Limestone Pie's Full Bladder Adventure

by Certificate

Rating: mature
Tags: Fetish, Limestone Pie, Adventure, Sex, My Little Pony: Friendship is Magic, Thriller, Original Character, Porn
Length: 6140

Limestone Pie gets more than she asked for in a stubborn, controlling attempt to boss over her bladder as much as she pleases.

Limestone Pie has an addiction to being dominant, whether it comes to working out, bossing over other ponies, or being totally independent. Nothing is more thrilling to her than to always be in control, so when she finds herself needing to pee at an unlikely time, she does what any other pony like her would do: Hold it. However, not every pony would push it as far as to hold it as long as they can just to teach their bladder a lesson... But could she actually win a fight against her bladder? Will her lust to prove herself end up backfiring? The toned, muscular pony may soon find that she gets more than she asked for, and not in the way she expected.

(Just a quick warning that the language in the story is pretty vulgar. This is a omorashi-themed story focused on full bladders and pee desperation)

Published 2018-04-20 19:40:11 UTC
Last updated 2018-04-20 19:40:11 UTC

By Herself

"Nnrgh....."

Limestone Pie groaned in her sleep, rubbing her hind-legs against each other and pressing her head against her pillow-- or at least what she thought was one. For a pillow, it sure felt really pointy and rough... but that wasn't what was making her groggily wake up. A growing need residing in her lower-belly had reached a point to where it couldn't be ignored by her body anymore, which made her fidget and squirm in attempts to make it go away. It wasn't doing what she wanted though-- the annoying disturbance wasn't going away-- and Limestone didn't like that. Her eyebrows furrowed, and the muscular mare's strong hind-legs pressed firmly against each other as she fought the relentless urge. From the outside, her entire body looked so strong and powerful-- Limestone absolutely loved working out and being such a big, bulky mare. Strength training was just about all she did, but despite how strong she was, she still found herself struggling with something so incredibly basic... and in a way it almost made her look silly.

The pressure and intensity grew stingy enough to finally make her open her eyes, and she frowned, groaning through her clenched teeth. The urge to pee.... Now that she was finally awake, she was aware enough to immediately know what was wrong-- her bladder was filling. She couldn't remember the last time she had emptied it, which explained why it was finally starting to bother her. Her legs tensed as they firmly pressed and rubbed against the ground, and it was then that she realized just where she was-- she was outside. That definitely explained why her pillow felt like dirt and grass.

Perking her head up, Limestone looked around as memories of what had happened before she slept quickly came back to her. She was in the midst of having another one of her personal adventures, and at the moment, she was currently deep inside Whitetail Woods. One of Limestone Pie's hobbies was to go on her own adventures to just about anywhere, but unlike how most ponies would look when exploring, her body was completely barren-- there wasn't a single saddlebag in sight. To her, the thought of going out with nothing but her pumped, muscular body was absolutely thrilling. She was addicted to independence and being her own boss, which explained why she had slept out in the middle of a grassy field; she had gotten tired, so she had simply laid down and went to sleep right where she was. This kind of bossiness also meant she didn't like being told what to do, which was exactly what her bladder was doing right now.

"Mmph.." Limestone gave a short, annoyed moan in response to her bladder's urges. She didn't want to pee. To her, taking a few minutes of her time to squat down and let it all out was absolutely childish. She couldn't imagine looking tough and in control with pee splattering out everywhere. Instead, she thought that choosing to hold it would be a testament to her strong body, as if it was proof that she was a strong mare who did what she wanted. Holding it could also be seen as a challenge, and if there was one thing that Limestone loved, it was a challenge. She had a strong body, so why let it go to waste by giving up and peeing? This train of thought was something the mare could agree with. Her external urethral sphincter that she clenched to hold it was a totally separated muscle compared to all the other firm, protruding muscles that she had dedicated the past few years to training, but she didn't even comprehend that.

