She keeps the mistress image on.

"Put this on." — Beth handed her the golden belt that lied in the same place as then. — "You proved to me that I can't trust your words. From now on, you will only cum if I decide you deserve it."

Amy took the cruel device with both hands and inspected the embedded vibrators. She still appeared both fearful and excited.

"I'm the type that would give up one of my kind to test this mall's evacuation system, she's the type to get under control and go with anything I say. She was sent to me so I could do this. I'm almost worried if I am predictable enough to get myself trapped somehow. No idea what's next yet, but might as well finish what I started."

Amy was already thighs deep into the belt under Beth's strict watch. The more **** and hesitant she was, the more she loved it. Shoving the vibrators into her natural orifices while opened for observation was a bliss, and the physical stimulation has not even started yet.

Beth acted like she was the only one in control of the belt, but she knew that it was the mysterious spectator that set this spectacle up. She threw a glance towards one of the top corners to give him a hint.

"Almost there. We'll need to wait until she's ready to go. Not right away."

'Clang!'

"'Do you like the belt, ****?"

"Yes, mistress! I can't wait to get it turned on!"

"Yes you can. Now get onto the shelf. I'll help you up."

Beth allowed one of the gorgeous flower-decorated platform boots to step into her palms to get the handcuffed girl into the shelf.

"It's gonna take you to the next stop. I'll be waiting for you there." — she kissed Amy in her forehead and rolled down the lid.

The first part was only her assumption, while the other was just a lie. Beth hopped to the other side of the row and watched. To her actual delight, the shelf soon started descending into the floor, proving her right.

"So, these are inserted into the hall from down there, like rods in a Soviet nuclear plant. This way, the shaft remains hollow all the way down, devoid of any mechanical support along the sides, because it's all the way down there, leaving me no clue until I see it in action. Mechanically simple, needs insane amount of space, but apparently this is not a problem."

Beth carefully approached the empty shaft and looked inside while holding onto the adjacent shelf. Some distant mechanical rumbling could be heard from below, but the immediate sight was limited to a couple of rails and some joints on the bottom end of the shaft.

"Wow. I don't regret feeding a human to this behemoth at all. I wonder if I can explore the whole thing."

Beth stepped away from the hole and realized that she was now standing on a thick, warm rug that was not there before. The girl quickly turned around and saw a man in a brown jacket and darker brown trousers. Deep moustache was the most pronounced feature of his face, with the next one being his eyes. They were emitting tranquility, so she thought:

"That's him."

"Hello. Nice rug." — she said and only then checked it out. The rug was dark blue, which was one of Beth's favored colors. That made her assume that he came with good intentions.

"Thanks. I want to talk to you, Beth Esveld."

"Apparently, this is my full name. Very well, let's talk to the big guy, it seems that he knows a lot." — Beth thought and smiled towards the man, well aware that he might be listening.