"Are you ready to lose?" Tsunami teased.

Code rolled her eyes and made a 'get on with it' gesture with her right hand. "I don't need to trash talk in order to win."

The two of them were in Tsunami's apartment this time. After their previous mutual challenges had led to an overall tie, they had arranged another evening to relax, unwind, and test the limits of their bladders – and, to spice up the tiebreaker, their bowels too. Today's victory, and all of the bragging points that went with it, would go to whoever could hold at least one of those for longer, which would be quite the challenge considering they had visited the nearest all-you-can-eat breakfast buffet restaurant that morning.

Anticipating a mess from the inevitable end result of their holding contest, the lizard and the four-eyed cybernetic dragon had set down some towels in front of the couch to cover the carpet. In addition, both of them had stripped naked, leaving Code in just her sleek green scales while Tsunami's blue scales were just as exposed as his gray, cyan-trimmed augmented limbs. Both of them were already intimately familiar with what the other looked like naked, but it still made the challenge a little more interesting, too.

Both of them were sitting on Tsunami's sofa in his living room where he had a digital clock on the coffee table, slowly counting down. Other than the clock, there was also a gallon jug of mineral water set out for each of them. Code was holding a set of small metal measuring cups, while Tsunami was leaning on the armrest, one arm held up with a finger extended as he spun a single rubber band around his digit like a hula hoop. To further make the challenge interesting, they'd agreed to each get one handicap of their choosing, so as soon as the clock reached zero, Code was standing up and setting the measuring cups down at the corner of the coffee table, picking out the half-cup one from the set and setting it the right way up.

"Half a cup seems like a lot," Code mused. "Not that I'm complaining any, but are you sure that's right?"

"Oh, I'm sure," Tsunami replied, in the middle of applying his own handicap: the rubber band. With his left hand holding his cock, his right hand wrapped the rubber band around the excess loose forescales at the tip, then twisted the rubber band around to do it again until it was on nice and securely, holding his forescales closed. Tapping the rubber band, he remarked, "I've measured before how much I can hold. I can stretch quite a bit, you know. So it seems like a fair comparison to me."

Carefully, Code squatted partially over the corner of the coffee table, positioning her slit just above the measuring cup, turning her head and tilting it to look down at herself. Tsunami kept a close eye on her too as she started to piss, cutting her stream off again almost immediately, before relaxing once more to let out a more gentle flow of pale yellow lizard urine. She took deep breaths to concentrate and keep control of herself, carefully watching the fluid level rise; as soon as it got close to the top of the measuring cup, she cut her stream off with a clench of her muscles, holding the position briefly before returning to her seat.

"All right, then," Code said as she sat back down on the sofa, glancing over towards her host. "Now what?"

Reaching to the table next to the couch, Tsunami grabbed a controller and passed it over to her. "Now we up the ante," he declared with a grin, winking at her with both eyes on the same side of his head.

She chuckled and took the controller from him as he fired up a fighting game they were both familiar with on the TV across from them, and they settled in to play for a bit... with a twist. When the first round came down to the wire but Code sent Tsunami's character flying off-screen with a well-aimed jump kick, he reached for the gallon jug of water in front of him. "One big sip for each loss," he declared, and took a mouthful of water from the jug before gulping it down. "But I'll get you next time, just wait."

"Bring it," she taunted, grinning at him. "You'll be refilling that jug by the time I'm done with you."

For all her bravado, however, Tsunami managed to turn the next match around, and he merely gave her the widest, toothiest grin he could manage with his hands behind his head as she played up her grumpiness over losing while taking her own generous sip of water from the jug in front of her. As soon as she had done so, she pointed an index finger at him and declared, "All right, it's on now."

Chuckling, Tsunami picked his controller back up for another round with a smirk... only to get absolutely stomped in the next match. One mouthful of water later and he was taking it just as seriously, leaning forward in his seat like her in silence, focused on the screen and the characters on it. Though he lost the fourth round, he handed Code a narrow defeat in the fifth. The sixth came right down to the wire with both of them heavily damaged and chucking projectiles at one another from opposite ends of the level, until Code rushed in to try and end it. Tsunami jumped down to preemptively strike her with an aerial attack, only for Code to enter a counter stance just in time, stopping his attack and sending Tsunami flying offstage.

"Okay, okay, you're relentless," Tsunami grumbled playfully as he reached for the water mug.

"You did really good, though," Code replied, flopping back against the sofa. "Maybe we should be less serious now?"

Tsunami snorted as he gulped down the water. He was definitely starting to feel the need to pee, but it was also a long way from being an emergency. "How about we do 2v2 against the CPU, and if we lose we have to both drink?" he offered.

