(All previous chapters can be found here https://www.reddit.com/u/Pornful68/s/6RsSJKSv7B)

All of the women pulled their leggings up further and tighter on their crotches; Adria in particular seemed to relish giving herself an even more absurd and defined wedgie. Aurora supposed they all did this because they were all going to be jumping around a lot. Not that these vacuum sealed motherfuckers could possibly fall down, but she felt obligated to follow suit anyway and double check that there wasn’t a visible cameltoe.

“Alright, ladies! Let’s bounce!” Sarah shouted out to the class with emphatic enthusiasm. Thankfully, they started with something relatively inactive. They all laid on their backs, legs lifted into the air.

Dozens of sculpted, sexy bodies in absurdly tight cotton and spandex began to move as one; thick legs and hard asses pumping and moving as their butts and crotches were on full display.

It felt weird to be among them like this, she felt like she didn’t belong. She didn’t, but she tried to just focus on getting through this. She was clearly the least athletic out of all of them, huffing and trying to catch her breath as her stick-bug legs kicked away with little elegance or skill.

Aurora was already sore from her attempts at absurd contortion in the yoga class, and this only aggravated things. Her legs were throbbing and sore, and that soreness and heat soon spread to her thighs and just above her ass.

“Huhh…hurrrhh…” Aurora breathed unsteadily. She felt ridiculous, meanwhile the other ladies in the class couldn’t have looked happier at the chance to look silly. Her still sore and sensitive body convulsed slightly again, she could feel a fireball start to grow in her core once again like it’d only been dormant until now.

Shit, it was a mistake to do something active again right after that last exercise had…well for lack of a better it’d edged her body. But no pleasure, just her body desperately trying to tell her that it was already tired and had had enough.

“Work it, Queens! Work it, work it!” Sarah commanded as they all went off, faster and with more force. Aurora cursed in annoyance. Her whole body felt like little embers were firing off all over it.

Aurora groans and huffs and begs for the relentless, constant movement to end; it practically feels like her legs and thighs are being crushed by a hydraulic press. She’d never done anything active a day in her life, she was surprised she hadn’t cramped up by now. Maybe it was the yoga.

“Goddesses! Lay on your left side and lift your opposite leg in the air over and over again when I say. Okay, now! One and two and three and one and two and three…” The instructor droned on as the women put those thick legs to work.

Aurora sees a sea of thighs and firmly wedgied ass-meat working over time, a tidal wave of heat and pain crashing through all of them as they groaned and grit their teeth. Aurora trembles as her body burns hotter and brighter as that fireball inside of her grows. Sharp breaths leave her lips and she can’t help but feel slightly mortified as they all flash their tightly clothed cunts to the instructor over and over again.

Sarah sighed satisfyingly and gave Aurora a little thumbs up and a wink. Aurora cursed her under her breath and looked over to Adria who seemed to be practically in love with this workout. Her skin was already glossy and her face was red as she went harder at it than Aurora.

Aurora was just focused on surviving this thing, even as that burning tingly sensation crept back into her chest and her stomach and especially between her thighs.

“Huuuurghh…” She breathed and tried to ignore it. Even as waves of heat began to rhythmically assault her cunt with every spread of her legs. Sarah grinned slyly as she looked over all those sweaty crotches flashing at her repeatedly.

“Work it, ladies! Bring those thighs and those meaty booties together again and again. Feel your whole body feel heavier as you work it. Doesn’t that heat and that weight feel great!?”Sarah recited like she’d memorized it. Many of the veteran members enthusiastically said “yes ma’am!” as they put their bodies through it. Adria included.

Aurora grit her teeth and tried ignore that horrible, awful, increasingly moist and increasingly hot throbbing as they went on. God, just make it stop.

“Good job, Queens! So proud of you! Are you ready to Pump and Bounce those glutes?” She asked. A wave of enthusiastic yeses and groans echoed out through the crowd of muscle bunnies and muscle bunnies in training as many of them followed Sarah’s every word.

