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Run Me Like a River

Summary:

Suguru had locked up Satoru's cock in a cage and stuffed a sounding rod into it, too. The catch? He hadn't let him out all day to even use the bathroom and Satoru had to sit through a meeting with other sorcerers.

Satoru was getting desperate.

Notes:

A combination of a primary and secondary prompt for JJK Gotcha for Gaza. Check out their twitter @jjkaisenaction to either donate or write fics for those who donated to provide relief supplies and aid to those in Gaza.

(See the end of the work for more notes.)

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Satoru couldn’t concentrate.

 

He knew their meeting was important as he sat side by side with Suguru at a fancy restaurant to talk to other special grade sorcerers, but there was something else that kept stealing his attention away no matter how hard he tried.

 

Satoru shifted in place again in some desperate bid to somehow relieve the pressure on his bladder, but just like every time before, it didn’t help in the slightest.

 

“Satoru, I ordered you another drink. Your favorite,” Suguru said as he slid another sugary sweet mocktail his way with a little smile that Satoru knew so well. It wasn’t anything like his actual sweet and caring smiles he wore when he truly treated Satoru to something. His eyes closed a little too much into crescent moons and his lips smiled a little too sharply for it to be anything but thinly veiled sadism.

 

Yet just like everyone, the other two sorcerers across the table from them bought Suguru’s act. Satoru could swear one of them almost cooed at the display and Satoru had no choice but to smile sweetly at Suguru and tip the drink back. As much as he disdained social niceties, the meeting was important and Suguru had been exceedingly clear that he could make a sour impression on the sorcerers.

 

“You’re lucky to have such a caring boyfriend,” one of the sorcerer’s remarked with an almost dreamy quality to their voice.

 

If only they knew. Satoru took another torturous sip. Maybe if he was good, then Suguru would take mercy on him. As usual, Suguru had confined him to his usual cockcage, but had also fed one of his thick sounding rods down him, saying that he might just need it.

 

Suguru hadn’t let him out since early in the morning, but had instead forced more and more water down Satoru’s throat. Even his lunch had been soup and Satoru could swear he could hear his heartbeat in his bladder.

 

“You flatter me,” Suguru responded as he pulled Satoru closer to him by the waist with another fake smile plastered on his face. The movement looked romantic, but Suguru snaked his hand around Satoru’s waist just to palm over his stomach before he pressed down, right into Satoru’s bladder.

 

His vision went wide from the sheer force as Suguru crushed it. He couldn’t hold it back. Satoru couldn’t. Just a second more or a little harder and he’d pop. He couldn’t —

 

Suguru stopped pressing and Satoru took a shaky breath, just to realize that everyone was looking at him, their eyes wide and so concerned. He couldn’t have let out a sound. He’d been so good until then. Had drank everything Suguru had given him and barely even whined to be let out to pee. He couldn’t have messed up now.

 

Suguru placed the back of his hand over Satoru’s forehead in faux concern as he faked looking over him. Even more heat rushed up into Satoru’s face as he held himself still. Everyone had to know. There wasn’t a question about it.

 

Suguru finally pulled away and looked at the sorcerers across from them with yet another one of his fake smiles. Satoru hated that look on him that could convince everyone that he was some goody two shoes. Only a few people knew the actual truth and Satoru happened to be the one who knew it best. Personally, at that.

 

“My apologies. Satoru hasn’t been feeling the best today, but was very insistent to still meet with you two anyway. That’s why he’s been so quiet today,” Suguru stood and Satoru mirrored his movement. He could barely feel anything but his throbbing bladder. “Let me check up on him in the bathroom for a moment. We’ll be out soon.”

 

Satoru followed Suguru to one of the private bathrooms on shaky legs. He could feel the liquid sloshing inside of him and surely it had to be audible with how he hadn’t been allowed to pee all day.

 

Suguru shut the door behind them and his earlier smile, no matter how fake, disappeared within a second. “I thought that surely you’d be able to be good for our important guests, Satoru. Or is there something I really should be concerned about?”

 

An actual toilet lay just a few feet away from them and Suguru always carried the key to Satoru’s cock cage in his pocket. He was so close he could almost feel the relief that he’d find in draining his bladder. He was so close.

 

“Please let me go pee, please,” he started and usually it took so much longer to start begging, but he didn’t care anymore. Suguru hadn’t let him out all day. “It won’t even take long and we’re already here and I can’t focus cause —”

 

“I never said you needed to focus,” Suguru hissed, and Satoru snapped his mouth shut as Suguru grabbed his chin and pulled him down to look at him eye to eye. “I needed you to, at the very least, be quiet. You’ve never wanted to talk to these ‘know-it-all weak sorcerers’ as you’ve called them. Now what is it, Satoru? Or did you just whimper out of nowhere as one of your pranks on me?”

