Jeff/Jenny was in the play pen trying to think of what to do when she heard her father come home.
Her mother and father began talking about the device and then they came into the room she was in so her mother could show her father the device.
After talking about the device for a bit her father said "well let's try and find out what it actually does then" as he starts to play with the buttons before he hits enter.
Jenny felt a tingle go through her body almost immediately as she started to grow up very fast.
In no time at all Jenny was turned into a rather good looking naked teen girl as her dipper had popped off while she grew.
"OH MY" her mother said as she saw the changes made to what she thought was her daughter "WHAT DID THAT THING DO."
Both her parents looked at her in shock for a second before her mother said "WHAT EVER YOU DID CHANGE HER BACK, FOR GODS SAKE."
Jenny was able to get out a "NO, PLEASE" as she started to explain what had happened.