A C-Boi's Wet Heat

Story by draconicon on SoFurry

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A little watersports and diaper and transformation story commission.


There were many things that were different about Sigma. The king cheetah enjoyed going out to clubs in clothes that women wore; he went to his therapist for hypno-therapy that never seemed to do anything but embarrass him; and he liked to go to the store and try out different brands of diapers for himself.

Today, he was busy with the last one, going down the aisle that contained the dozens of brands of diapers that the drug store sold. They had Pamps, Puffs, and the other big ones, but also a good bit of the smaller brands as well, ones that didn't get commercials but were almost as good, if not better than the big brands. The feline had tried most of them, but every now and then, the store got a new brand in, some new thing that they wanted to see if it would sell well, and he enjoyed giving the new ones a try now and then.

It wasn't that he was incontinent, either; he just liked the feeling of a diaper wrapped around his nether regions. It was something of a comfort to him, the crinkling softness cradling his balls and cock, keeping him secure against any problems or anything that might embarrass him. Some of the diapers even were subtle enough that he could wear them under his clothes without being noticed, and when he could afford it, he tended to get those kinds, just because it meantt hat he could keep that comfort all the time.

Today, though, Sigma was more interested in the new brand he'd been hearing about. He stood by the package, looking over it. "Super Soakers, huh?" he muttered to himself, reading the front of the box curiously. It was definitely a different sort of name; most of the diapers would keep to saying that they were super absorbent or something along those lines. This one almost seemed like it was encouraging someone to wet them, and see just how much they could soak up. Definitely a different strategy, the feline thought to himself.

He already had one package of a reliable brand of diapers in his cart, though, so he wasn't going to get the big package. Shaking his head, he walked out of the diaper aisle towards the front of the store, putting a few more things into his cart before he approached the register.

A tomcat by the name of Phil waited for him, a familiar face in the store. Sigma waved at him as he unloaded the cart, including the diapers. "How are things going, Phil?"

"Pretty good, Sigma," the tomcat said with a nod of his head, scanning through the items. "Find everything okay?"

"Yeah, got everything I needed." The king cheetah nodded back towards the diaper aisle. "I saw you got a new product in today. Any chance you got a smaller package than the one in the aisle? Some sort of sample thing so I can try it out without buying the whole darn thing?"

The tomcat nodded his head. "Yeah, I think we got a few in the back. Want me to get you one and ring it up?"

"If you don't mind, yeah, please."

"Alright, hang on a second." Phil pressed a few keys at the register and stepped out from behind it, jogging off towards the back of the store.

Sigma smiled to himself as he waited, pressing a hand gently against his groin. The diapers he had on at the moment had worked for him quite well. The brand was a reliable one, and he could wear them under his clothes. However, he was willing to consider a change, considering that they didn't have quite as much absorbency as he liked, particularly if he really needed to go. They would get most of it, but sometimes a little would leak out. Not a good thing if he was in a place where he needed to look professional.

The diaper crinkled softly as he squeezed them, forcing Sigma to pull his hand back with a blush, his head darting back and forth to see if anyone had actually heard him. Nobody else occupied the other registers at the moment, and there wasn't a line behind him, so he seemed like he would be safe. Still, he kept his hands back, just in case someone came up when he wasn't looking.

He might like the diapers, but that didn't mean that he wanted everyone to know that he used them.

Phil jogged back around the corner, holding a small red package in his hands. He panted softly as he got behind the register again, putting the package down on the counter. "Sorry about the wait there, Sigma," the tomcat said with a shake of his head. "It was hidden pretty good back there."

"Don't worry about it," the king cheetah said with a chuckle. "So, how may in this one?"

"Just one," Phil said. "I thought you'd want to see if you liked just the one, and if you didn't, that way you didn't waste much money finding out."

"Thanks for that." Sigma nodded his head, pulling out his wallet. He handed over a credit card when the total came up, and quickly paid his dues, taking his card back afterward. "I'll try it out later today, and see if I like it. If I do, you can be sure that I'll be picking up some more by tomorrow."

