“So,” Rainbow Dash started, “I had this subject in school, about survival.” Tight Fit waited. “And I think we should… uh… share body heat.”

“Alright.”

“Just ‘alright’?!” she bristled and scoffed. “Isn’t this weird to you or something?”

“Look, Dashie,” the unicorn muttered, “we’re dying of hypothermia, I think you’re pretty hot, so as far as I can tell, it’s win-win.”

Rainbow took a deep breath, thought of chiding him, and groaned instead. “Come here,” she muttered. “Just don’t make it weird.”

He shifted towards her, and planted one of the heated bags underneath them. She felt his hooves move around her, and hold her closer. “Excuse me…” a mutter in her ear that made her hair stand up for some stupid reason. She felt her legs get pushed apart by one of his, and the other wrap over that, until their lower appendages turned into a veritable twist roll. Meanwhile, his upper hoof held her close, chest to chest, while the other one supported under her neck. “Is this okay?”

“Mhm,” she mumbled into his chest. She felt his heart beating against her forehead. She returned his embrace, reaching her hoof over him and holding him tight. She tried to push her other underneath them, but he was just a touch too heavy.

“We might even get out of this alive,” he muttered.

“Maybe…” Rainbow replied. She still didn’t know what to do with her other hoof. She let it fall between the bodies and nudged something. He froze and she pulled back. “Sorry,” she muttered. “Was that your leg?”

“Uh—”

Rainbow realized, and took a sharp breath. There was something in the lectures about activities that made your heart race, she was pretty sure.

“Uh… You’re still…” the unicorn muttered.

“Y-yeah…?”

“Y-you know. Touching… uh…” his voice trailed off. He didn’t move away.

“Maybe?” She moved her hoof a bit, and smirked when he took a sharp breath. “Is that a problem?”

“Is this… is this in the survival manual?”

“Does it have to be?”

“...no?”

She moved her hoof again, and felt him tighten under her touch. She chuckled.

“Look, it’s mostly a panic reaction,” he assured her, his voice skipping.

“Mostly?”

He groaned, partly because she moved her hoof again. She quite liked the rings, ridges, and veins. And just feeling that pulsating thing grow under her touch, press against her… She shifted, and pushed it between their bodies. The unicorn sighed in relief, until she pressed her midsection against it, eliciting a gasp.

“Come on,” she whispered in his ear. “Don’t tell me this is just your body talking.”

“It is,” he stated firmly. “Me being turned on by you is a biological reaction. I mean, I do only barely know you, but—”

Rainbow's lips met his, and for a few seconds, she was trapped in a perfect moment. Under a blanket fort, with a throbbing dick pressing against her, a tongue exploring an eager mouth. When they parted, she sighed, and muttered: “Good enough for me.” Before he could say anything, she reached down again, and shifted her legs a bit. “Hmm…” Her wandering hoof slid across his side, his pelvis, between his legs—

Something grabbed her hoof. “H-hold on,” his hot breath caressed her ear. “This isn’t fair…”

“All’s fair in love and war,” she quoted.

“Oh yeah?” he asked, and suddenly, there was a pressure against her nethers. Rainbow gasped and bit her lip, and bucked towards his thigh. She felt herself slip unusually, and just a distant hint of the hardness she really wanted between her legs reached her. She groaned with disappointment.

“You left the suit on,” he realized. The pressure increased, and slid again.

She moaned.

“Fun…” he chuckled.

“Y-yeah?” she pressed against him, hard. She felt his member between their stomachs, and moved her hips side to side, grinding down. “How much fun is this?”

“A lot…” his voice rasped, and he moved against her again. She felt his hoof glide across her side, distant and desperate, and stop at her rear. He tried to grasp, but the material slipped from under his hoof.

Rainbow chuckled. “Better luck next time,” she moved forward, and nibbled his ear. “Gotta try a bit…” her breath was warm in his ear, “...harder…”

She could feel the heartbeats in his shaft, and herself grin ear to ear. A moment later, a pair of hooves grabbed her ass, and pulled her towards him. She moaned as he groped her cheeks, digging in furiously as she slid from underneath him. She wrapped her leg around him, and helped him, dragging ragged breaths out of him to match her own.

