A harness

"Oh cool; it's Eva's harness!" Crystal loudly proclaimed, pointing to the collection of buckles that now hung from the ceiling by an elastic cable.

"E.V.A. harness," corrected Kat.

"Yeah that's how her name is spelt," agreed Crystal, oblivious. "We must have read the same thing. It's like an extra vehicle to do activities in space. It's got booster packs and stuff," she recounted to the rest of the group.

"It doesn't look much like a space suit," commented Amy as she bubbly shuffled towards the new discovery as fast as her chains would let her. There were plastic boxes with built in LEDs that were probably the booster packs Crystal mentioned, but otherwise it was just straps and buckles.

"Silly ****," chided Toni, from right behind her before swatting Amy's bum. "It's just for exploring deep into the mines so we can get the ancient whatsitcalled to do the thingy or whatever. Haven't you been paying attention?"

"Oh." Amy shrugged. Now that the artificial smoke had cleared she saw a hatch had appeared in the floor surrounded on three sides by railings. It seemed their puzzle room had a basement. "Who's going to put it on? I guess Kat because it's her B-day."

"I'm not leaving the trajectory station," Kat responded flatly, still at the console and casting a wary eye to Crystal who had worked her way over to the birthday girl.

"I think everyone except Amy is going to have to stay up here and run the computers," stated Sarah, joining Toni and Amy at the harness.

"Hey, I've gotten pretty good at moving around in these chains," said Amy indignantly.

"Yes, you have," agreed Toni wrapping the loose harness around her roommate. "And I can't wait to see the flips you can do with this on." Amy was about to protest again, but Toni shushed her with a wave. "Oh come now, you've been letting us have all the fun now it's your turn."

Amy had though she'd been having lots of fun already, but there was only so many times you could refuse putting on a jetpack, even a pretend jetpack. She sighed and shrugged, stepping closer to Sarah who seemed about to buckle her up no matter what she said.

The magician was allowed to work for a few minutes before Amy protested anew. "Hey, shouldn't those go under my arms?" asked Amy as belts pinned her arms behind her back.

"Nope, not with your chains still on. Trust me I'm a theater student; I've set up a hundred harnesses like this."

"Does it have to be this tight?"

"Safety first," cheerfully countered Toni, helping Sarah from the opposite side. "Now let us do our job, cutie. Or do I have to gag you?"

That threat shut up Amy, not because she was afraid her roommate would actually gag her. But her mind was filled with thoughts of being gagged, of squirming helplessly as a wad was crammed into her mouth, followed by a securing sash. The thought made her shift nervously.

Her silence, however, only lasted until Sarah buckled a canvas strip between her legs. The wrapped student let out a startled "yeep" as the strap was tightened, getting flashbacks to the straitjacket challenge, except it was even tighter this time. The magician fiddled quite a bit with the intimate strap making it writhing and vibrate, and through her thin panties Amy felt every movement. "She's all locked up," Sarah finally said.

"Tight as a bug in a rug," agreed Toni.

"Yippee," cheered Crystal, "can I press the button to test it?"

The non-restrained women nodded their approval while Amy just looked bewildered out from her cocoon of safety straps. She received her explanation as the blonde pressed a button and all across Amy's new harness strips of light shown and the small boxes vibrated. It made her feel tingly all over even before her feet left the ground.

The cable above the harnessed student retracted, pulling her up which was quite startling especially because it seemed a fair amount of her weight rested the crotch part of her harness. Not enough to be painful, but enough to make for a very distracting sensation. It was only a brief burst into the air, after which Amy drifted slowly to the ground. She giggled excitedly, "it's pretty cool, I feel like I'm half floating."

"Yup, like you're on a planet or asteroid with low gravity," agreed Sarah, "now get into the mines."

Amy made an effort to, but her leg could only move an inch forward it was so tightly wrapped to the other. "You made the harness too tight," she protested again, "how am I supposed to get to the hatch?" She tried to wave in protest, but the harness had also pinned her arms to her back.

Toni smiled "Just hop silly."

Some silly hopping later and the bound student was slowly plunging into the basement. "That's one small step for me," she mumbled dramatically to herself when her feet touched the floor, "and one giant leap for Amy kind."