"A little too much information there, Sigma, a little too much information there," the cashier said with a shake of his head, blushing slightly. He waved. "Have a good day."

The feline made his way out to his car, the bags in the cart light but thick, keeping the contents basically invisible. He didn't mind people in the store seeing what he got, but the people in the parking lot were a different matter. It didn't really make much sense why it was so different. Maybe it was something about it being in the open, about it being something that people saw in public rather than in a store, but that was the way it was.

He loaded up his car quickly, putting everything away, and then got inside, driving home. The road was a familiar set of bumps and bounces, often making him bounce about half a foot off of his seat before coming back down, making him very grateful for the high roof of the car and the padding that his diaper provided for him.

It crinkled softly every time he came back down on it, and he blushed a little bit as it rubbed against his groin and his rear. The insides were smooth, very smooth, and it cradled and rubbed against him in a very different way than regular underwear did. There wasn't any roughness to it, just a smooth hugging, rubbing sensation, constantly reminding him that he was wearing a diaper rather than some underwear. The crinkling was another reminder of it, the diaper constantly poofing and crinkling from the bouncing on his seat.

It all made him very glad that he didn't have any passengers with him, or roommates, considering how they would be hearing this as easily as he did, not to mention seeing his reaction as he slowly started getting a tent in his pants.

He blushed as he realized that he was getting hard in his diaper, and shook his head, resisting the urge to step on the gas and speed up the rest of the way home. Now that he was aware of it, he could feel the way that the smooth insides of the diaper cupped his cock, rubbing up against it, squeezing it tightly with the compact design of the diaper. By this point, he was probably leaking pre, though he couldn't quite tell, due to the way that the diaper soaked up minor liquid spills without trouble, but he was pretty sure that he was leaking. Considering how good it felt, Sigma would have actually put money on it.

By the time he reached his driveway, the king cheetah was almost panting to himself in excitement, and was half slumped over his steering wheel, shaking his head a few times. "I really...need to find a better route home," Sigma muttered to himself, taking a few ragged, deep breaths to steady himself after the wild ride. He patted his bulge lightly before getting out of his car.

Unlike some of the people in his neighborhood, he didn't have a garage, so he was forced to park outside. That wasn't a big deal, normally, but it was a little embarrassing on the trips back from the drug store when he made diaper runs. He had to hurry back and forth from the car to the house several times, making sure that the diapers in the trunk weren't visible on the way in. When he had perishable stuff it was even harder, because he had to take that in first and hope that the neighbors didn't look outside and see a package diapers in the back of his car between the trips back and forth.

Thankfully, this was a smaller load and he could take it all in at once. The door was a little tricky to get open with his arms so full, but he managed it after a few seconds of juggling things around. He smiled as he stepped inside, shutting the door behind him with a little sigh of relief. "There we go," Sigma muttered as he reached the kitchen, putting the bags down on the counter.

Normally he would put everything away first, but today, there was nothing that really needed to be put away, so he could leave them alone and try out the new diaper. He pulled the red package out of the bag, carrying it under his arm out of the kitchen to the bathroom. He shut the door behind him - out of instinct rather than necessity, considering he lived alone - and stood in front of the mirror as he took off his clothes.

His body was pretty good looking, he thought. Like most felines of his species, he was rather lean, though not to the point of being all that muscled. It was more of a body type that leaned towards skinny naturally, making it harder to gain weight. Lithe was perhaps the word, he thought to himself, looking over his smooth stomach and arms. His chest had a little growth, some muscles in the pectoral area, and his arms weren't weak looking, but he wouldn't have put himself as a model or anything. On the good looking side of average, he would say.

Of course, wearing a diaper made things look a little different, a little strange. At least, that's what Sigma imagined most people would think. The white of the diaper contrasted heavily with the dark gray of his fur, looking rather out of place, and the paw print on the front was the only thing that kept it from looking exactly like something a cub would wear. It was smaller, more compact than most diapers, but still had the poofy sort of stuff in the back that made it bulge in most clothes. It compacted itself under clothing enough to keep it from being visible, though as the ride home had reminded him, that didn't mean that it would be silent.

