As the movie ended, Lisa took a look at the sleeping Keiko who was all of four years old and smiled gently. She reached over to the blanket and pulled it over Keiko. It would be good enough for the night. She went to the bedroom and realized she hadn't washed her clothes and there was no nightclothes. Lisa frowned and went to get one of her father's big t-shirts, which would work for the night. She laid down and fell asleep on the bed with no sheets, with a light on so Keiko knew where she was.
A few hours later, Keiko awoke. Her childish instincts were set on mischief, and she quietly got up. The Age Regression Watch, that's fun. She snuck into the lighted area and found Lisa deep asleep. She looked at the Age Regression Watch, and focused to be able to read it.
With a flourish, she activated the Watch and watched as time ticked down on Lisa. 16 became 15 and then 14 as the t-shirt (already large on her) seemed to grow in size as she shrank.
Keiko muffled a giggle, went back into the living room, and gamely came back with the blanket. The little Asian girl saw Lisa was now before puberty and then into the single digits of life.
Soon, Lisa was younger than 8 and then 7. The Shirt was now practically covering her entire body and Keiko muffled another giggle. As Lisa became a kindergartener, Keiko focused and carefully slowed the Age Regression Watch. Keiko stopped the Watch for Lisa at Four Years, One Month or rather when Lisa seemed a bit smaller than Keiko.
Keiko crawled up onto the bed dragging the blanket, and got the blanket over the two. The bed, which would been tiny for two teenagers or just big enough for one teenager and one child, was now huge for both four year olds. Keiko Yawned, and after putting the Age Regression Watch on the nightstand, pulled the blanket over both of them. This blanket wouldn't have been big enough was huge for two four year olds.
Keiko quietly yawned and went back to sleep, snuggling with her friend Lisa.