Deeply inhaling, the robust mare stood up on all four of her hooves, filling up her lungs with the fresh morning air. With the distant sounds of birds, crickets, and other assorted nature in the background, it was moments like these that made her feel alive. She was the only pony out here, dependent all by herself, and she loved that oh so much-- she could do whatever she possibly wanted out here. As she stood tall and admired the scenery, however, her bladder's consistent spasms distracted her once again, forcing her to press her sculpted hind-legs tightly together. The temptation to start walking in place quickly grew, but Limestone would never do a little pee-pee dance-- she didn't even want to think about how pathetic that would make her look. A grown, buff mare walking in place like a little filly waiting outside a bathroom... she would squeeze the life out of her urethral sphincter before she ever resorted to doing something like that. She instead stood with her hind-legs locked and as tense as a statue, squeezing her urethral sphincter hard as she waited for her bladder's contraction to go way. To her, this was how a strong mare held it-- standing tense and labored until the urge went away. Limestone wanted to look as strong and confident as possible, which she seemed to be accomplishing as she gritted her teeth and glared blankly in-front of her with a look of concentration.

She remained this way until her bladder stopped contracting so much, and with her urge more manageable, she began to trot forward. Her hooves pattered against the grass with each step, and she couldn't resist grinning a little to herself as she thought over how much she was bossing over her bladder right now. Every time the filling organ told her that it wanted to pee, she simply overpowered it and held it, and oh how she loved that feeling of dominance. Her marehood, which sat deep between her hind-legs with its thick, dark-grey outer-lips, could visibly be seen as tense and firm as she walked. That plump marehood was the powerful barrier between her pee being kept in her bladder, or being let out in a total waterfall. It was like a dam... and right now, it was closed. Firmly closed.

Limestone continued her trot through the woods, now fully awake and looking around calmly. She would sometimes see bushes rustle and occasional blurs of animals scurrying to hide, as well as the care-free chirping off birds surrounding her. All of those animals would've no-doubt peed by now... But not her-- definitely not her. In her mind, she was showing dominance over them by holding it when they did not, and she loved that. She knew that her bladder must've been fuller than any animals' in her entire vicinity right now, and she was now determined to keep it that way.

As time went by, however, Limestone was finding herself to be limited by her bladder's fullness. She was only walking, avoiding doing any stressful physical activities, and not even really paying attention to where she was going since she was focusing so much holding it. Upon realizing this, Limestone frowned again-- this meant her bladder was still controlling her, and that was not what she wanted. With a determined look in her eyes, she stepped over to a low-hanging tree branch, where she constantly pushed away the thoughts telling her that what she was about to do was a bad idea. She needed to show her bladder who was in control-- that she could do whatever she wanted-- and with a deep breath, she leaped upwards using her powerful hind-legs. She quickly grabbed onto the branch with her fore-hooves while in the air, and keeping her grip tight, she swung back and forth as she tried to hoist herself up. All the movements and the use of her abdominal muscles were wreaking absolute havoc on her bladder however, with such fury and intensity that it left her shocked with wide open eyes. She quickly gave up trying to pull herself up, but still remained hanging on, kicking her hind-legs violently in an attempt to do anything to lessen the pressure. She sharply inhaled through gritted teeth and tried to cross her hind-legs when kicking them wasn't working, but she felt like she couldn't squeeze hard enough no matter what. She cursed and squeezed her eyes closed, clenching her urethral sphincter the hardest she could, but it wasn't enough... Despite her best efforts, she could feel her pee slowly creeping its way towards the exit, forcing her to finally let go of the branch before she lost all control. She fell and landed on her hooves with a thud, with the impact enough to make her lose focus on her hold for a split second, causing a small amount of pee to leak out past her vulva in the form of shimmering droplets.

"Gah..!! Fuck!!!!!" Limestone cursed out-loud, slamming her hind-legs together as soon as she was able to. The impact from the smack was so hard and so loud that it echoed across the forest, and what followed was the intense, rapid trembling of a mare on the verge of peeing herself. She still couldn't squeeze hard enough, and she whimpered as another small bit of pee managed to sprinkle out past her proud marehood, coating the grass below her and making it sparkle in the morning sunlight. She still hadn't given up though, barely able to focus on panting orderly, but yet she still didn't resort to madly walking in place with a pee-pee dance that could put all other to shame. She instead found herself lowering her backside towards ground, where she prepared herself to do exactly what she told herself she would do earlier-- squeeze the life out of her urethral sphincter.