 

Desperation washed away the rest of his ego and Satoru didn’t care anymore. He didn’t care if Suguru would cut him off halfway by squeezing the base of his dick. Satoru couldn’t hold it any longer.

 

“I need to use the bathroom. Please, Suguru? I can’t hold it anymore and —”

 

Suguru’s eyes glinted as the corners of his lips quirked up. That was never a good sign, but Satoru didn’t move a muscle as Suguru knelt down to unzip Satoru’s pants to reveal Satoru’s little dick trapped in the baby blue cage Suguru loved to keep it in all, topped off with a small gem that poked out from the top of the sounding rod Suguru had stuffed in him.

 

“So that’s it? That’s what you need?” Suguru asked, and Satoru nodded even if everything about the situation said Suguru wouldn’t give him any relief. Suguru flicked out his tongue to wet the tip of Satoru’s dick between the bars. He couldn’t help but whine, the little moisture somehow only making things worse.

 

Suguru only looked pleased with himself as he flicked the end of the sounding rod, and Satoru’s eyes watered as the vibrations went up his dick and directly into his bladder. It was all too much. Far too much to the point Satoru’s legs trembled. But Suguru would be so mad if he pissed on him. He’d slipped up before when Suguru had let him out to milk him and he hadn’t been allowed to cum for weeks after, all while Suguru would keep a vibrator in him that could be controlled by remote, just as punishment.

 

“See, I don’t think you deserve to go,” Suguru said as he began to lightly skim his fingers over Satoru’s dick through the bars. Somehow, it only coaxed and begged his muscles to relax and finally piss himself. “You embarrassed me in front of everyone just because you couldn’t handle a simple hand around your waist.”

 

It hadn’t been because of that and they both knew it, but when it came to any of their scenes, Suguru didn’t want to hear it. It didn’t matter what had happened. Suguru was always right and could treat Satoru accordingly.

 

Suguru thumbed over the lock on the top of the device. “Now Satoru, can you tell me just why you have to wear this?”

 

“Because… because I shouldn’t be thinking with my dick,” Satoru whimpered as Suguru continued to touch him. Maybe that would be enough for Suguru, but it never was.

 

Suguru spat on it and Satoru gasped. He’d almost let go and pissed himself from just that as he trembled with want.

 

“And what do we call this useless little thing again?” Suguru said as he massaged his spit into Satoru’s skin. Tears welled up in Satoru’s eyes. It was all too much.

 

“Clit. It’s a clit,” Satoru stammered out. He didn’t have the will to keep resisting when Suguru knew how to press every button to both force and coax him into wetting himself. “Too small to be a dick. And pretty. I should forget about it.”

 

Suguru hummed in approval at long last and maybe if Satoru just made him happy he’d be allowed to finally go. 

 

“Should forget so I can be a perfect hole instead. I can be a good girl, Suguru. A good girl who doesn’t need her clit played with,” he got out as humiliation washed over him. Suguru loved it when he had Satoru dress in lacy lingerie or skirts at home. Loved it when Satoru would put makeup on at his request, just so Suguru could smear his glossy lips over his cock and fuck him until his crying made his white mascara streak down his cheeks.

 

“There’s my good girl,” Suguru purred as he stood again. No matter how much the burning humiliation turned Satoru on, he couldn’t even harden with the cage around his dick. Suguru pressed a soft kiss against Satoru’s forehead as all his earlier sadism melted away. “Everything’s under my control, okay? You don’t have to struggle against it or use your pretty head.”

 

“But,” Satoru started, his voice breaking because he needed it. He physically couldn’t hold it in for much longer. “Can’t… Suguru, I can’t hold on and, and —”

 

He didn’t want to piss himself in front of everyone. That was a hard boundary for him and he’d let Suguru know beforehand. He was nearing his absolute limit.

 

Suguru just caressed his face before his hand trailed down, the heel of it hovering threateningly over his bladder. Satoru gulped and kept himself perfectly still. Suguru wouldn’t actually make him piss himself when they were just a few feet away from an actual toilet, would he?

 

“Here, let me help you understand what I meant,” Suguru murmured before he smiled and pressed down, crushing Satoru’s bladder.

 

Satoru yelped and tears pricked his eyes as he arched, only for Suguru to pull him in by the back using his free hand. The pressure increased, Suguru making his already close to bursting bladder even smaller.

