Stuff them through!

The booth's four sides were nothing special. One side was occupied by a large and currently locked door that had a little window at the height of her head. The side opposite of the door had a little counter and a small, secured window above the counter that couldn't be opened. The side left of the door was made out of a metal structure consisting of roughly fist-sized, round tubes that were held in place by a mesh. Each tube was only an inch long and sealed with rubber caps on both sides. Amy had always wondered why that wall looked so strange and assumed Howie must have gotten those tubes for cheap somewhere.

The remaining side was transparent from top to bottom. The lower and upper parts were made out of cheap acrylic glass, scratched and worn down from the years. And then there was the window, a hands-width of actual glass that could be pushed up and locked in place for a bit of fresh air in case it wasn't boiling hot outside. The only issue was that the window was quite high up for Amy, right at the level of her nose. Amy wondered how the hell she would be able to stuff her tits through there.

"Eh... guys? I think there's a flaw in the plan!"

"Why?"

"Why? That window is not reachable for my boobies, that's why! And it's too small, too! Sorry, but I can't do it!"

"You're not pulling out so easily, sweet cheeks! Come on, show some improvisation skills! Or do you want to open that door instead and let us touch your ENTIRE body?"