"MMMMPH!!!!!!" Limestone tensed the unresponsive muscle as hard as she could. Her face was scrunched up and the rest of her body as frozen as a statue as she put more effort into that one little muscle than she ever had in all of her workouts. Her hind-legs were cemented together, pressing against each other so hard they could likely crush a skull if there was one in-between them. She was more labored than she had ever been, but yet it still wasn't perfectly enough. Despite her urethral sphincter being overworked to clench at its maximum possible strength, a small amount of pee still pushed through, splattering against her thighs and the grass below as she stood back up. Her bladder's contraction had finally let up a little, and that extra bit of focus was immediately replaced with anger.

"What the fuck was that." Limestone spoke to herself as she briskly began trotting forward-- if she wasn't allowed to do a pee-pee dance, the next best thing was to just madly walk forward. "I can't believe I almost pissed myself back there, what the fuck." She was in disbelief over what had happened-- she had been squeezing her absolute hardest, but yet her bladder still managed force some of her urine out. She couldn't remember that ever happening to her before, and she was not happy. Was her bladder really that full?

Several seconds passed, and she didn't stop walking strictly forward with a furious look on her face-- she was constantly pressured to keep a firm hold on her exhausted urethral sphincter. Relaxing the abused muscle for just a tiny bit, as much as it needed the rest, would leave room for even more of her pent up pee to leak out in short bursts. She wanted to imagine her marehood in-between her thighs as a strong symbol of solidity-- that she would hold it, but she really wasn't feeling that confident right now. She couldn't relax at all, and her body was covered in sweat as she continued firmly planting her hooves forward. She wanted to keep going, but she wasn't sure just how much longer she could.

"Stupid freaking bladder... Since when was holding in piss ever this hard." Limestone mumbled as she continued her walk. This kept on for a few minutes, then a few more minutes, and then even more... All she had been able to think about was her bladder-- her hold on it that was getting so so weak. Keeping her urethral sphincter clenched so non-stop for so long was devastating, and whenever she tried to squeeze it harder, all she got was a tiny little response. She couldn't believe how numb and useless the muscle felt, and she feared the next time her bladder did another contraction. She didn't want to admit it, but she couldn't lie to herself that she wasn't a total victim to her bladder at the moment, doing everything she could to appease it in hopes that it wouldn't spasm. She couldn't physically do anything else, and she was too exhausted to even be mad about it. She didn't know how she was still going, but she knew she would reach her limit soon. Her breathing had been constantly tense and labored, where if anyone saw her, they would immediately knew there was a problem. She couldn't hide it anymore-- she could barely even not pee herself let alone hide it. If her bladder had a timer on it, she knew there had to have only been less than a minute left, and that was confirmed when she finally started to feel it harshly contract in a spasm. There was no way she was going to be able to hold this, but she was Limestone Pie-- she was too arrogant in herself to just give up, so she would try anyway.

"Oh fuck..!!!" After so many minutes of relentless walking, Limestone finally stopped-- the wave of intimidation her bladder was reverberating through her was incredible. She didn't want to give up, but she felt powerless to fight back as she plopped down right onto her flank. Her hind-legs spread slightly to the sides, where the thick lips of her dark grey marehood brushed against the grass, and it was almost as if the blades of grass were teasing her marehood for being mere seconds away before the dam burst. She could feel her powerful lower-abdomen sucking in, coaxing her to relax her urethral sphincter even more. She wanted to pee more than anything at that moment, but as her pee barreled closer to the exit... she rebelled once more. She clenched her teeth, feeling so much rage suddenly flow through her at the thought that she was actually letting this happen. Was somepony like her really about to succumb to something as basic as the need to pee..? Energy built up inside from her anger, to which she suddenly released it all in one last act of defiance towards her bladder.

