Marisol pulled her arm back into the box as Robyn watched, a little surprised. "Okay, ready! Turn the wheels a few more clicks."
Robyn turned the wheels, and the box compressed a little smaller before she heard Marisol again- "Eep!"
"What?!"
"Oh, just a pinch. Wait a moment." There was some rustling from in the box, and the lid popped open enough for Marisol to slide her fingers out, along with...
"Forgot I was wearing an underwire bra, and it was starting to pinch." The garment slipped to the floor. "No problem now! Turn it tighter."
Robyn turned it a few more clicks, watching the box get even smaller. She wondered how Marisol was positioning herself inside. Anything she could imagine seemed like it would be pretty uncomfortable. She paused and listened, and heard a short grunt- "Mhm. Robyn, I need your hand, please?"
"Mari, are you okay?"
"Yes, but I can only move a little bit." The lid creaked open, barely. "Can you reach in here?"
Robyn walked around to the front of the table, and, hesitantly, put her fingers inside the opening. She really couldn't see much inside- it was pretty dark.
"Don't worry, reach in further." Robyn slowly pushed her hand in, and felt Mari's warm skin on hers. "Watch the fingernails, Robyn! Hehe! Okay, grab this, and pull?" Robyn felt something smooth and lacy. She pulled, and was barely surprised to find Marisol's panties in her hand.
She smirked. "Are you having fun, Marisol?"
"Oooooh, yes." The lid clicked shut. "Give me one moment..."
"Why?"
"When this gets tighter, I'm really not going to be able to move much." Robyn heard some grunts of effort. "Before then- mhm- I want to- mhm- fingers..."
"Err?"
Robyn heard Mari's grin, even though she couldn't see it."Aaaaaah! There! Robyn?"
"Umm, yes?"
"I'm horny as fuck. Turn that crank now, and don't you dare stop till I tell you to."