She uses it on her swimsuit.

She grabbed a few Upgraders and click-clacked her way to the bench, breathing rapidly.

"Now, how do I use them? They won't fit in the keyhole."

The girl noticed that the front end of the cylinder was flexible and figured that she could apply it to any part of her outfit. With that in mind, while still clueless on how it worked, she took one of the Upgraders and pushed it against her trapped crotch.

A green rectangle started glowing on the side of the device, and it started pumping the substance into the steel plate. When it became empty, it fell off on its own.

At first, Jen did not notice it doing anything and just thought it was weird that something could be injected into solid steel. However, her impatience was so strong that she grabbed the rest of the Upgraders and applied them in the same area, hoping it would be more effective that way.

As Jen watched all of them easily stick to the surface and emptying themselves, she felt something happening to her swimsuit. Her hoping smile switched to a grimace of confusion as she watched her swimsuit starting to transform on her!

Firstly, it got tighter. It was already very snug, but she felt the steel shrinking, pushing harder against her crotch, upper hips and waist. She squealed as she felt her dildo going even deeper inside due to the pressure.

At the same time, steel started running down her hips, forming an attached pair of shorts. It **** Jen's legs into a straight position, so she stood up, still not understanding what's going on. In addition, she found a second keyhole appearing nearby from where she placed the first Upgrader.

"Upgrader... It upgrades things. It made the suit bigger and added one more keyhole to it! But... but it also made me feel something down there..."

"Don't worry yet. That was just the first one. You're yet to test the other six you used SIMULTANEOUSLY after it."

"WHAT-"

In a couple seconds, the swimsuit was in motion again, but was six times more aggressive this time! Jen felt the air squeezed out of her as the smooth steel was squishing her waist to impossible 18 inches! Her breast cups grabbed her nipples from the inside and started to tease them with ever-increasing strength. The crotch plate grew even tighter, granting the faint feeling of flying, while fusing with the dildo it was pushing, enhancing it as well. It became harder and even bigger and started vibrating on its own. The intensity was rising rapidly, and Jen struggled to catch any tiny breath she still had room for.

"I might have done something irreversibly wrong... but it feels too good to regret it." — the girl said and let go of her regrets forever.

Steel continued running down her legs and right to the floor, forming elegant steel boots around her white shoes, sealing them under the layer of metal for good. When legs were complete, it started to creep upwards. The shoulder straps flowed down her arms and up her neck.

By that time Jen was already screaming from the sexual pleasure that was only getting bigger with the efforts in her stuffed vagina and erect nipples. She was having orgasm after orgasm after orgasm until she blacked out completely.

***

When she woke up, she could not see anything. The steel cocoon now enveloped each molecule of her body, and she could not even move a single finger or turn her head. Yet the only question she asked was:

"Buzzies?"

And it started all over again. Terrible forces attacked her nipples and her vagina, and there were more screams. Jen did not care where she was or if there was any way out of here.

"Reduced to orgasm machine. Very good. She shall give me a lot of the energy I need."

ENDING #25