Obviously

"Yeah ! That sounds awesome !" Says Jacob.

"Any idea on what to do first ?"

"The old neighbor, she's a pain in the ass. She's constantly complaining about everything we do. We could give her her youth back... with extra !"

"That could be possible."

They goes out of the house and finds her walking her dog. It's a 50's years old woman, with gray hairs, big glasses and a plain brown dress. David and Jacob looks at the options of the device.

They'll obviously make her younger, but what could they do ?

Give her big udders

Give her a big fat ass

Give her a plump drooling pussy

Give her slutty clothes

Make her as flat as a cardboard

Or they also could give her a whole package, turning her into a bimbo.