"Sure, and put them on the hardest difficulty. Might as well make it interesting, right?" she teased.

"Interesting for our actual contest, certainly," he agreed, grabbing his controller again to navigate the menus. More time passed as they played with mixed results; sometimes they were able to isolate one of the opponents and take them out 2-on-1, and sometimes they got separated and one of them ended up getting ganged up on. But as time wore on, Code started to play worse and worse, shifting about in her seat more and more frequently. Not that she was the only one, since Tsunami could feel the pressure growing in his guts to accompany the fullness of his bladder, but her own needs were definitely proving to be a greater distraction to Code – made worse every time her fumbling caused them to lose, and thus, drink more.

"Oh come on, you're doing it on purpose now," Tsunami groaned as Code's character whiffed an aerial attack, only to get knocked away while trying to return to the central platform.

"I'm not," she grunted, pressing her legs together, "I'm just having a lot of trouble focusing right now..." Tsunami looked over at her as the match results screen highlighted their crushing defeat, and saw that she was fidgeting constantly, gritting her teeth.

"You normally hold up a lot better than this," Tsunami remarked, leaning over and giving her a nudge – and also wincing as the motion put some pressure on his own filled insides.

"Hey, I'm not done yet," she retorted, flashing him a determined look. "I just don't have quite as much experience as you do with this." She grunted and squeezed her eyes shut for a moment as she tensed some of her lower muscles. "Especially, nngh, as I've gotten into several piss holding contests before, but not the other kind..."

"If you want to admit defeat..." Tsunami offered.

She shook her head. "Oh, don't think I'll let you off that easily." After a moment and a few breaths, she exhaled and set the controller down on the coffee table. "I don't think I can play anymore, though."

He nodded and turned off the console, switching the TV over to another channel afterwards. Gingerly he ran one hand along his belly, feeling the swell of his bladder there, squeezing his legs together around his cock as he did. "Probably for the best," he agreed.

They tried to watch TV, but it was hard to focus – barely a minute went by without Code squirming in her seat, clenching her muscles to keep herself contained. Tsunami wasn't doing a whole lot better, and was the first to stick a hand between his legs to grab onto his cock, while Code kept rocking back and forth in the chair. He could hear her breathing heavily as she focused on trying to outlast him, and as the pressure in his bladder grew to critical levels while his bowels strained around the load inside them, he grew less sure about which one of them was going to make it...

It didn't help when the TV show they were watching – or trying to watch, anyway – cut to a commercial break and opened with an ad for a pressure washer, featuring a lot of shots of water spraying out at high velocity and sending droplets all over the place. Although Code glanced away and shifted from side to side, Tsunami groaned and grabbed himself with both hands as the sound of the spraying water in the background of the ad got to him. Despite his best efforts to hold it, he couldn't quite stop himself from leaking and he felt his piss gushing from his cocktip.

The hard, heavy spray immediately began to balloon out the dragon's forescales, stretching out the blue synthetic surface enough to make the hexagonal pattern on it clearly visible. Struggling enough in his seat that Code took notice, Tsunami grunted and fought with his own body to get the flow under control, cutting off his stream only for it to pick up again the moment he un-tensed himself. Two more heavy clenches later and he managed to stem the flow of urine, but even though the rubber band had held, his glans was now surrounded by his own urine, held within his stretched-out forescales.

"Well, did you leak?" Code asked, leaning over while shifting her legs back and forth.

"Th-that didn't count!" Tsunami declared, sliding his cock out from between his legs with one hand, then squeezing his thighs around the base of his dick so as to not put any pressure on the piss-filled tip. "See? The rubber band was a good idea! No leak!"

"It is still technically inside you," she conceded with a chuckle. "Guess you were right, that does look like about a half-cup's worth. Pretty impressive!"

Tsunami took heavy breaths as he focused on not losing control again; thankfully, the ad had changed to one about some boring financial service. He'd held on, for now, but another leak like that and his forescales couldn't hope to contain it all. Not that that was his only worry, either: the pressure inside his ass was at his back door, and it wouldn't be long before he'd be struggling to hold that in too.

Code, however, was already in that situation. Her admiration of Tsunami's piss-bloated manhood was interrupted by a more insistent spasm inside of herself, and he saw the base of her tail lift up, only for her to lower it forcefully right after. "Nnngh, I've never tried to hold it this long before..." she groaned out, tensing her lower muscles again to try and hold back the tide just a bit longer.

"Well, I don't want to make a mess of the couch, so let's both stand up," Tsunami muttered, shifting to the edge of his seat slowly. Code grudgingly did the same, and Tsunami counted them down: "On three. One... two... three."