"AHHHHHHHHHHH!!!!!!!" Limestone screamed out at the top of her lungs, tensing her body and clenching her over-worked urethral sphincter as hard as she could. Compared to all the other times she would do this, though, all she received was the tiniest little response even though she was trying so hard. She could feel her pee fiercely push through despite her best efforts, but yet she continued squeezing even though it wasn't enough anymore. She didn't want to admit that she couldn't hold it, and in a frantic hurry before her pee pushed far enough to exit, she looked down at her marehood-- the very same marehood that pee was about to pour out of against her will. She sat still, her entire body trembling and the bottoms of her eyes welling up with tears. She was glaring at her marehood with seething rage, where the pupils of her eyes were small and even shaking a tiny bit due to just how angry she was. Her rage somehow increased when she saw her pee start to sprinkle out from in-between her thick, dark grey outer-lips, despite her best efforts to suffocate her urethral sphincter through her willpower. She couldn't fathom that her pee was still able to leak out her proud, protruding marehood-- to see her pee escaping past those tough-looking outer-lips of hers drove her insane. A tear rolled down her cheek, with a swift arch of her neck, she slammed her hoof against the ground and cursed out as she finally let go.

"FUCK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"

Limestone's entire body visibly fell limp in relaxation, and she collapsed backwards, laying on her back and spreading her hind-legs so very wide apart as she finally became her bladder's bitch. She appeased its every need as she panted heavily and groaned out in pain, wanting so desperately for the pain and the pressure to finally just go away. Her hold was more relaxed than ever, and she gazed dreamily up towards the pretty blue sky with a hazy mind. The sweat that covered her body glistened in the morning sun, making the form and physique of her muscles more distinctly outlined as they were all now resting. Her previously tense and quivering marehood was now completely limp and a total victim to her bladder, but... something didn't feel right.... at all. Her ears flickered; she didn't hear anything splattering onto the grass in-front of her. Her expression of anger and disappointment changed to that of confusion as she slowly lifted her head up to look in-between her hind-legs. As relieved as she was to finally let go, she wasn't feeling total relief, and the reason why suddenly became aware to her when she saw that nothing was coming out. Further inspection revealed a yellow magical glow surrounding her marehood's thick outer-lips, and right after that discovery, she heard an unknown female voice.

"Very impressive~ I didn't think you'd last until sunrise."

Limestone immediately perked up and looked forward to see an elegant-looking unicorn mare standing in-front of her. Her coat was a pristine white, which looked clean and well taken care of from just how fluffy it appeared. Her mane and tail were both a well-groomed shiny blonde, and her large horn was glowing the same yellow color that was surrounding Limestone's marehood. The strange mare gazed back at Limestone with piercing red eyes, then gave a smirk as she stepped closer. "Surprised to see me? It's a good thing I'm here, because otherwise there'd be a big puddle of embarrassment on the ground right now."

Limestone frowned at this and glared back at the unknown mare. With her hind-legs spread so far and the unicorn standing right in-front of them, her marehood was fully on display. Limestone had felt the reflex to cover herself, but she didn't, just because she hated being seen as embarrassed. She couldn't do anything to stop the way her cheeks flushed up though. "Who the fuck are you?"

The mare giggled at Limestone's bluntness before responding. "My name is Kaminscra, and I just saved you from ultimate embarrassment. Aren't I such a nice mare?"

Limestone continued to frown-- she wasn't liking the unicorn's high and mighty attitude at all. She quickly stood back up to all four of her hooves, feeling just how full her bladder really was as it slugged around with her movements. It definitely felt weird to still feel it so full despite not actively holding it. "I'd like to see you try holding it for as long as I did-- you'd piss yourself before you even got halfway. What the hell are you even doing out here anyway? Do you want something?"

Kaminscra laughed again and began circling around Limestone with a slow, steady pace. Limestone wasn't about to have any of that though, and continuously turned to face the mare directly as she walked in circles. "What do I want? Well.... now that you ask.. how about we play a game." Kaminscra paused her circling to look into Limestone's eyes. "You may be thinking right now that me keeping your bladder all full and snuggly is nice, right? Well, it's not. Bladders aren't infinite. That means they can only hold so much. They can only get fuller, and fuller, and fuller...." The mare stepped even closer to Limestone, who remained at the same spot and glared with more ferocity. "And fuller.... Until they can't hold anymore. Then they're full." Kaminscra smiled. "And what can a bladder do when it can't empty? Well, it can only get filled with more and more pee. But when it can't get any fuller; when it's a hundred percent filled to the brim..." Kaminscra backed away a few steps, before bringing her fore-hooves up and motioning and explosion with them. "Boom!"

Limestone frowned further as she glared at the mare. "That's not funny. I'll make you let me piss before that even gets close to happening."

