All of a sudden, you're back to being a tiny man in Kristen's underwear drawer. Not a bad outcome: it would have been nice if Kristen had put you on while you were still a pair of panties, but now you know you can turn into inanimate objects and turn yourself back just by imagining yourself firing the gun. That's fine by you.
As you wait for Kristen to dress and get ready, you remain in the drawer, thinking about plan B. If things didn't work out with Kristen, there's no reason you can't try again with her friend Bethany next door. She might even be hotter than Kristen, and you'd enjoy the experience just as much. So that seems like a viable option too.
There's not a whole lot to do in Kristen's panty drawer while you wait. Fortunately, you can hear that she's still moving around her room, so you know not to do anything that would get her to notice you. Turning yourself into her panties is fun, but you have no interest in having Kristen find you snooping around there, especially as a shrunken man. A tiny bit of light comes in through the top of the drawer, so you can just barely see around. While Kristen wanders around her room, you wander around the drawer, looking at her panties and bras. Not that exciting after the exhilaration of turning into a pair of panties and having the giantess Kristen open the door, but you're not complaining.
Eventually you hear Kristen's door open and shut, and from there you don't hear any more sounds. It's only then that you realize you're not sure how exactly to get out. You decide to enlarge yourself up to about the height of the drawer, and then you body-check the front a few times. Eventually it slides open just enough for you to reach up and pull yourself out. As before, you enlarge yourself to a few feet and jump down. Standing by the dresser, you then shrink yourself back down to only a couple of inches in preparation for sneaking under the bedroom doors and into Bethany's room.