You had no idea who this girl was. Her ass was enormous, though! A lot bigger than the others you'd dealt with, though not as monstrously colossal as Jordana. The difference wasn't so great, and in any case, it meant you'd once more find yourself squashed against a very oversized butt. There was no time to react, nowhere to go and nothing to do at your current scale, less so with how worn down you already had been after your recent experience with Jordana.
The only thing you knew was that this girl was wearing shorts that were so pathetically short that they were practically panties with extra steps, and that her ginormous smooth buns were brown, a slightly darker shade than yours. And they were so big that they dwarfed the bike seat, which was a vast expanse of leathery material to you.
Jaya nonchalantly plopped her huge ass down onto the bike seat and began checking the display, looking for any issues after her cousin, friend and coworker Isha told her that customers were reporting the bike to be defective. Despite not caring so much about slimming down her curvaceous feature, the bike was an enjoyable experience to her as her large booty easily devoured any seat, and better yet, any unwitting micros that found themselves stranded on said seat.
Taking full advantage of the increased presence of micros that day due to the special promotions the gym was running, she had her way with any unattended micros she could get that massive ass on, her preferred way to play with them being to squish them beneath her immense weight, which, while not necessarily lethal, it put most micros under severe strain and discomfort, making many faint and others felt sore enough to want or need medical attention after.
If those poor, unfortunate souls could handle the countless tons upon tons of meaty, fatty mass that she gleefully rested on top of them, she'd proceed to drop them into her crack and thoroughly squash them with those same, enormous cheeks. Once again, biking proved to be a good activity to make sure her "guests" were treated to the full squashing might of her massive badonk as well as getting soaked in the sweat she'd get from working out, with the added hazard of having to endure her huge farts, a byproduct of her fondness for spicy food and meat, once satisfied with her homeland's cuisine but nowadays, your big sis had introduced her to the world of Mexican cuisine, from which there was no going back, as the thicc Bengali beauty would gorge herself on Salsa Shack stuff whenever she could help it, much to the regret of the micros that were attracted to her gargantuan curves, unaware of what those were capable of dishing out.
"This thing's working correctly..." Jaya said. Isha didn't specify what was exactly wrong with the bike but she guessed that she probably wasn't told either. She double checked the various functions that the display allowed and everything worked fine. She guessed that maybe there was a physical issue, so she wiggled a bit on her seat to get comfortable and began pedaling in order to put it to the test.
'She didn't notice me?' You thought at first but then you remembered that currently, you were trapped right under her threatening chasm of a crack, either Isha placed you perfectly on the dead center of this seat or Fate decided to be give you a smidge of mercy for a change. But that relief was short lived. Maybe because you'd been listening to the sounds from the outside muffled by massive, meaty asscheeks most of the time, you'd gotten the hang of it to such an extent that listening through this girl's humongous ass felt relatively easy compared to Jordana's.
At least for now, this girl was focusing on checking the bike, and it wasn't that difficult to piece together that Isha lured her by telling her something was wrong with it. You took a deep breath that immediately made you cough and gag as your immediate atmosphere was far from fresh, with that salty reek that you knew came from sweat mixed in with hints of noxious gas, although it was too faint to be able to tell how they'd compare to those you dealt with in the past. Then again, Jordana's had been the absolute worst on every aspect so far and you hoped you wouldn't find someone to surpass her.
'With any luck, she'll get off here before more of that happens' You thought, covering your nose to mitigate the smell reaching your nostrils. A big irony was that you weren't pinned down under this girl's moon-sized cheeks yet you were helpless at the same because you were on a bike seat, unable to go down or get anywhere else. Going down to the floor was not an option even if you could survive the fall.
Soon, the gigantic meaty walls at your sides began to rise and lower, shifting from side to side as well along with her wide hips as she began pedaling. Far from a picnic but so far but not as unpleasant as when Isha did it since she had you engulfed and pressed down by one of her massive cheeks, feeling how it heated up as she kept going only to get drenched in th sweat that her shorts' fabric didn't catch.