Kaminscra grinned and laughed again. "Well, that's all up to you~ For this little game I want to play, I'm going to hide somewhere in these woods... If you can find me, I'll let go of my hold on your cute little pussy.. or rather, I should say big pussy-- those lips down there are thick, my gosh. If you can't find me... well, you better just hope your bladder is big enough to last 'til you find me~"

Limestone began to walk towards the mare, and she clearly wasn't happy. "I said this isn't funny. Make me pee right now." She commanded.

Kaminscra just rolled her eyes, seemingly not intimidated. "Oh come on~ Don't you like a good challenge? You have to admit, it sounds exciting, doesn't it? You better hope your bladder is strong enough to stay in-tact until you find me~"

Limestone stopped trotting closer to the other mare and only glared at her in silence. She was turning this game into a way to prove Limestone's worth, which was something that she was always addicting to proving. She couldn't help but find herself agreeing with her points too as this did sound a fun challenge-- it gave her a goal to her otherwise completely random exploration. It was obviously dangerous-- her bladder itself was at stake-- but that only made it exciting. Limestone had a love-hate relationship when it came to dangerous things, and she clenched her teeth as she thought it over. She didn't want to admit that she was taking a liking to this game or "Challenge", and she especially didn't want to just agree with this mare so easily-- not with her entitled attitude.

"Make me pee." Limestone ordered once again. Kaminscra just sighed in response, and right onto Limestone's muzzle, which caused her to clench her teeth even harder in anger.

"Well, I've had enough of trying to convince you. You'll be playing whether you like it or not." Kaminscra proceeded to grin, looking as smug as ever as she backed away. "Bye-bye~ Will you find me, or will you not? I can't wait to find out!"

Limestone somehow managed to frown even further-- she had about enough of this mare. "Oh, you're not going anywhere!" Limestone lunged forward, grabbing the mare and pummeling her down onto the ground with her momentum. The two landed with a thud, but before Limestone was able to do anything else, a flash of light momentarily blinded her. After blinking and looking down below her, she saw that where the unicorn had just previously been was now empty-- she had teleported right out of Limestone's grip. Slamming her fore-hooves against the grass, the bulky mare quickly stood back up, turning her head in every direction she could think to look. She couldn't spot any sign of the unknown unicorn though, to which she stomped her hooves on the ground in a burst of rage.

"HEY!!!!! Get back here!!!" Limestone yelled out into the wilderness. She continued to glance around at her surroundings for a short while-- looking up inside trees and inside bushes-- but the mare had seemingly disappeared without a trace. "That bitch!! She disappeared just like that!" Limestone was clearly not happy. "Fucking unicorns always think they're so cool with their magic. That arrogant little bitch is FINISHED when I get my hooves on her." Being made a fool out of somepony like her was infuriating Limestone to no end, and she stormed forward, muttering curses under her breath as she trotted. It didn't take long, though, before she was reminded that she had more urgent problems she had to face with right now: Her bladder.... Despite how all of her muscles down there were at total rest, it wasn't emptying, and it was a weird feeling. Intense, consistent pressure could be felt directly at her marehood-- right where her pee should've been flooding out-- but yet it wasn't. It left her with a constant feeling that she was about to pee, which was quickly starting to bother her due to just how unnatural it felt.

Limestone groaned, continuing on for a few more seconds before deciding that she needed to figure out just how the unicorn's magic was preventing her bladder from doing what it was so ballistic for earlier. Sitting down on her firm, taut flank, she calmly spread her hind-legs to the sides, where she proceeded to gaze downwards in-between them. To her surprise, she saw a big, rounded bulge protruding out from her lower-abdomen; she had never actually seen her bladder bulging before, and to just see how filled it must've been left in her in near disbelief. That was her bladder... and it looked like there was so much currently stuffed inside of there. She groaned, squirming back and forth as merely looking at that bulge was making her want to go. She couldn't comprehend how a bladder that full wasn't emptying though, and that curiosity inspired to look down even further-- to the place that all of her pee had ever come out of. She observed the magical glow surrounding her marehood, but this time she looked with closer inspection as she leaned her head further down. She moved her spread hind-legs around in little circles, and she soon realized the exact reason why her bladder wasn't emptying. The mare's magic was pressing her two thick lower-lips against each other-- so firmly that it was as if they had been sealed together. Limestone could feel her urgent piss backed up and pressing right against those two plump lips, and she couldn't help but laugh and roll her eyes at what she was looking at-- she almost couldn't believe it.