Aurora is relieved to be moving on from that exercise until it’s revealed what’s next. Oh lord. Of course, they are asked to turn themselves so their backs are facing Sarah. This entire Gym experience felt like insecure women objectifying themselves to improve their body image and this really didn’t dissuade that worry of Aurora’s at all.

“Down to the ground! Now throw those booties back!” This was truly humiliating for Aurora, but of course everyone else loved it. She tried to retain her composure, even as she thrusted her ass back and could start to feel that heavenly, horrible, blissful, awful heat all over her skinny rear.

They started in a sort of almost pushup pose on the ground before switching to their knees and backing their asses as far back as they could. It was a horribly awkward movement for her, in both senses of the word.

“You’re doing a great job, ‘Rory!” Adria enthusiastically whispered and winked. Not helping at all, Aurora really didn’t want to be seen doing this. One of the main reasons besides the obvious was that her body was still pent up and she was trying so hard to push those sensations down.

Slippery wet spots were appearing all over everyone’s clothes, but even so the growing damp area of Aurora’s ass was on full display to Sarah who seemed to just think it was sweat like everyone else.

Every thrust of her ass insured another wave of growing pleasure right into her tired cunt, and she could only grit her teeth and sigh as she tried to fight her growing arousal. Her body clearly wanted to finish that Coregasm. Fucking annoying. Please stop.

And they did. For a moment. They were tasked with standing back up to their feet, regardless of how wobbly her legs were now. It was only going to get worse.

“Turn towards me. Show me you’re real Pump Queens! I wanna see some low squats! Let’s see some Bounce!” Their cruel glute dictator commanded. Aurora’s face deepens its’ shade of pink, her body becomes slicker with sweat and her lower body aches as they go down low over and over and over again.

Her thighs and cheeks are red hot, volcanic and straining with horrid pain. And yet it only burns the furnace in her core harder, pulls on those pleasure muscles she had barely known were there even more and teased her cunt like no other. Every squat down low felt like a cruel joke to her weeping cunt as it was barraged with painful hot pleasure.

“Huhhrrrgh~” Her groan of pain and exertion is one of equal pleasure. Her eyes become slightly unfocused as the repeated motion drills into her brain and makes it harder to focus.

“Bounce on it, Goddesses! Bounce on it! Bounce on it! Pump up those glutes! Keep squatting, up and down up and down!” Sarah roars. The room is getting hotter, more humid, mustier as that overwhelming smell of thick girlsweat casts a thick fog over Aurora’s mind.

‘Fuck fuck fuck fuck fuck please stop noooo~’ Aurora thinks. The burn, the pleasure is everywhere. Her cunt is playing a beautiful song of throbbing pleasure as it pounds relentlessly and rhythmically like a drum. Pulsing pulsing pulsing.

“Feel that burn! Let that burn melt all those worries and stresses in your life away. Just give in to the feeling of a good Bounce!” Aurora distantly heard. All of those sexy, shiny women that are sloppy with sweat dropping their asses and cunts down low over and over again must look awfully suggestive. All that breathing and huffing and groaning too.

“Doesn’t it feel so great to work up a sweat! To be all wet and sloppy and like you could just melt? Come on, go harder! Bounce on it! Bounce on it faster faster faster!” Sarah said. Aurora tried to hold on, tried to just keep going and ignore that she was practically masturbating in front of 20 women. The result would be a humiliation, she can’t cum.

“You can do it, Aurora! You’re doing so well! Bounce on it, bounce on it!” Adria cheered her friend on. Aurora’s eyes roll back for a moment as those words wash over her. Her cunt just won’t stop its’ horny little pleasure dance.

Surprisingly, Aurora doesn’t betray her pleasure. Her face looks steady on, her groans are rough gasps and growls that sound perfectly normal. But her dripping cunt tells a different story, not that it looks any different than the sweat on her ass or the sweat staining her sports bra.

