John looked at the vials. He had to see if he could get this Amy to know what was wrong, or maybe even find his real sister. Having her older wasn't helping either. Looking at the vials he found one that said Faun and another that said age regression, one sip per year.
"These will have to work," He thought. Mentally he calculated that the new Amy needed to drink about half the vial to become about his age. Pouring the vials into a bottle of soda, he offered it to his new "sister". "Here Amy, try this out!"
Amy gladly took it and drank it down. "Thanks lil bro," She said.
John waited with baited breath as....