He still had quite a bulge at this point, and he blushed a little bit as he rubbed the tent in the diaper. His cock throbbed under his hand, begging for some attention, and he was tempted to take off his diaper and just rub one out. There was even the temptation to keep the diaper on, stroke himself through it until he came into it, save a little mess for later by using the diaper before taking it off.

The temptation was appealing enough that he almost gave into it, but he held himself back. That was part of the testing for the new diaper, after all, and he wanted to make sure that it could handle all he might want to do with them.

Looking down at the red package, he placed it on the counter and slowly pulled it open. It was a plain cardboard package, so it came apart pretty easily with his tugging. He tossed the pieces of the package into the garbage bucket at the side of the toilet before turning to look at the diaper.

It was a little bigger, a little thicker than the one that he wore, and a bit wider at the point where it went between his legs. Obviously it would be a little harder to wear under his clothes, but it would still be compact enough to wear as a day to day diaper under his public clothes. That was an immediate plus right there. He might need to get used to the way it would spread his legs apart a little bit when walking around, but he didn't think that would be a real problem, particularly not after about an hour or so of wearing it.

Stroking a finger along the inner material, the feline felt rather impressed by how smooth and soft it was. Most of the diapers that he found were either porous to allow the liquid to slide down into the absorbent layer - something that made them a little rough against his groin and rear - or were of the latex sort that held everything inside, but allowed things to dry against his fur and skin. Some were good, like the ones that he was wearing now, at doing both, but by and large they weren't comfortable and functional. If this one could perform both functions, he would be really impressed.

Checking the edges of it, he found that it was a sticky tie one, tabs that would hold it up rather than pins. That was another plus, Sigma thought. That way he wouldn't have to worry about sticking himself every time he put on a diaper. And the tabs looked like they were pretty sticky and strong, too; they'd have to be, if this thing was supposed to be able to soak up massive amounts as it claimed. Diapers could get very heavy after they were soaked in liquid, as he had found out, and without good sticky tabs, they could fall right down from one's groin, snapping open and spilling all that pee - or other stuff - all over the place. NOT something that one wanted to happen out in public.

Overall, the diaper looked like it could be a very good one. He was impressed at the quality, particularly for a new off brand that didn't put out commercials for itself. He could feel his cock throbbing still inside of his usual diapers, and he pulled them down before the temptation to get off in them could get stronger, dropping the diapers down to the ground and kicking them off to the side. A little wet spot on the inside confirmed that he had been leaking into them, he noticed absently.

As quickly as the old pair went down, the new pair went on. Sigma felt the softness of the insides against his balls, and he actually moaned a little bit at the soft, almost pillowy feeling of the inside against his orbs. They were cradled and held gently, rubbed and stroked in an almost teasing manner, even as they were pushed flush against his groin. The diapers were rather tight, he realized, pressing both his shaft and his balls against his crotch with a good deal of pressure, almost as though they were trying to push his genitals back inside of his body. It was slightly uncomfortable at first, but as he got the tabs stickied in place, he started to get used to it.

After the first couple seconds, it was actually kind of enjoyable, and the way that it showed him off was actually kinda fun as well. The feline posed in front of his mirror, showing himself off, seeing how his bulge showed through the diaper. He patted it a few times, feeling the pillowy soft inside rub against his cock, and he trembled softly, almost purring at the pleasurable feeling. It took all of his willpower to not keep grinding his bulge against the inside of the diaper, and he did have to grab his stroking hand with his free one, pulling it away from his groin before he took it too far.

Taking a couple of deep breaths, Sigma forced himself to think of things that made his cock go down. Train wrecks, horror movies, and other things that were most definitely not arousing filled his imagination. He forced some rather gross things through his imagination, and like usual, it worked, making his cock go down rapidly. The bulge in front was still visible, just from how tight the diaper was, but it was much reduced from what it was at first.

"Alright," Sigma muttered to himself, patting the front of the diaper lightly, careful not to touch his bulge. "Let's see just how much of a Super Soaker you are."