There was only so much she could take. She grabbed him, and kissed him again, deeply, shifting over him. He gasped and fell onto his back as she straddled him, sliding up to his chest. As her rump passed his tip, she slowed down, almost losing herself with each ring and bump.

“That stupid wriggle,” she gasped, “of the suit, yesterday…”

She stopped, moving down across him stroking him, arcing forward to reach his mouth for another passionate kiss.

“I thought that’d make me go crazy…”

“Y-yeah–” he reached her, and caressed her, from her hips to the base of her wings. “I’ve had trouble with it, too,” he admitted.

She laughed, and then groaned as he pressed his hooves against her tired, strained muscles. Rainbow stretched back, and he lifted himself up to meet her, peppering her covered chest with his mouth, moving his way up to her neck. She propped herself up as he did, and moaned: “Those tubes just find their way to all the right places…” she teased him.

He chortled and she felt his tongue on her neck. “Yeah… And you don’t even have a dick. They just love to tangle around that.”

The realization hit her, and she slapped his chest playfully. “Did you do that on purpose?!”

Fit gave another peck to her neck, and muttered: “Maybe? I wasn’t really in a hurry to fix that feature, anyway.”

“Of course,” she gasped as she felt his teeth grab the zipper. “You should be ashamed of yourself, you know?”

“Ah’m noth…” he muttered as he leaned forward, opening the suit, sliding the zipper across her neck, her chest, her stomach. She leaned back to help him unzip her. By the time he reached her nethers, she was lying on her back, hoping he’d never stop. Instead, he spat out the zipper, and she felt his tongue caressing the freshly-revealed fur.

Rainbow propped herself up as he traced his way back to her neck, and tried to untangle herself from the suit. By the time his tongue made it to her collar bone, she managed to free her front hooves. Without a word, he grabbed her around the waist, and she felt herself spin onto her back. She wiggled, freeing her wings and spreading them, as he grasped the suit, and peeled it off of her.

His hooves shook in desperate lust, but somehow, he still managed to burrow his face deep into her barrel, suckling and licking and rubbing and all the other things that made the pegasus breathless. Finally, those same groping hooves grasped the rolled-down suit, and pulled up, along with her rear. She let herself be lifted, and felt the rubbery material peel off of her.

For a moment, Rainbow felt like a present being unwrapped.

Then, with a final wet snap, the suit was off. And with her hind legs up in the air, Tight Fit decided not to lose the opportunity.

Rainbow’s marehood, now exposed to the cold air of the tent, suddenly felt a gust of warmth. She gasped and looked, but his head was a blur, diving between her legs.

His tongue dove between her folds, and she gasped, grasping his hair instinctively. Those days of teasing, wriggling tubing, of the suit rubbing in all the right places, of the nights spent desperately wishing she could relieve herself… It all poured out of her in a guttural, desperate moan as she grabbed his horn and ground his face into her nethers. But the unicorn accepted the challenge – he plunged into her like a pony who finally found a pond of water in the desert; lapping, licking, suckling, and prodding until she wriggled underneath him, calling out whatever the pleasure put onto her tongue.

Finally, she could let it all go, giving into her lust as the unicorn's hooves joined his tongue. He hunted down every itch she had accumulated, until the frustration was torn into tiny shreds of fire that filled her entire body, from her lap to the tips of her hooves, pouring into her head and bursting into fireworks.

She was flying again, faster than her wings could ever carry her. The pleasure pulled her at the speed of light, carrying her in its warm embrace, until even it grew tired, and slowly spread out into a vast, warm ocean.

Rainbow bobbed in its ever-fading waves, hearing herself pant until she found herself on the ground again. She sighed, her thighs wrapped around the head of a unicorn she hadn't known a week ago. A muffled mumble escaped him, and she let go. Tight Fit sat up, and gasped for air. In the dimmed tent, she could see almost nothing but his silhouette. A hoof came up to his lips and she heard a deep intake of breath. Then he turned, and those burning eyes pierced her, overflowing with desire. She froze as that gaze tore right through her.

