The next day in English class, John got there early to find that Sally was the only one there. She was showing him hre grades when he said to her, "you know what would make you perfect?" and pulled the trigger on the emitter while it was pointed at her.
Her complexion changed from ghostly pale to a heathy golden, then her hair changed from brown to bright blonde. Her figure changed as well, until it was closer to perfect measurements than probably any teenage girl had every been.
Finally, her eyes took on a blank expression and went bright blue. In a few seconds, her skirt got shorter and the v-neck in her shirt became much lower.
She blinked then and seemed unaware of what transpired. "Like, Johnny, I feel totally funny, like, OMG, why aren't we making out?"
"I don't know," he answered and began sucking her face off.
Every once and a while John got the sense that Sally realized what happened to her. She'd ask him if she always acted this ditzy and he'd tell her of course, and that she's thinking to hard.
One day, she looked different. When before there was a hint of awareness in her eyes, this day she looked absolulely blank. The Chronivac had completely purged her old personality.
John noticed this, smiled, and made out with his girlfriend.