"Actually" Jenn said. "Make it three hours. When I was a little kid I was kind of a tomboy--ran around and played baseball and football with the guys. But being a girl always made me a little bit of an outsider. I want to be a strong, active eight-year-old boy. I saw some kids playing football out by the playground. I want to be one of them."
Jeff and Jack exchanged glances. "We've got some of Jeff's old clothes you could wear."
"Cool!" said Jenn. Jack set up the Chronivac, then turned it on Jenn. She shrank, the outline of her body straightened, and her clothes began to collapse around her. Jeff had already gone up the attic to get some clothes. The new little boy laughed in delight. "This is going to be so cool! Can I use your bathroom?"
"Sure" said Jack. When Jenn returned from the bathroom he was grinning from ear to ear. "Standing to pee is so great!" He put on the clothes that Jeff had brought. "See you in about three hours!" He dashed off.