 

He couldn’t hold it any longer.

 

Satoru’s bladder muscles gave out and surely he’d be pissing himself in a near unstoppable stream, just for… nothing. Nothing came out despite how his muscles had relaxed, despite how every part of his body told him he should be pissing and finally draining himself.

 

Satoru’s breath caught on the beginnings of a sob and a tear trickled down his cheek. Why couldn’t he go? Why wasn’t anything coming out?

 

Suguru tapped the end of his sounding rod again and it sent even more vibrations through him. It all clicked into place and he needed that rod out immediately. It was stopping the flow, was plugging him up completely so not a single drop could escape.

 

Suguru thumbed Satoru’s tear away and even if he was wearing a soft, almost proud smile, that sadistic glint in his eyes told a completely different story as Satoru trembled in place.

 

“See? It’s all taken care of. You can’t disobey me now even if you tried,” Suguru said, his voice silky smooth and coaxing. Satoru couldn’t pee. He literally couldn’t and Suguru could keep pouring drink after drink down his throat and Satoru would have no choice but to just become fuller with each one.

 

Suguru knelt down and pulled up Satoru’s pants again so he could button them around Satoru’s waist again. “Let’s go back now, Satoru. It should be easy to be good now that you know.”

 

Satoru gave him a shaky nod and Suguru led him back out. Satoru listened as he explained to the other two sorcerers that Satoru was just tired from his constant missions and hadn’t been getting enough sleep.

 

They nodded along and gave Satoru pitying looks, just for Suguru ‘spoil’ Satoru and buy him even more of his favorite drinks since sugar always helped keep him awake. Satoru had no choice but to take each one and drink them, the liquid seeming to go straight to his bladder and have absolutely nowhere to go. When they finally left, Satoru could swear he heard it all swishing inside of him.





It was an eternity before they got home and walked through their door, yet Satoru could only think of the near burning of his bladder and how nothing could get out. He hadn’t been able to even try to hold it anymore and his body kept straining to release, just for nothing.

 

“Suguru. Suguru please,” he whined. He rutted against Suguru’s leg for some pressure, for the tiniest of reliefs, but the cock cage around him didn’t even allow him that. “Please let me out. I need —”

 

Suguru just huffed out a little laugh and kissed his forehead before he walked away as if he hadn’t heard him. As if he thought it was cute and nothing more.

 

“Please,” Satoru begged. His lip quivered and he’d been fighting against the more visible signs of needing to go for so long. “Please let me pee. You haven’t let me go and —”

 

“And you haven’t earned it yet,” Suguru interrupted him with a cold tone. Satoru froze as Suguru actually turned and walked back to him. “Or did you already forget that’s when I’ll let you out?”

 

Satoru shook his head back and forth as tears finally pricked his eyes. He’d tried so hard and he needed to go so bad he couldn’t think of anything else. He’d do anything to at least go a little. It didn’t even have to be all the way, even if Suguru stopping him would be borderline torture.

 

Suguru sighed fondly and relaxed as he saw Satoru’s tears, as if it was exactly what he’d been waiting for.

 

“Oh, precious girl,” he cooed as he leaned forward to thumb away Satoru’s tears. He didn’t even care that Suguru was calling him a girl anymore. Anything so long as he’d be allowed to go. “Are you willing to earn it?”

 

Satoru nodded. Anything so long as Suguru would put an end to the torture and need that coursed through him.

 

Suguru just smiled in a way that never spelled good things for him, but Satoru wrapped his arms around Suguru’s neck as he was scooped up and carried to their bedroom. He’d be so good if that’s what Suguru needed him to be.

 

Suguru placed him down on the bed and began to undress him, Satoru arching into his touches in an attempt to show him just how much he needed it, just how good he’d be for him. It wasn’t long until he laid bare on the bed for Suguru, spare for the cage around his dick that Suguru still hadn’t unlocked.

 

“If you really want to earn it,” Suguru started as he shrugged off his jacket before he fished out the key to Satoru’s cage he kept in one of the pockets, “then I expect you to orgasm untouched.”

 

Satoru nodded in a daze even as his head spun with the concentration it took to not squirm in place. He still hadn’t managed to do it yet, would whine and plead for Suguru to please let him come, only for Suguru to refuse and only ever torturously milk him once a month for his health. The first orgasm would be heaven, but Suguru loved to wring one after another out of him until only a watery drop would come out of him or he’d pass out. Not even pleasure was allowed to be good for him if he couldn’t do it just right.