Her heart was racing and her breath was held, as he leapt onto her.

Dash felt his tip prod against her and guided it into position. He drove forward, impaling her, and she bucked against him. He retracted, and she whined, grabbing him with her hind legs, pulling herself onto him, himself into her, deeper. Again and again, inch by inch, until they lay there, stomach to stomach, breathing heavily.

“You’re pretty good,” she managed.

“Pretty… good…” he gasped, pulling out of her part way, and then slamming forward again.

Rainbow gasped in turn, and locked her legs around him. He pulled back again, then slammed into her, driving the breath out of her. She wanted to mock him a bit more, to make him show her, like how she usually riled her partners up. But for some reason, she found herself grabbing onto him and moaning instead as he split her in twine.

For some time, Rainbow Dash was simply getting smashed against whatever was underneath her, and loving every second of it. The wiry stallion proved surprisingly strong. Some of that leanness, she realized, was muscle, after all, grabbing her and holding her tight to him, letting her do nothing but moan and buck against his steady, relentless rhythm.

Eventually, getting tossed around and fucked into the ground got a bit old, and Rainbow laughed playfully. She grabbed onto Tight Fit’s haunches with her front hooves, before grabbing his pelvis tight with her hind legs, breaking his momentum. He grunted lustfully, and she giggled.

“My turn.”

She let go of his haunches, and pushed gently against his soaked chest. He fell onto his back and she swung up like how AJ showed it to her that one time. She didn’t give him a second – she just bucked down until she felt him fill her completely once more.

“Mh–hu–uuuh…” Rainbow closed her eyes, and ground her hips around, feeling him out. The thick, solid mass pulsated inside of her as she slowly gyrated her pelvis. Then, as he opened his mouth, she put her hoof over it, and lifted herself off of him a bit.

“Sssh…” she said, and slammed down again.

His eyes widened, and she chortled. “You like that, loverboy?”

With her hoof planted over his lips, the question was mostly academic. She lifted herself up again, and fell down onto him, then again, for the third time, stopping, and grinding against him again.

His gaze pierced her, filled with fire of desire. She fixed him with her own stare, and his hooves froze before they could ever touch her. Instead, as she impaled herself again, they hovered there, shaking. A groan escaped her as she repeated the motion. Finally, her stare could not stop him. He wrapped his hooves around her waist, groping hungrily, squeezing her rump. She moaned sensually, and he help her lift again, and fall again. His own pelvis moved up and down, meeting her part way, until she felt his family jewels slap against her bared flesh.

She wanted to taste him, she realized. Maybe some other time, though. Instead, she rode him; slapping rhythmically onto him, letting him fill all of her nooks and crannies, slowly increasing in pace until she couldn’t take it any more, and until he no longer could.

He sat up, and grabbed her hips. The eyes said it all, and what they didn’t say, the hooves did, forcing her down further, and himself deeper, deeper than she felt him before. She gasped as his dick drove air out of her, but he was still going; she was a ragdoll skewered by him, gushing, their heat filling the tent and their wetness mixing with each slap slap slap! of their unabashed fucking.

As she slammed against him, was stretched by him, she grasped at his body as he grasped her, fondled her, pulled her closer, until Rainbow climaxed again. She felt herself squeeze him like a vice, and heard him gasp. To her immense pleasure, he went on, groaning, his hips moving like a piston. She filled with a tingling fire again as they tumbled across the tent in a desperate dance of desire until Tight Fit let out a final grunt and hilted as deeply as he could.

Rainbow felt his hot seed pour inside her, and slammed against it for one last time. She clung onto him as he filled her, and her every heartbeat wrung him dry. After what felt like a millennium, Rainbow let out a satisfied breath, and collapsed onto her lover.

