenly pulled back to the reality of her situation. Her little sister Katie was now comparatively much older than her. She couldn't stop her if Katie decided to run out of the room then. She had to think of the right way of explaining this so as not to freak out Katie anymore than she already was. "You see, I found this magic medallion that lets me transform into other people using their clothes."
"And you decided to change into me?" said Katie, rasing an eyebrow.
"Uh, yeah, kinda."
"Why?" said Katie. She sounded more surprised than weirded out. "I mean, so you could be anybody. Why me?"
"Well, uh..." stammered Declan. How could she explain being a sissy to a 9-year-old? "I just... thought it would be really different."
Katie seemed unconvinced. "Maybe I should tell Mom," she said. "This is really weird."
"Wait!" Declan said. "Don't! You can't tell anyone about this."
"Why not?"
"Well..." Declan had to think fast or else her cover would be blown for sure. "If you tell... then you don't get to try it for yourself."
"Really?" said Katie. Her eyes brightened at the idea of using the medallion.
"Sure," said Declan. Of course, she really didn't want Katie to use the medallion, but it was better for Katie to use it than to let herself be exposed. Declan handed the medallion to Katie.
"You just touch the medallion to some clothes and then you turn into whoever wore the clothes last," Declan explained.
"Okay," said Katie. She stood and thought a moment. Then, she appeared to come to a decision. "I'm going to go grab something," she said and ran off out of Declan's room. Declan waited nervously for a minute for Katie to return.
"Found it!" declared Katie as she reentered the room. "I'll use this."
She held up...