It was a quick walk to the fifth challenge.
It was a walk in silence, with only a quick acknowledgement of the changing scenery from the slime coated walls of the fourth, to tiled flooring and smooth stone walls. Both Hannah and Amanda both knew they were reaching the end, and that time was running out. Four challenge rooms gone, and four of their friends lost.
Hannah did her very best to avoid thinking about what it could be. The dampness in her crotch had little to do with the slime bath previous and everything to do with her excited thoughts running rampant over what dastardly trap they would face next.
And shame of knowing what her friends would think of her if she fell for it.
The challenge room was shaped like a very sharp V, with two paths to the left and right, squeezing a triangle between them. The two corridors were separated from the exit by thick glass walls from ceiling to floor, like the foyer of a skyscraper.
At the far end of each corridor there were two doors leading into the triangle, and a shiny black sheet with the words; 'Stand with your back against this wall.'
Two messages, two participants. A game of simon says, but with what stakes?
Hannah stepped down one of the corridors, and was almost instantly locked in by another black sheet of shiny fabric that flipped down from the ceiling, a sheet of latex or something. With no way back, she'd been trapped into the corridor and out of sight from Amanda, still waiting at the entrance.
Then the latex began to advance toward her, a frame around the edge keeping it flush with the walls, ceiling, and floor.
"Hannah!?"
"Don't come through!" she yelled as she sprinted for the door, already knowing it was locked.
She knew what she really needed to do. She stepped up to the wall and put her back to it.
Instantly, the wall of latex halted, about halfway down the corridor, and remained there.
"Hannah?"
"I'm standing against the wall like the sign said."
"What about the door?"
"Its locked."
She knew what they needed to do.
"Amanda, you need to do the same thing on the other side."
"...Are you sure?"
"We're going to have to do what it says to get through."
"What if we don't?"
The moment the words reached her ears, the latex began moving once again, advancing inexorably towards the wall Hannah was cowering against.
"Fine," Amanda sprinted into view beyond the glass, another latex sheet lowering to block her escape, and flattened herself against the wall like Hannah was. "Now let us through!"
For a moment both walls halted, then began to retreat back to their starting positions.
Then, a foot or so in front of them, a screen dropped from the ceiling, and displayed a message.
'Perform ten jumping jacks.'
The black latex advanced towards them.
It was not as easy as it usually would have, with the two of them in high heeled boots, and the slime still left inside Hannah's suit sloshing around, but they both quickly completed them.
Amanda was first, and after she had done so her wall came to a stop. Only when Hannah had completed her own, wincing at the pain in her feet, did they both withdraw fully to the far end.
The display went black for a moment, before lighting up again.
'Pat your head and rub your belly at the same time.'
The both did so, and again the walls reset.
'Count to one hundred.'
They did, very quickly.
They needed to follow the instruction, the wall advancing was the time limit, when one of them completed it, their wall stopped, when they both completed it, the walls reset.
But what if they didn't?
'Strip to your waist.'
Here we go, Hannah thought, the sexual tasks that she'd known were coming. She quickly unzipped her suit to her waist and began to shrug it off. It clung to her now, not like a form fitting dress, but like a wet shirt. Sticky strands of fake cum strung between her silky pale flesh and the black skintight suit.
She peeled it off herself sensually, knowing that they must be being filmed right now. She'd been waiting for this, an opportunity to show off.
She was so grateful for her fashion choice now. To imagine that she'd been thinking she was too sweaty this morning? She was caked in fake cum now, and it dribbled down her cleavage. Further down she was as wet as a whistle, and with her cunt hidden by less than an inch of fabric, she knew she wouldn't be able to hide it for long. But while she'd been enjoying her striptease, Amanda was prudishly refusing to remove her own clothes.
Hannah bit back a retort about how showing a little flesh was the least she could do for their gracious hosts, instead she went with a far more meek, "Amanda, we've got no choice."
Wrong words. Amanda instead tried to overwhelm the latex wall, and while it flexed and folded around her blows, there was no sign of it tearing or breaking, and it never stopped advancing.