After an hour Mary decided to let the mail man go as she birthed him, but he didn't come out as an adult again, he was now a kid of eight and seemed to enjoy it now that he was nude (his clothes were destroyed when he walked into mary).
"Hey, my name's marty, thanks for letting me have my childhood back, a nasty old man turned me into a stuffy old grown-up." The boy said as Mary used her air control to return to a normal size for the boy.
"No problem, say would you like to become part balloon like me?" Mary asked the child.
"Of course i would, then i'd get to do some really cool things!" Marty exclaimed.
"Great!" Mary shouts. "In order for it to work though, you'll need to...."