"Yeah right she can't make me pee. I can't imagine a bladder this stupidly full not being able to empty itself." Her mind attracted to the thought of rebellion instantly. With a smirk growing on her face, Limestone stood back up, breathing in deeply and wiggling her hips. Her heart began to pound in anticipation of what she was about to do, and after closing her eyes, the mare slowly began to tilt her head backwards. She let every muscle in her body begin to relax as if she was ready to let out the biggest piss ever, to which she then spread her hind-legs, letting out a soft, gentle exhale. Her tail raised up in the air, revealing her marehood at its most exposed position-- any bystander would've seen her most personal body part as only seconds away from turning into a fountain of pee. Any animals watching from the wilderness would've seen Limestone at her most natural state, ready and willing to relieve herself from her body's most basic biological urge... but the unicorn's tampering had other plans.

Immediately Limestone could feel her bladder start to contract-- years and years of conditioning had made it fully-expect to empty. The pressure came in waves, so strong and so intense that they felt absolutely intimidating. Sweat began to form on Limestone's face as the pressure grew, but she still stood strong, keeping her hind-legs spread and her body relaxed-- she would see this through to the end. Her pussy felt like a dam on the verge of bursting, and her hind-legs began to tremble as the tension quickly began to get overwhelming.

Nngh...." Limestone's face scrunched up, and her heart pounded harder in her chest as her pussy lips were burdened with even more pressure. The mare inhaled through clenched teeth, trying her best to keep going, until the growing unsatisfaction began to reach a breaking point. "I need to pee... why can't I pee-- I need to FUCKING PEE!!!!!!!" Limestone winced and wheezed as her hind-legs began to tap at the grass, to which she quickly forced them even further apart, only to still get no results. She stayed like this for several seconds as her entire body shook in her active attempts to push out her pee, but no matter how long she stayed like this, her pee wouldn't push past her thick outer-lips. Anger flooded her mind, and in a bossy dominance over her bladder, she decided it was time to take things into her own hooves instead of letting her body's natural means deal with the problem.

Gazing blankly at the grass in-front of her, Limestone began to suck in her lower-belly, flattening her bladder as much as she could. She could feel the organ violently spasming in its own furious attempts to empty out its contents, fueling her with even more rage the more she felt her pee pressing against her outer-lips. She tried to suck in and flatten the bulge just a bit more, but the lack of relief was driving her crazy. She wanted to pee-- her bladder wanted to pee-- everything in her mind was screaming at her to pee... but yet it still wasn't happening. "Why won't it come out??? WHY WON'T IT FUCKING COME OUT!?!? GAH!!!" Unable to take it anymore, Limestone held her head upside-down to look right at her bladder. It looked so incredibly firm and defined the way her belly was flatted so much around it, squishing the poor organ and squeezing its contents to the limit. She felt tempted to just squeeze and hold it herself just so she could stop the pressure of her urine pressing so hard against her thick dark grey outer-lips, but.. she didn't. She wasn't done yet-- she was going to pee no matter what the cost. Breathing in deeply, Limestone brought a fore-hoof over to her bladder, where in a fit of anger, she pressed directly on-top of the bulge... as hard as she could.

"AHHHHHHHHHHHHHHHHH!!!!!!!!!!!!" Limestone screamed out at the top of her lungs, spreading her hind-legs so far that she lost her balance and plopped down straight onto her belly. The instant she had pressed she felt a sharp pain coming from her bladder, forcing her to reflexively pull her hoof away as she shook and trembled on the ground. Her hind-legs were still spread so far as she laid on her belly, showing off just how plump and toned her flank was as the cheeks remained squishy and relaxed. Her marehood was visible as well, with the blades of grass brushing and tickling across the thick outer-lips-- folds that were still dry without a single speck of pee on them. Her bladder hadn't emptied at all, and Limestone panted in exhaustion as she slowly curled into a ball. The pressure was unbearable. "F-fuck...." She muttered under her breath, squirming back and forth rapidly and bouncing her flank up and down. She couldn't handle it anymore, to which she once again became a victim to her bladder, appeasing it and doing everything she could not to get it to spasm anymore. She didn't want to ever have to deal with pressure like that again, and after regaining her composure several seconds later, she slammed her hoof against the grass.

