"No, just no." Lisa said as Keiko put on the jeans and shirt.
The now seventeen year old teen had decided to go with a quick increase of age to just a bit older than Lisa. Lisa didn't mind that all that much but it was what Keiko wanted to do next.
"Look, I know you have a rough time with the Watch. But now that we have the Reset Watch, we can do all sorts of younger ages. And I found there was no consequences in my tests. It was like everything that was foggy to me went right back to normal."
"I just got back to my right age and you want me to not only be a child again but a young one."
Keiko placed one hand on Lisa's arm. "You need this so you can see this can be fun as well as scary. And with babysitter Keiko on the case, you can simply be a child."
"A toddler." Lisa grumped.
"Well technically. . ." Keiko grinned as Lisa glared for a moment. "And you'll only be in Akane's age group for only be for a few hours before the Reset Watch works for you again."
"But why did you get - "
Keiko held up the sundress. "Your Mom's sundress. It was really neat to go from having fitting clothes to way oversized and maybe you want to try it too."
Lisa closed her eyes and thought about it for a moment. "Okay, hand me the sundress." She went into the bathroom and changed. A few minutes later, she was wearing the blue sundress that was snug on her and a pair of strappy sandals.
Lisa decided to strike a pose in front of the mirror. "Do it before I change my mind."
And Keiko did so.
The months rapidly fell off of Lisa as her sixteenth birthday came and went. In moments the sundress went from snug to loose. She saw her face start to round a bit more from (im)maturity. as she lost her teen years.
Fourteen year old Lisa noticed that Keiko was her height, no make that a bit taller as months continued to drop. Her breasts were shrinking rapidly to nothingness as she passed fourteen and flew through her thirteenth year. The sundress was very loose on her slendering shoulders and shrinking bust while getting longer in the leg area.
Lisa looked at herself as she offically became a pre-teen. What remained of her breasts were almost . . no they were gone. She was now officially a child with no visable maturity.
Years dropped as she went through middle school and then elementary. Single digits of her life were now in her looks and she saw for a brief moment the same face she had as an eight year old for a time until that was something to look forward to.
She tried not to cry as she finished going through the first of her school years and she was startled how big things were becoming. Keiko now looked like an amazon who was looming of her but was gently holding her hand. The room seemed to be expanding around her and the sundress would've been long even for a full length dress.
Then a few moments later, Keiko stopped the Watch. At three years and two months she still had her toddler features. With almost no motion, the sundress fell off Lisa and she saw the panties had become a diaper.
"Now what should we do."