Both of them tried to stand up straight but only got about halfway there, keeping their knees bent as Tsunami put one hand on the coffee table to keep himself steady while Code grabbed onto the armrest of the sofa for support. Although both of them struggled to stay on their feet, and Code's free hand darted between her legs to press against her slit, neither of them completely lost control, if only just barely. Each time Tsunami shifted his focus to either squeezing his legs around his cock or clenching his sphincter to stop it from opening up, the other side would start fighting back, desperate for release.

Shifting from foot to foot, Tsunami managed to open one pair of eyes to check on his opponent in the contest. Code's potty-dancing was a lot more energetic than his as she constantly squirmed, gyrating her hips, her tail curled down between her legs. She had to be at her limit, right? Tsunami groaned as he almost lost control again: the pressure in his guts was getting too strong and he felt his backdoor spreading out, but he managed to stop anything from getting out, leaving the very end of the first turd holding his sphincter open. No amount of clenching could get it back inside, and he knew that the next surge of desperation would be the end of him.

"Fuck," he grunted, grabbing his cock with both hands so that he could focus on keeping his anal muscles tensed.

"Fuuuck," Code echoed, fighting her own battle, bouncing on her feet in-place.

It was a tense moment, and Tsunami wasn't sure if he was going to hold on – he felt another pang in his bladder, but with both hands squeezing his cock, he stopped anything worse than another small squirt from escaping him and adding to his already-stretched forescales. The follow-up spasm in his gut didn't come, and though he mentally relaxed a little, he didn't relax his body at all, certain that it would lose him the match if he did.

Code trembled in place, one hand on the sofa with the other between her legs. "Nnh..." she grunted, "No...!" Her teeth clenched, and her knees bent a little more, and she let out as gasp as her tail sharply flagged upwards, possibly beyond her control. A groan of both relief and defeat escaped her as an entire solid brown log escaped from her ass and fell onto the towel under her, and the contents of her bowels were violently voided as she squatted down over the towel.

Tsunami grinned slightly at the sight of her losing control and emptying her ass out onto the towel, but he still had to hold on as well. However, he needn't have worried: Code cursed again as the relief from having so much shit spilling from her so freely made her lose control up front as well, and her pale stream gushed from her urethra to soak the towel under her, its strength rising and falling as the remaining turds in her ass slid out at a less aggressive pace to add to the pile under her ass.

Before he could be too smug about his victory, however, Tsunami's bladder protested once more, and what began as a small spurt of urine became a full-on stream. His forescales swelled only a little more before reaching their limit, and he felt them strain from the pressure for but a brief moment before it overpowered the rubber band holding his tip shut. Though it didn't snap, a steady, thick dribble of his cyan piss began to pour from the bunched-up forescales, and his legs quivered as he tried and failed to stop the flow, only slowing it for a moment.

"Damn, I was so close..." Code grumbled as she noticed Tsunami losing it, ceasing the fight with her own body. As the last small lump of waste was pushed from her sphincter, her piss stream steadied out and continued to soak into the towel underneath her, saturating it enough to start pattering loudly as her urine continued to strike the middle of the drenched spot. But her attention was focused on the dragon opposite her, his piss still leaking out rapidly from his held-shut forescales, who tried once again to stop the flow, and in the process lost control completely.

Tsunami's tail flagged as he groaned and a hard, thick brown log surged out from under his tail most of the way down to the towel before the other end of it slipped from him and it fell onto the terrycloth close to the growing cyan stain his piss was making. He tried to fight it unsuccessfully, holding back for mere moments before the second length of his waste was forced out by his rectal muscles, landing across the first. Giving up his resistance at last, he squatted down fully and let go of his cock, just holding the coffee table and towel as his scat continued to pile up beneath his ass and the rubber band around his forescales stopped his piss coming out as anything more intense than a thick cyan waterfall.

Well after Code's stream trickled off, even after his bowels were empty and his shit was piled up on the towel under him, his bladder was still trying to empty into his straining forescales, and only then did he finally reach down and tug the rubber band off. With the pressure released, all of the cyan urine inside gushed out in one huge blast all at once, with what remained in his bladder trickling out in a normal slow stream for several seconds more until he finally ran dry. He was left panting, and Code nodded in approval, leaning her elbow on the sofa armrest to give him a little applause.

"Congrats," she told him, "I'll have to admit defeat before your superior ability to hold it in."

He chuckled a little bit and looked up at her. "What if it was a fluke, though?" he teased, "You ought to do it again just to make sure. At least five times for a proper scientific result, right?"

She gave a snort of amusement and started to stand up. "Science? Sounds more like an endless research to me," she joked. "But if you want a rematch, I wouldn't say no..."