 

Suguru set the key on their dresser and began to unbuckle his pants. “So that means you can’t touch what now, Satoru?”

 

He wanted him to say it.

 

“My clit,” Satoru whispered. He watched as Suguru let his pants drop to the floor and the bastard was already hard. He must have been turned on the entire night as Satoru squirmed in discomfort and agony. “Can’t touch my clit.”

 

“Good girl,” Suguru praised as he finally climbed onto the bed with Satoru. Satoru spread his legs despite how they trembled, just as Suguru had taught him to. At first, the plug that Suguru always kept in him had been near unbearable to walk around in, but Satoru had barely even noticed it that day as his need to piss had grown and grown.

 

“You’re finally getting looser now,” Suguru mused as he thrust it a few times before he pulled it out with a pop. “Finally getting some headway into developing your ass into a proper pussy.”

 

Satoru whined and lifted his hips so Suguru could see his hole better. He always seemed to like it and just maybe if he was pleased enough then he’d overlook when Satoru wouldn’t be able to cum without being touched and still confined in his cock cage.

 

Instead of thrusting his fingers inside of him, Suguru reached out and tweaked one of Satoru’s nipples. A zip of pleasure streaked through him and he whined. They hadn’t always been so sensitive, but Suguru hadn’t ever left them alone once he’d seen them. He didn’t even let him wear bandaids over them when they’d pebble and harden even under his uniform.

 

Satoru still hadn’t resigned himself to wearing the little bralettes Suguru had bought for him that lay hanging in their closet. He wasn’t that sensitive yet for another self-inflicted humiliation.

 

Suguru twisted his nipple again and dug the nail of his finger into them. Satoru cried out and surely if he was out of his cage, then he’d be hard. It was all so confusing to his body, Suguru able to play it like an instrument so desperation, pain, and pleasure rushed through him in waves far too similar to each other for Satoru’s quickly scrambling brain to differentiate.

 

“Want these to swell with milk one day,” Suguru murmured as he reached to their night stand and clipped on all too familiar nipple clamps. A tear finally trickled down Satoru’s cheek, but they were only just beginning, weren’t they?

 

Suguru scooped out some of the lube that still wet Satoru’s hole and spread some of it along his cock, the thing always huge, but always so much girthier when Suguru got aroused. Usually, Satoru loved it, but it would only make less space inside him now. He couldn’t have another thing inside him.

 

“What do you say, Satoru?” Suguru reminded him.

 

Satoru’s lip quivered and even more heat rushed to his face, but he so desperately needed to pee. He just had to be good a little while longer.

 

“Please fuck my pussy,” he whimpered, his voice tiny to even his own ears. “Wanna be good. Just want to be good…”

 

Satoru’s voice caught on a sob and Suguru shushed him as he leaned over to kiss Satoru’s tears away. “You’re being such a good girl, princess. So good for me right now. You can have it, don’t worry.”

 

Satoru took in a shuddering breath when Suguru pulled away and he already knew he wouldn’t be able to fake whatever sort of impossible orgasm Suguru wanted from him. Suguru would catch him immediately and then he’d be bad for sure. He didn’t even know what sort of punishment Suguru would give him if he tried to trick him.

 

The blunt tip of Suguru’s cock nudged at his entrance and Satoru tried to relax. He really did as he reminded himself to relax his lower body, but it was impossible with how his bladder was so full, with how his body kept trying to push it out just to be stopped.

 

Suguru bottomed out in one stroke and Satoru shrieked as he arched off the bed. Tears streamed down his face and he gripped the sheets beneath him. He was so full. Far too impossibly full that his bladder spasmed with the way Suguru’s cock pressed against it. He’d explode or something would surely burst. He physically couldn’t contain anymore and —

 

Suguru pulled out just to thrust again and again, Satoru sobbing in time with each one. It finally dawned on him that Suguru wasn’t even aiming for his prostate, but for where his bladder was so that stars and pure white sparks would burst across his vision.

 

Satoru wasn’t sure if it was agony or pleasure, both senses swirling together and igniting in his brain.

 

“You can take it, can’t you princess?” Suguru encouraged as he kept thrusting. Satoru wasn’t sure what he needed anymore. He needed to pee so bad, but the cage around him hurt as his poor little dick tried to strain against it.

 

Satoru couldn’t stop squirming as heat seared through his body and the pleasure and desperation built in his stomach. It was too confusing. Too much, and yet it kept growing. It kept him tightening more and more and —

 

“Satoru,” Suguru breathed as he leaned down to whisper into his ear, his breath hot as it puffed across his face. “What do you need to push you over? I know you can do it princess.”