They lay there, in the midst of a storm, wrapped in cutoffs, simply breathing deeply. Rainbow listened to Tight’s heart as it matched hers, and slowed down. The exhaustion of the last few days slowly came washing in like the tide, clouding her mind, and overtaking her. In his grasp, with him still inside her, she felt herself drift off into sleep.

There were no more dicks in her dreams. Rainbow was swimming in a warm sea, pushing rubbery balloons out of her way. But there was no real hurry. She shifted, and a warm current of air heated her chilly back. A pair of soft tubes twisted around her, and she woke for a moment.

She felt his reassuring breath on her neck, and grabbed his hooves, pulling herself closer into his embrace, then fell back to sleep again.

Silence woke her. Rainbow’s companion shifted in his sleep as she slipped out of his embrace. After a moment, she stretched, shifted, and winced at her aching muscles. Finally, the pegasus sat up, and took a deep breath.

A moment later, Rainbow Dash realized she was not just happy not to be dead, frozen at some mountainside. She was happy, with the whole mountain scenario being barely a blip on her radar. She sighed contently, and savored that feeling. After some time, she moved again, opening the tent.

Snow had built up around the entrance, but most of it formed a dune underneath the tent's opposite wall. Rainbow stepped out, stretched, and took in the rarefied mountain air, turning back to the entrance.

To her right, the pristine northern ice shield glittered in the sunlight. Above, the mountain pointed to the heavens, urging her to take flight. Before her, the snowed-in valley stretched, cloudless and peaceful. And to her left, the tundra stretched on, as gray as ever. Rainbow almost didn’t want to go, until she realized she was trapped on the top of the mountain, running out of supplies, et cetera et cetera.

She laughed then, carelessly, and flapped her wings. They still ached, but not enough for her to care. Most of her body ached, after all; in all kinds of pleasant ways.

A curious, sleepy head poked out of the tent. “What’s up?” Tight Fit asked.

In lieu of an answer, RD laughed again, and landed. “Wanna get down from the mountain?”

The unicorn looked left and right, frowned, and replied slowly: “Maybe…?”

She laughed again, shook her head, and grabbed the twin pendants. “Pack up, loverboy,” she said. ”We’ve got to get back to Canterlot.” Something in his face gave her a pause; she pouted, tapping her hoof on her chin, and continued: “But you know, with how tired I am, maybe we should take it easy…” she shot him a mischievous glance. “It might take us a week to get back. Or more.”

The corner of his mouth twitched. “I don’t think I have enough bits for that.”

She shrugged. “I guess you’ll have to pay me in some other way.”

With that, Rainbow dashed off, and slowly glided down the mountain, humming to herself.

They eventually got to Canterlot, and had that promised lunch. Tight’s prototype had been reduced to a bag of twitching tubes and some mildly warm gems. But as luck would have it, the two bumped into Rarity. She was very interested in his application of lay-tex, the wriggling tubes, his novel heat accumulator techniques, and once Rainbow had a few hushed words with her, she was interested in way, way more.

Dash left for her house with a few coins from her summer job, and memories that would warm her for many lonely evenings.

Author's Note

Thank you for reading!
This was interesting to write, and I hope it was fun to read, too.
I'd love to see how I can improve, and what people enjoyed. So if you can spare the time, please leave a comment!

This story was written for the 2024 Summer Sin Celebration. This is the prompt I got:

A female wears multiple layers of skintight jumpsuits (a jumpsuit is a skintight, one-piece suit that also covers all appendages). Bonus points if it's: non-consensual, itchy, uncomfortable, constricting, claustrophobic, suffocating, chafing, binding, smothering, cramping, stifling, impeding, tight-fitting, flexible, unyielding, pressure-inducing, unbearable, pinching, irritating, hampering, squeezing, straining, compressing. hindering, encumbering, gripping, unrelenting, form-fitting... I don't care about the characters or the settings. As long as the story involves a female wearing multiple layers of skintight jumpsuits, I don't care what it is. If the author's creative juices run dry, the bonus points words I provided should offer some inspiration.

And that, was how I chose to interpret it.