Yure the Kitten and Krome the Wolf were cubbying out. The two little ones were just in their diapers and playing wrestling. Yure, being fatter, was easily overpowering Krome, but Krome, being stronger, could always push Yure back. They were playing their little fight on the bed. Every once in a while, their diapers pressed together, whether because Yure sat with his diaper on Krome's own or because they were trying to throw one another to the mattress under their little feet-paws. At some point, Krome pinned Yure down and their diapers crinkled nicely together, with Krome pushing all of his weight against Yure's padded crotch. The diapers were the only thing they wore. The game was working both of them up and soon both had half-stiffies. When that happened, they halted the game for a cuddling.
- Say, Yure - Krome spoke. - Do you feel thirsty?
- In what sense? - asked Yure, chuckling.
- Oh, in literal sense.
Even though Krome was toddler-sized, he was a regressed adult. Yure only looked like a cub too, but, inside, it was a different story. They held paws together and walked downstairs, from Krome's room to the kitchen. Krome's house was pretty rustic, because he lived in a nordic fantasy setting. Surely, although it was rustic, it was by no means poor. And he had modern equipment, so the rusticity was only in terms of structure and building materials. He pulled a jug of juice from the fridge.
- Here, bottomless bladder - said Krome, teasing Yure.
Being called such name made Yure's penis stiffen further. He liked when his habit was acknowledged. They shared the juice, but Yure alone drank 4/5 of the jug. He had a balloon belly at the end of the juice break. Krome giggled more and tickled Yure a little, and was rewarded with a tiny, short-lived gush of urine that entered Yure's diaper, making a cute wet patch.
- Hey! - said Yure, squirming.
Krome stopped the tickling.
- Sorry, just being devious - said Krome, winking.
They hugged. They smelled like baby sweat a bit, due to the wrestling from earlier. It was mostly water. Yure had a penchant for tight hugs and the tightness of the hug made Krome poot.
- There, we are even - said Yure. - Sort of.
Krome had to go as well, but number 2, while Yure just needed a number 1. At least, for now. They then had an idea: what if they swapped roles? They discussed it for a little while and laid down the rules: Yure would take a laxative and Krome would take a diuretic, then neither could go any of the ways. Both would have both urges. Whoever loses it first, has to change the other's diaper. They shook paws and decided to do this together. The thought of seeing his friend going poopy in a diaper made Krome's penis also stiffen. They both had other urges going on, but they were not mentioned.
Once both had taken their pills, they drank water to keep themselves hydrated, since both laxatives and diuretics can make a person dehydrate fast. That would make Yure need to go worse, but he always got off on that feeling.
- Wanna go outside a little? - asked Yure.
- Sure! - said Krome, going to fetch his baby leash.
Yure, on the other hand, went to grab some more decent, yet babyish, clothing for them, setting for two onesies. They put the onesies on each other, before Yure put the leash on Krome, who would use the leash during the walk. However, when they were to go back home, they would swap and Yure would wear the leash.
Krome was mostly dragging Yure around, pulling the leash, but, whenever Yure didn't want to go some way that Krome tried to drag him, he could just sit down and Krome would be unable to move that lard ball. Yure was feeling more aroused, as the tight onesie was pressing his damp diaper on his erection, keeping a nice friction going on... He sighed and decided not to tell Krome that he wanted some private time. They reached a playground. The diuretic began to affect Krome. He tried to grab his dingy through the onesie and diaper, but the thickness of the diaper and the lack of adherence on the onesie surface prevented any possibility. He whimpered.
- Something a matter? - Yure asked.
- Gotta pee-pee! - said Krome.
- Oh, don't complain, we barely started - Yure said, plopping a pacifier in Krome's muzzle.
Krome sucked on the pacifier cutely, though feeling distressed. Yure had an advantage, since Krome was half-incontinent.
- I have been holding my pee since yesterday! - Yure blurted out.
Krome's eyes widened.
- No way! - he yelled.
Yure did a little dance in place and Krome's ear twitched when it caught a discreet sloshing noise. The little wolf almost swallowed his pacifier.
