Thrilled

"Holy shit!! I have tits!" she exclaims "Look at the size of these things, they are bigger than my head"

She hefts her now enormous breast staring at them in awe.

"Uhn, they're really sensitive too" she continues "Not that I ever had a problem with my perky Bs but I always kind of wondered what it would be like to have proper knockers, you know?"

You nod, dumbstruck both by her huge new assets and by her reaction to them. She pushes past you and walks into the bathroom to check herself out in the mirror. You stare at her and at the toy gun in your hand while she chatters about how jealous her friends will be and how she is going to be the queen of senior year.

Eventually, she calms down enough to start asking questions and you explain how you came to possess such a fantastic device. The little you know anyway.

Curious she plucks it from your hand while you struggle to tear your eyes away from her mountainous cleavage.

"Magic ray gun, cool." she says as is that's normal "So the question is, who do we zap next?"