Through the whole day, the feline had been saving up his bladder's contents, and that hadn't been easy after a cup or two of coffee. But after hearing that there were new things in the drug store, he wanted to make sure that he had a hefty load of urine to try this out with. After all, if it could take a full bladder, or an overfull one, then it could handle everything else he might throw at it over an average day.

Sigma let himself relax, and his bladder rapidly started emptying itself. Almost immediately he felt the warmth of his piss soaking against the front of the diaper, but almost right afterward, the liquid feeling of warmth disappeared, leaving only the warm pillowy feeling again. He was a little shocked as he felt the diaper absorb his piss right off the bat, barely a second of feeling it against his cock before it was soaked up.

Wanting to really test it, Sigma not only relaxed his bladder, but pushed on it, forcing his piss out at a faster rate. It wasn't just a little flow, it was a spray, and he watched a small spot of liquid appear through the front of the diaper. He touched a finger to it, testing to see if it was moisture pushing through or just a bit of a warning, but it was completely dry. A warning, then, that the diaper was wet. As if he couldn't feel the warmth against his crotch that told him just that.

He could feel the splashing of the piss inside of the diaper, could feel some of the moisture running down his cock and around his balls after the first half of his bladder's contents had been absorbed, but surprisingly the diaper continued to soak up his waste. The piss barely had the chance to warm his balls before it was soaked off of them, leaving them dry but surrounded by the warmth of the diaper. He moaned softly, feeling his cock starting to harden in mid-piss despite all he did to try and stop it.

That didn't stop him from fully draining his bladder, though. The slight wet spot on the front of the diaper spread a bit, but no matter how hard he pushed on it, he didn't feel any of the piss leaking free from it, not pushed out against his fingers or pushed back against his fur. It was almost bizarre how dry it was keeping him, as though the inside of the diaper was sucking it away and draining his piss away to some bizarre invisible container. He might have gotten his fur a little wet, but no sooner had his cock, or his balls, or his crotch fur gotten wet than it was dried again, better than any towel or toilet paper could have done.

When he felt his bladder empty completely, and still felt quite dry, Sigma shook his head in astonishment. "Well...that's just amazing," the feline muttered to himself. He sat down on the floor. "Let's just...make sure that it can keep all of it in if it gets some pressure on it."

His hands roamed over the discolored area on the front. He felt no moisture against his fingers, could not even smell his piss, but it was a good marking to tell him that he needed a change. A good feature, he thought. If he didn't see that, he might not even think that he had wet himself in the diaper. The makers for this kind of diaper really knew what they were doing.

As he applied pressure to the discolored areas, he kept his attention focused on his groin, testing and prodding every part that seemed to have absorbed his piss. Most diapers would leak at least a little bit of urine from them if they were pressed hard enough, releasing their contents for a bit even if they absorbed it again a few seconds later, but these Super Soakers didn't even do that. Even when he pushed against them hard, compressing them to half their original size, he didn't feel anything but warmth against his cock, balls, and crotch.

He shook his head in amazement. "These are GREAT!" he said with a wide grin. "These are definitely going to be my new diapers of choice."

The pressure that he'd placed on the diaper had stroked his cock a bit, and encouraged it all the way back to full hardness. Normally, he would have taken off the diaper and changed it out, stroking himself between the changes, but considering that the Super Soakers had taken a full load from his bladder, he figured that they could take the - comparatively - minor spill from his balls as well.

He pressed his hands against his bulge, rubbing it through his diapers with a moan. Rocking back and forth, he could hear the crinkly sounds from the back of the diaper, could feel it shifting around behind him, compressing and expanding, compressing and expanding, the soft insides cradling his rear, pushing his legs apart a little bit more, almost caressing him with every move. It made him moan softly, his hands rubbing faster against his bulge, more eagerly, trying to push himself further, faster, wanting to cum in the diapers.

But....

But there was something wrong, he realized. He opened his eyes, looking down at his crotch. The bulge that his cock had made earlier had been huge, almost like his cock had been pointing forward, threatening to push the waist of the diaper out so he could look inside. His bulge was still fairly big, but it wasn't that big now, even though he felt harder than he had earlier. In fact, as Sigma stroked his bulge through the diaper, he could swear that he could see it....shrinking.

