Chloe looks right down the sights of the gun foolishly pulls the trigger. Causing the cheap looking gun to fire a pink light into her face, this time John notices the light is brighter than before. He decides it must be a higher level, that can't be good.
Chloe drops the gun with a stunned look on her face. John catches it before it hits the floor before looking back up at Chloe. Just in a few seconds he can already tell a difference, for one her hair has grown out, now down at neck level, looking messy. Her face has changed more, looking softer and more symmetrical, with slightly puffier lips and longer eyelashes.
Before he can look at the rest of the changes he opens the front door and runs out of the house. "Better leave before Chloe kills me." He thinks.
After jogging to the corner a few houses away he decides he's far enough away and slows down, he looks down at the gun and sees it's set at a level 2. "At least she didn't hit herself with anything higher."
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A few hours later it's starting to get dark, John had sat down at a park and was looking at the gun, he had figured out that there apparently is no way to reverse the changes with this gun, but if he goes back to the shop he got it from they should have another one that will, apparently this is a prototype.
He decides he'll try to go back to the shop tomorrow. For now he'll just start heading back home, everyone should be home by now and are probably furious with him.