"Um, you know we can hear you, right?" crackled Sarah from a small speaker in her harness, prompting Amy to wish she could drop another ten feet so the ground could swallow her whole.

"That leap part is really poetic. Did you just make that up?" asked Crystal, probably unaware that anybody had actually walked on the Earth's green-cheese orbiter.

"Alright, Armstrong, what do you see?" asked Toni saving Amy.

"There's a tunnel, so I can only go one way. At the end, I see a door. I think it has writing on it; I'm gonna go check."

Amy started hopping forward, felling her half-naked breasts bounce in her bra. The tunnel was eerily lit, sending a playful chill up her spine. If this were a real space mine crawling with monsters she'd be totally helpless. Fighting wasn't an option unless she could somehow defend herself from an alien by sticking out her tongue and wiggling her fingers. She couldn't run away from this hypothetical space monster either; at best she could hop at half the speed of a regular person's walk. She'd just have to be sneaky, Amy told herself and focused on breathing quietly and tapping her toes against the stone as softly as possible.

A jarring mechanical clang caused her eyes to snap up. The noise was only the harness's weight-reducing cable transition to a track that ran along the top of the tunnel. Harmless though the sound was, it hobbled the bound student's pretend attempts to stealth through this mine. Amy realized she had no real control of her fate in her fantasy. It was... interesting to feel weak and at the whims of chance. Slowly, cautiously she padded forward her imagination filling her mind with terrifying monsters that she would be helpless against.

"Wait," warned Sarah through her speaker. "I'm seeing something about a lazer grid coming on line."

Amy halted and saw little holes in the wall that could be laser sensors. "What should I do?"

"I think you can jump over them," Toni suggested. "Its a bit far, but with the boosters, you should be good."

"Got it," Amy said while nodding confidently over the radio. "I'll get a running start and tell you when to trigger the boosters."

A running start may not have been entirely accurate, Amy realized as she bungee hopped a few feet back. But she managed get quite a bit of momentum going by leaning forward and bounding back to the laser grid with all her might. "Launch!" she yelled as she approached the first sensor and sprung off the ground with all her might.

Unfortunately, her pretend boosters were a little late coming on. Amy reached the apex of her jump after only traveling a few feet above the grid and then she started slowly falling into it. The student flailed and swung her bound legs to keep them from interrupting the lazers' path, but was getting close to the floor. When the assistance finally came, it didn't help much. The squirming student was caught off guard by the sudden surge of vibrating mechanisms and the increased tug (which was especially strong against her loins). She floundered, mewling delicately to herself, as she descended further. Distracted, she only barely noticed the irritated beep and accompanying red light as she passed into the alarmed area.

"Shoot," Amy muttered, before squirming back to an upright position an act that was much easier with the harness gently tugging her up.

"That's okay," said Toni. "Go a ways back and I'll reset the lock."

Crystal spoke next. "That's totally my fault, but could you, like, give me a count down next time?"

"Yeah," Amy nodded again, despite her friends still being unable to see her. She'd almost hopped to her starting position. "You got it." Reaching her desired distance, she began, "3..." Bouncing forward with rising speed and determination, she continued, "2..." A second away from her liftoff point and excitement rising, the bound young student called out, "1..."

Unfortunately, there was a slight miscommunication, and Crystal activated the lift mechanism when she heard 1. With a startled yelp, Amy again felt the vibrating harness writhe between her legs. It was all the more overpowering because she wasn't quite expecting it. Her yelp became a squeal; a trembling energy radiated throughout her body. Panting as the thrusters calmed down Amy shakily touched back down to the ground. Her breath came out in trembling pants, she'd all but forgotten how close she'd been to cumming earlier, and now the desire was coming back with vengeance.

"Okay," she started after she'd taken a few breaths to composed herself, "I'll say 3, 2, 1, launch." Her voice still had a quaver despite her attempts to control it. "Hit the boosters when I say launch."

"Oh," said Crystal innocently, "that's a fun way to do it. I'm totes there for you."

Amy sighed and shuffled back to her starting position.