- Come, we got a long afternoon of playing! - said Yure, going with Krome to the slide.
As soon as Yure climbed the slide, he felt his tummy gurgling. The laxative was affecting him now. He clenched his tush just in time, almost having an accident there and then, during the effort of climbing the ladder that took to the slide's top. He slid down, now dragging Krome, instead of the other way around. They repeated the process in different positions. Sometimes sitting, putting pressure on their tushes, so they could hold the poop better, but sometimes on their bellies, sliding with their tummies being nicely pressured to void.
Krome farted again, gritting his teeth, after the fifth sliding.
- How can you be so calm? - Krome asked.
- I just have practice! - said Yure, only appearing to be calm.
Holding his bladder was something Yure did almost all the time, but his bowels were another story. Yure had no experience in holding big poops for too long and the laxative was causing a mounting pressure in the colon that he fought to hide, in order to keep the appearence of having an okay time holding it.
Next, they went to the jungle gym. Sitting legs apart on the bars made their diapers crinkle. Yure's stiffy was bothering him, but he kept paying it no mind. He was in public, not a good place for doing that. Another perk of sitting on such bars was that it could pressure Yure right between the tush cheeks, making him hold his poop almost effortlessly. Krome was doing a potty dance, grinding his diaper on one of the bars where he was sitting. The puppy's dingy slid out of the sheath and he immediately stopped, figuring it would be too dangerous to continue. He could make quite a big bulge if he got too horny and that would be embarrassing to sport on the way back home.
Much to Krome's despeair, the diuretic was making him thristy again. Yure's laxative was also making the cat thirstier than ever... They went to the fountain to drink more. While going there, Yure felt his poop moving down and he tucked his tail between his legs, squeezing it between his thighs. His belly gurgled ominously and he sweated a little, a cold sweat, like he gets when he has diarrhea. He manages to hold the poop, but some gas escapes, muffled by the diaper and onesie.
- Phew! Close call! - he said, wiping sweat off his forehead, forcing himself to smile.
Krome then realized that Yure’s smiles were fake. He grinned.
- You need to go só badly! - said Krome.
- No, I do not! - Yure insisted, stomping his foot, being interrupted by a loud gurgle.
He held his tummy and whimpered loudly.
- Perhaps a little, but because I had laxative! - he said.
Krome smiled wider.
- It’s okay to say you need to go, Yure – he assured.
- But it is embarrassing to say it… - Yure complained.
- For you! Everybody pees and poops sometime. I’m not embarrassed of it…
- Because you are a baby! - said Yure, crossing his arms and sticking his tongue out.
Krome laughed a bit and would have laughed more, was not for the pressure in his bladder.
- Come – said Yure. - We have a fountain to dry.
They began drinking from the fountain. Krome took just a little, like usual, being parcimonious due to the challenge, but Yure got yet another balloon belly. He was not kidding when he said they had a fountain to dry…
- Done! - said Yure, sloshing about.
His belly was só full that the onesie pressed him harder now. If Yure did not relieve himself of at least some pressure, the onesie would rip…
- Okay, where you wanna go now? - asks Yure.
All that water was softening Krome’s stools. He whined and rubbed his bottom.
- Potty – he confessed.
- No can do! - said Yure, rubbing his own ass as well. - No potty break for us.
- But I gotta go só bad… - Krome whimpered, using one paw on his tush and another on his belly.
Krome was feeling his tail-hole open a bit. He widened his eyes and bit his tongue, twitching.
- It’s coming out! - he yelled out.
Yure quickly waddled, sloshing, towards Krome and firmly pressed the wolf’s butt with both hand-paws.
- No, no; it will stay in! - Yure assured.
As much as Krome wanted to win the challenge, it seemed to him that Yure was more interested in making this game go on than Krome himself, even if it meant helping his opponent. The pressure to poop being fought by both cubs was making Krome’s penis slide further from the sheath. Yure suddenly stopped and stuck both paws between his legs.
- Ah! - he yipped. - Close call!