Speaking of Isha, she had been watching from a distance but making it look like she was working. Ever since you arrived and knowing how protective of you both Ariadne and Jordana bad been, she couldn't help but feel the urge to mess with you intensify, like the typical kid seeing the cookie jar set beyond their reach not as a deterrent but as a challenge. She hadn't gotten this invested on any other micro so far but she enjoyed it, even when right at that very moment she had a few of them stuffed down the back of her shorts, buried between her juicy asscheeks and providing them with pleasant tickles. They would only last a single exercising session at best though, then she'd return them to where she found them or place them elsewhere to be unknowingly caught by another lady.
Jaya didn't notice any issues with the bike so far, but then again she started very lightly. She knew these things were expensive and had been recently bough and they could only inform Ms. Flatum of the issue after a very thorough inspection was conducted, no one wanted to risk earning the wrath of one of the rising stars in the business world, the woman was rising quickly and would soon become one of the wealthiest people in the entire city only behind the Mayor herself and the fearsome Zaniki family.
She bounced on her seat a little, a slight feeling she was only minimally aware of and a consequence of the sheer size of her ample bottom assets, which were her pride, joy and her main tool to satisfy her greatest desire: to utterly dominate any micros in her path. However, to you, that bouncing caused tremors accompanied by intimidating booming noises. Even with what little light could reach you here, you could see some of these absurdly massive, jiggly round masses that threatened to squish you with their overwhelming bulk. But you had a sanctuary at least for the time being, laying under the crevice between these oversized fleshy globes you were technically safe as long as you avoided detection.
As the minutes passed, Jaya failed to find any obvious issues or defects with the bike, which got her mildly annoyed since this task interrupted her gleeful "hunting" for micros to play with. Knowing her fun-loving cousin, she was sure that Isha was already picking off micros on her own at her leisure, and either squashing them on her own or setting them up to be caught under the large, unaware asses of random women. So she increased the pace, thinking that maybe there was a problem with the bike or the display once getting past a certain speed.
You were bored out of your mind as you remained laying under this girl's huge asscrack, though at the same time, you were afraid that she'd sit on you in a way that got you squashed under one of her planetoid-like cheeks. Getting found after that would be even worse, since this girl was likely in cahoots with Isha. But so far all you got from her were some frustrated huffs and some mumbled complaints about work. Then the jiggling and quaking all began to ramp up. She was picking up the pace for sure.
The smell of salt in the air got stronger, as well as a sense of humidity though you didn't get drenched yet, her tight shorts were absorbing the sweat that had begun pouring from the vast surface of those same squishy but utterly gigantic cheeks that threatened to engulf you every moment. You sighed in relief that this girl didn't have Monique's levels of sweatiness and you guessed that this war of attrition was reaching its late phase, if you could make it through unsquashed and undetected, you could consider it a win. Not getting drenched by gallons upon gallons of hot, reeking sweat was more fo a bonus at this point.
This increased movement didn't come without consequence. Jaya's slight, pudgy belly also bounced as she began pedaling hard and this had the unfortunate effect of making her stomach resume bubbling up again, as if it had fallen asleep on the job and just now it resumed breaking down her large lunch from earlier. Plus, several bubbles that were already on their way down her gut got dislodged from where they had found themselves stuck.
Soon, Jaya felt the pressure building up in her gut, slightly bloating it. For the nonchalant girl, hardly an issue. In fact, the only thing that bothered her about it was the fact that it'd get "wasted" instead of being used to fumigate some poor, unfortunate micro trapped in her prodigiously sized rear. However, there were a few girls around her, minding their own business as they exercised as well and out of respect to them as customers, she decided that she wouldn't be letting it rip freely in all its usual thundering glory. She carefully let the pressure out in careful, silent bursts that significantly warmed up the back of her shorts and her seat, which made her giggle as she imagined having a micro back there, getting baked by her hot, noxious gas.
Unknown to here, there was indeed one, and while these blasts were virtually silent to her or any other people around, to you these were still loud explosions that came with gale force winds, albeit thankfully not powerful enough to send you flying. You coughed and gagged at the steamy stench and were forced to breathe through your mouth, which didn't help much as now you tasted how loaded with spice that gas was...