After she activated the Chronivac, Allison went back to the mirror in front of her dresser and placed her hands on her hips. “What did you do, Ally” Amy asked, unaware of what was about to happen.
“Just wait” Ally replied. She had set a ten second delay on her transformation. First her bra and panties started to feel tight. Then she noticed the entire room gradually becoming smaller. A look in the mirror confirmed that she was about six feet tall and still growing. Her lingerie tore off from her still growing body, leaving her completely naked. About fifteen seconds later she reached her target height of 7’4”, two feet above her original height. Her blonde hair brushed against the ceiling.
“Wow, Ally” Amy said in amazement to her much taller older sister. “You’re so big! How did you do that?”
“It’s the Chronivac” Ally pointed to the computer. “It can change anyone into anything. I programmed it to make me bigger.”
“Can it change you back?”
“Oh, yes” Ally replied. “I set it to return to my original size in thirty minutes.”
“Can I try it?” Amy asked.
“I guess so” Ally replied. As Amy sat on the chair in front of the computer, the Chronivac scanned her body. Ally kneeled down next to Amy. Even on her knees her eye level was above her little sister. Suddenly Ally remembered that just a few hours ago Amy was her daughter. In all of the excitement she had completely forgotten that. “So, sis, what do you want to do?”