"What the fuck... It's all actually trapped in there. I can't fucking believe it didn't come out." Limestone was bewildered-- after everything she had just done, her bladder was still full. Upon finally catching her breath, the mare sat up onto her flank, looking down and then caressing her bladder with her hooves to make sure it was still fine. It was as full as always, and she groaned as her hooves rubbed across the prominent organ. All of that pee was still packed in that special place of hers, and all because of the way the unicorn was manipulating her marehood to trap it all inside. Upon thinking about it, Limestone brought her two fore-hooves over to the thick, protruding outer-lips of her marehood, to which she tried to force them apart herself-- but that didn't work either. They were pressed too strongly together.

Limestone hung her head down and closed her eyes, taking the moment to relax and think over what had just happened. She actually couldn't pee... She had never experienced anything like this in her entire life, and she gulped, keeping her hooves rested on-top of her marehood-- the very thing that was keeping her from urinating. Something she had prided so much was now putting her bladder at risk... and she wasn't quite sure what to make of that.

Limestone eventually opened her eyes back up, taking the time to look down at her bulge. She didn't want it to contract anymore-- if it tried to push out its contents again, that would only mean more pressure, which was the very thing she wanted to avoid. The pressure she had felt drove her wild in an unpleasant way that she couldn't describe; it wasn't painful, but it still felt bad, as if it could drive her crazy if she was constantly exposed to it. She slowly brought one of her hooves over to her bladder bulge, simply letting it rest directly on-top of it as she stared. It felt so firm and warm, and she exhaled slowly as she examined the blatant bump in her lower-abdomen. It was protruding and defined almost like the rest of Limestone's muscular body, and she couldn't help but feel slight attraction towards it solely because of that, leaving her wondering if her bladder was technically a muscle. If that were the case, then showing it off just like the rest of her toned body was totally an option. The more she thought about it, the more her mind wandered towards all the positive effects of this little situation. Her marehood was technically an unbreakable dam now-- that had already been tested and proven. Her bladder now stood absolutely no chance against such an impervious force-- something her marehood already should've been to begin with-- giving her the opportunity to show off just how much she was holding with barely any effort. Keeping a bladder full and holding it in had to be seen as impressive, and if there was one thing Limestone loved, it was impressing ponies.

Eventually though, Limestone shook her head. Now wasn't a good time to think about silly fantasies, as much as she would enjoy it... This was as serious as it was dangerous, and she frowned as she tilted her head back up. "I need to find that mare." Limestone Pie rubbed her hoof across her bladder one last time before slowly standing back on all four of her hooves. She still made sure to keep her hind-legs close together even though she wasn't actually holding it, and she narrowed her eyes as she looked around. The mare had said she was going to hide somewhere in these woods. It was a game of hide and seek, except instead of in a house or in a backyard... it was in woods the size of Ponyville.

"Where do I even start?" Limestone muttered to herself as she looked around. She could be hiding anywhere-- up in a tree, in tall grass, or in a bush in the middle of nowhere... Limestone didn't even know where she was in the woods in the first place-- she had been purposely not keeping track of where she was going so she could be more involved and lost with the woods. She wanted to have some type of plan though, so she wasn't wandering around aimlessly in search for the mare-- she needed to be efficient, and her bladder depended on it. After some thought, she decided that the best thing she could do would be to just go in one direction and stick to it. After only a few steps though, she quickly realized that she was going to be aware of just how full her bladder was the entire time, simply lingering there at her lower-belly and pressing pee constantly against her marehood's outer-lips. This was going to be an interesting search...

Author's Note

Well, technically Limestone won-- with the unicorn's help, she's now able to boss over her bladder as much as she pleases... There's nothing it can do to win!

But what will happen to it? It can't not empty forever...

An unrevised version of this chapter can be found here: https://pastebin.com/cPsfYxfe | Let me know if there's anything you like about it because the description is done differently.