 

Satoru shook his head back and forth, the answer so obvious if only that cage and sounding rod would come off.

 

Suguru pulled back and aimed another thrust just so it would push at his bladder. Even more tears streamed down Satoru’s face. “Or do you need to be bad?”

 

No. No, he had to be good. Good so Suguru would finally let him pee.

 

Suguru sighed and began to bring his hand to Satoru’s caged dick.

 

“No!” Satoru screamed. His voice broke. He needed to go. Anything for Suguru to let him piss. “Don’t touch my clit! Don’t! I —”

 

He sobbed and he needed that too, but he needed to piss more. He could feel it sloshing inside him with every thrust.

 

Suguru just grinned at Satoru’s answer and rested his hand right over Satoru’s bladder, before he pressed down in time with a thrust. Satoru didn’t even have the energy to shriek again, but just whimpered as he writhed under him and something finally snapped inside of him.

 

Sparks erupted in his vision and something like fire exploded through his every nerve as his body tried so hard to unravel and release. Satoru wasn’t even sure if it felt good or not, but he cried out, the feeling something he couldn’t escape from.

 

Satoru’s mind blanked.

 

“Such a wonderful girl,” Suguru grunted and somehow everything was even more intense, almost painful like how Suguru would keep milking him even after his first orgasm. He couldn’t stop clenching down around Suguru in some attempt to push him out, but only it caused Suguru to grin almost deliriously. “Your cunt is milking me so well, Satoru. So fucking good for me.”

 

Good? He was being good? Satoru wasn’t even exactly sure why he wanted to be good anymore, but it was important, and he whined at Suguru’s praise.

 

“Good girl…” Satoru whimpered and it felt so wrong, but Suguru always liked to tell him that. He could be a good girl for Suguru since that’s what he wanted.

 

Sticky warmth filled him at long last and Satoru’s vision blurred before it went out. It was far, far too much.

 

 





When Satoru came to, Suguru had already cleaned him, but his bladder panged and Satoru bit his lip. He needed to go more than anything else. Suguru would let him, wouldn’t he? He’d promised he’d reward him if Satoru was good.

 

A click sounded as Suguru finally unlocked Satoru’s cock cage and took it off.

 

“Time for your reward,” Suguru said in lieu of a greeting, and he picked him up once again and carried him to the bathroom before he set him down on the toilet. Satoru trembled in want, but forced himself not to move. Only Suguru was allowed ownership over what he called his clit and pussy, not Satoru. It was why Suguru had locked him up in a cage in the first place. He didn’t trust him to go to the bathroom without being bad and now he always made Satoru sit on the toilet and go like a girl so he wouldn’t even touch his dick to aim.

 

“Try to hold it for a second,” Suguru commanded and Satoru nodded as he bit his lip and tried to tense his muscles.

 

Suguru took hold of the jeweled end of the sounding rod and began to ease it out. Satoru needed to go and there was finally just a little more space for it all, but Suguru had told him not to. He still had to be good.

 

The taste of copper filled his mouth as Satoru split his lip as he trembled in place. Good. He had to be good.

 

Suguru pulled the rest of it out and looked Satoru up and down, something almost proud on his face as tears pricked Satoru’s eyes from trying to keep it in.

 

“Now,” Suguru said and Satoru finally let go.

 

It all rushed out of him at once and it almost hurt as his vision whited out. He collapsed forward as he sobbed and it all felt more euphoric than anything else he’d ever experienced.

 

The stream didn’t stop, not with all the drinks Suguru had forced down him and the time he hadn’t been allowed to go. Suddenly, he was so glad Suguru forced him to sit, Satoru’s legs sure to have given out if he’d even attempted to stand.

 

It eventually reduced to a trickle and Satoru gasped through the aftershocks. The room spun around him from the sheer force of it all, but Suguru hadn’t stopped him halfway through. He’d been allowed to fully go.

 

“Good girl,” Suguru praised as he leaned over to press a kiss against Satoru’s sweaty forehead, his bangs plastered to it from his exertion.

 

Satoru let Suguru wipe off his little dick before he clamped the cock cage around him again. After today, Satoru didn’t even want to think of all the new things Suguru would want to try with his new kink, and Satoru’s stomach flipped in a mix of fear and excitement. Suguru always turned his pleasure into pain and his pain into pleasure, but Satoru couldn’t get enough of it.

Notes:

every writer needs to write at least one fic to fill out their portfolio, am i right guys? .... guys? (reading fanfic has unlocked way too many kinks for me)

please tell me what you thought and hope you enjoyed!!