Yure’s bladder was delightfully full and the kitten now had a full erection. He could effortlessly yiff someone his age with that. With Yure distracted, Krome's face kept distorting with effort. He gets teary-eyed.
- Poo-poo! - he yelled. - Poo-poo!
Yure used one paw to press on Krome's butt and another to hold his own tap closed. He squirmed his legs. The laxative began to bother the cat again. He farted.
- Augh! - Yure complained.
Caught off-guard, the cat started loading his diaper with fresh manure. Krome noticed.
- You lost! - said Krome, immediately releasing his bladder and bowels.
Now that he won, Krome had no need to continue holding it. His diaper seat grew against Yure's paw. Exhausted, Yure released as well, no longer fighting the poop that had already started coming out. He also pushed a bit, grunting cutely, releasing his pee. Finally, both cubs were a mess... Yure, due to his overfull bladder, flooded the diaper. The urine ran down his legs. He sighed, relieved... releasing urine for six long minutes. Krome's diaper loading went on, but it was difficult to get everything out in that position. So he lied on his back and pulled his knees to his chest. That caused the loading to happen much faster and more comfortably. The onesie could not bear the diaper growing so huge and undid itself, leaving the soaked and messed diaper open for anybody passing by to see.
- Much better... - said Krome.
- Yeah... - said Yure. - And now that I lost, I guess I gotta change you...
Yure and Krome had forgotten that they were not home, however. The moment Yure went to look for the supplies, he realized he was outdoors.
- We gotta go back home, though... - said the cat.
- Oh... - Krome blushed.
They got up and waddled back home. The waddling and the shaking waste in their diapers was exciting them further. Yure's breathing was labored and he was really perky between his legs. So was Krome. His knot was fully formed and he was ashamed of it. The bulge in his diaper was so big on the front, that it made it difficult to notice the other bulge, on the seat, where the poop had collected. Every once in a while, when someone came too close to seeing Krome's aroused state, he hugged Yure from behind, causing his diapered crotch to press on Yure's diapered butt. Both huffed at it, due to being overly sexed with the events of that afternoon. Finally, they reached home.
- Okay - said Yure, with a shaking voice. - Let us get you changed.
Krome nodded.
- I'm really horny, though - confessed the puppy.
- Don't worry - said Yure. - I am too.
Yure grabbed the supplies, now for real. Krome lied back. Yure undid Krome's diaper and proceeded to clean the puppy, first the front. He spent many minutes cleaning that erection, but that seemed like an almost endless task: every time Krome's penis was touched for too long, he would leak pre-cum, causing Yure to need to clean the penis from the pre... It was difficult and the task was arousing Yure further. If he could cum, his little marbles would be aching. Krome was having his own marble bag cleaned when he felt like he could no longer withstand the pressure.
- Yure, can we yiff after you clean me? - he asked.
- Sure... if we can make it fit... I'm really tight - Yure said, blushing.
Yiffing actually scared Yure a little. Krome was stronger and could be pretty dominant. He was most certainly not a bottom and, even if he was, Yure's penis is just so small that he would only tickle Krome. Yiff between those two never worked.
After the wiping, Yure proceeded to massage Krome's genitals with lotion and powder. The wolf's tail would not stop wagging, accidentally hitting the lotion and flipping it on the floor.
- Hey, come on! - Yure put the lotion away.
Krome giggled. Yure then pulled the used diaper away and flipped Krome, to work on that wolf butt. He began to clean. Every time Krome's tail-hole was touched, he gasped.
- Yure! - he yelled out. - Careful!
- I'm almost done! - Yure assured.
Krome's face went red, the purple, the white, then normal-colored again, with the effort of not having an orgasm during such a trivial thing such as a diaper change. But Yure was pressing all the right buttons on the puppy. Finally, another lotion and powder massage, easing Krome's feelings. The puppy was panting, his tongue touching the floor, muzzle open, exhausted, but so very hot.
- Okay... My turn - said Yure.
Yure undid his own diaper and proceeded to clean himself, resisting the friendly urge to paw himself off to a great dry orgasm. Krome could ejaculate, but Yure could not, for some reason. Once he was done with his penis, he got up and cleaned his tush. He whimpered, frustrated. He really wanted some private time... He had a few plush toys he would like to hump and even a new pillow to make love with. He called those his "pent-up pillows". Once done, both cubs were then naked and randy.