“Okay, down on your backs!” Thank God, Aurora thinks. For a moment.

“Thrust it! I wanna see those hips moving! Thrust it thrust it thrust it!” God dammit. Their hips move in unison, legs spread far and revealing the tight crotches of their leggings and shorts as they follow Sarah’s every word. Cunts and hips and asses thrust upward, over and over and over again.

“Huhhh, shit…” Aurora sharply breathes. The scene is utterly absurd and erotic, both words that don’t describe the levelheaded Aurora at all and only embarrass her further. Maybe she just needed to get her head out of the gutter. The thought almost makes her laugh, kinda hard to do that when your cunt is in heaven and hell simultaneously.

“Thrust it thrust it thrust it! Faster! Harder! More more more more more more!” Sarah demanded. A soft whimper breaks through her stoic groans for a moment, not that anyone notices when they’re all caught up in their own workout. Especially among that roaring chorus of groans and breaths.

“Hrrrrgnfuck~” Her movement is awkward and untrained and totally unsexy, and yet everyone elses sexiness almost makes up for it and somehow turns it even sluttier.

Her legs trembled and her cunt shook; Aurora was thoroughly soaked in sweat and delirious. She looked to Adria who just beamed as her hips and crotch lovingly humped the air with almost psychotic vigor. How did they all keep it up so effortlessly?

Her toes curl and her body shakes and trembles with volcanic pleasure, her cunt’s stupid fucking pleasure symphony unrelenting as it throbbed it’s way through a rhythmic chorus of pulsing and pumping.

She was half delirious and completely wracked with nerves, but Sarah’s gaze seemed to linger partially long over their sweat-drenched crotches.

“Feel that Bounce! Faster! Chase that Bounce, Chase that Pump!” Sarah said. The room is a humid fog of sweat and it thickens the air. If they kept this up they’d practically be breathing in nothing but hot girl-fluids.

“Okay, final step! On your bellies! Good Pump Queens. Same thrusting, but towards the ground!” On no. In unison they all began to essentially hump the ground, Pumped up glutes Bouncing and clapping with each thrust upward.

Not that Aurora had any of that, but her cunt ached nonetheless. Pleasure pleasure pleasure pleasure pleasure, horrible awful stupid pleasure shot through her like a bullet over and over again. Her toes curl and her lower legs go limp as they finally reduce to jelly from the constant physical effort. Nothing is stopping her crotch and hips from humping the floor over and over again as her limp legs squirm and a long labored groan exits her parted lips.

Face is so soaked in sweat it’s hard to see. Eyes dazed and glazed and unfocused. Cunt is aching and screaming and burning like the sun. Nonexistent ass is feeling the burn nonetheless.

“Come on! Focus on the gains! Focus on those muscles screaming, focus on those muscles getting bigger and harder! Pump up those abs, Pump up those glutes! Bounce harder!” The words barely register. Don’t cum don’t cum don’t cum don’t cum please don’t cum don’t cum don’t cum is all she thinks for minutes. The chorus of pained groans from the class reaches a fever pitch.

Her crotch slammed into the floor again and she feels herself on the edge. Like a dam about to burst.

‘Please no…’ She thinks. And like an Angel descending from the heavens it mercifully stops. Or cruelly as her impeding orgasm is snatched from her. They all collapse to the ground and heave and huff for what feels like minutes.

“Good job, Pump Queens! I’m so proud of you. Even I admit I might’ve gotten carried away and made this a bit too hard for a beginner class. How are you feeling, Aurora?”

‘Ugh, fuck you…’ Aurora thinks. She absolutely hated herself for this but she hated this stupid Gym even more. She was definitely going to the minimum amount of classes after this. Of course she was still gonna go, though. She needed this job and this crazy ass experience only confirmed something bizarre was happening, even if the Coregasm feelings were just her broken body’s own reaction to this.

First, she needed a nap. Aurora’s eyes flutter as the exhausted young woman drifts into unconsciousness.