While Drew didn't really notice Sue's C-cup breasts turn into an iron board he noticed his chest grow into C-cups and stretch out his shirt. Drew groped his new breasts and moaned a bit by the unfamiliar stimulation which were large on his little body.
Sue picked up the gun that Drew dropped to grope himself and shot him another time reversing the changes, and while readjusting her bra said "I don't mind us playing with the gun a bit but please don't think about the gun as a toy. Now how about before we do something else we take a look at some of the guns settings and play with it once mom and dad go to work?"
Drew said "That seems interesting. Let's do it then!"
The two of them checked the settings and a few of the options and then decided to.