- Okay - said Yure. - Be gentle.
Yure lied on his belly and spread one of his tush cheeks. Krome rapidly mounted Yure and tried to insert. But every attempt was met with Yure yelling for it to stop.
- Painful! - Yure complained, every time.
- Okay! - Krome said, after he was stopped for the seventh time.
Krome tried to switch roles. Yure inserted in Krome, but his penis was so small, that the only thing it was doing was to drive Krome crazier for release. It indeed tickled, but on his pleasure nerves.
- What do we do? - Krome asked, in tears. - I gotta cum!
Yure whimpered.
- I'm impatient too! - Yure said, hoping it would make Krome feel not so bad.
He looked around and saw the messy diapers lying on the floor.
- Wanna settle for a diaper humping? - Yure asked.
Krome stopped crying.
- Good idea! - he said, beaming.
Yure went to the diaper pack and... realized that he forgot to buy spares.
- We are out of luck... - said Yure.
Krome shook his head, growling.
- No, no, there must be a way! - he said, stomping his foot on the floor, causing his erection to bob up and down, dripping pre on the floor.
- Okay, cool! - said Yure, trying to calm the puppy down. - We will need to use the diapers we already used this afternoon...
- I don't care! I'm gonna explode! - Krome yelled out, now hopping in place, fists clenched and eyes squeezed shut.
Yure approached Krome and soothed the wolf. Then he put Krome's used diaper back. He put his own back as well. Then, Yure went in position.
- Now, hump me like I was a plushie! - Yure said.
Krome wasted no time. He held Yure's waist, thrust his squishy diaper on Yure's diapered seat and humped like a horny tot. Yure was making the cutest sounds of arousal, like a horny squeak toy. He clawed cutely at the floor. The humping behind him was pressing his body against the floor, causing the diaper to be sandwiched between his penis and the floor. The friction of his penis in the diaper was amazing. If only he could ejaculate, perchance he would impregnate that diaper. Meanwhile, Krome's own penis was having a lot of joy inside the diaper, sliding in the mess just like he liked it the most.
Suddenly, Yure hit the floor three times.
- Switch! - he yipped.
Krome lied on his back and Yure grabbed Krome's legs, pushing them apart, then began to hump his diapered crotch on Krome's, now taking the lead. The loaded, soaked diapers were the only thing between the penises, keeping them from touching. Yure was hefty and that increased the pressure and friction. Finally, Krome said:
- I'm gonna go number 3, Yure, I can't help it!
- Can't hold just a little longer? - Yure asked. - I'm close too, but, if you release, the fun is over and I won't get my climax either!
- I'll try, but please, be quick!
Krome's marbles were boiling and the puppy was gritting his teeth, his tail wagging so fast that it fanned Yure's feet and legs. Yure kept humping, going back and forth. He knew he would be unable to finish at the same time as Krome (it would be possible, but a rare occurrence), so he just focused on making it last as long as possible...
- Yure, are you almost there - Krome whimpered.
- Not yet - said Yure, still humping.
- But Yure, you gonna break me like that, I need to release my puppy milk! - Krome was throbbing strongly and his marbles felt swollen, tender and full.
- Just try a little longer!
- I can not hold it, Yure! - Krome yelled, desperate.
Yure put all his strength in one last big "unf", causing Krome to release. His ejaculation was so much and so strong that it came out through the waistband, hitting the puppy's belly and chest. Seeing that, Yure gradually stopped his humping, sat down and finished himself by hand. Spent, both cubs lied on the floor, panting...
- Finally... - Krome sighed, wagging his tail, amidst panting.
- You bet... - said Yure, feeling much calmer.
- What now?
- We need to shower... - Yure said, sitting up again. - We just reused diapers for dry humping, that is not sanitary.
- Are all cats that clean?
- Was it clean, what we did?
Yure got up and helped Krome up. They hugged, before going for a shower together.