His hands shot from his bulge to the sticky tabs, but they were stuck tight. He grunted, tugging at them, pulling at them, but they were stuck good. Even when he let out his claws, trying to tear at them, it didn't make so much as a slight scratch. The diapers resisted everything he could do to them, even when he tried to shred the front of them open so he could get a look at what they were doing. It was like they were made of some super material, resistant to cat claws and adult strength. Momentarily he considered a knife, but he didn't have a good angle to try and cut the diaper off, and he wasn't sure where his scissors were.

So he was forced to watch as his bulge grew smaller and smaller, the round base of the tent - where his balls had been completely visible through the snug material - disappearing in seconds as both the length and width of his cock started to disappear as well. Sigma pressed his hands against where his balls had been, expecting to at least feel his balls through the material if he pressed hard enough, but there was nothing. Absolutely nothing. It was as if his balls had completely disappeared.

In their place, he felt something different. His crotch almost seemed to be opening, as though someone was unzipping something. That was almost exactly how it felt, for that matter, as though someone was unzipping a hole between his legs. His fingers prodded at it, feeling it as it spread. He couldn't stop himself, and kept feeling it as it appeared, unable to actually look.

Suddenly, he felt the diaper slip inside the new opening. The feline gasped at the feeling, almost like the time when he had put something inside of his ass, but better, as though he were mixing stroking himself and the anal penetration into a single sensation. It both amazed and scared him, and he pulled his fingers back from the diaper, almost afraid to try anything else.

All the while, the bulge of his cock continued to shrink, but even as it slid away in size, the amount of sensation, the level of stimulation, seemed to go up. The smaller it got, the more sensitive it got, and despite the situation, Sigma found himself moaning as his shrinking cock rubbed against the inside of the diaper. He panted in need, his hips thrusting forward before he could stop himself. The motion rubbed his disappearing cock against the diaper, and provoked another buck of his hips, and then another, and another, until he was humping the air, thrusting against an invisible partner in desperate need for relief.

Barely able to keep his eyes open, Sigma watched as the bulge slowly disappeared. It steadily grew smaller, and smaller, until there was no tent left in his diaper at all. Scarcely more than a second after that, he felt his body explode with an immense orgasm. His eyes flew open wide, and he gasped, a muted shriek of pleasure leaving his mouth as his entire body shook. He fell back against the floor, shaking and spasming from the overwhelming pleasure spreading through his limbs. Toes curled and fists clenched as he had the best orgasm of his entire life, his crotch tingling as he enjoyed himself.

Slowly, Sigma pulled himself back together. His head was fuzzy feeling, and despite that massive orgasm, his crotch still tingled with need, his body feeling almost like it did when he edged himself for a few hours, like it was desperate for sex, like it would do anything to get a little satisfaction. He panted despite not being tired, and it took all of his willpower to not immediately shove his hand down to his crotch.

Rrrrrshk!

The sticky tabs for the diaper ripped free, and the diaper fell open. No liquid splashed around - for which Sigma was thankful - but now he could see what had happened.

The king cheetah's eyes went wide as he realized that his cock was completely gone. Not even a hint of shaft or orbs remained. In its place was a simple slit, a slit that he had seen on many other people but had never imagined he would see on himself. A pussy, bright and pink and eager, wet and dripping with juices. Even he could smell his arousal...her arousal...he wasn't quite sure what his gender was anymore.

In curiosity and arousal, one hand slowly started to go down to his new pussy. It shook, and he trembled, as it got closer and closer to his strange new equipment. Question after question popped up in his mind, echoing around in his skull. How had this happened? What did he need to do to change back? Why did his pussy feel like it needed cock after cock after cock inside of it, and now?

All the questions disappeared as his fingers touched his new clit. His eyes snapped open wide, and his mouth opened in a silent gasp. Rubbing it lightly produced sparks of pleasure he had never imagined, rivaling the power of that orgasm he had just gone through, the one that had almost knocked him out from just how good it felt.

Fingers wet with pussy juice, he rubbed his clitoris in rapid circles for a few seconds, panting as the pleasure built rapidly. It reached higher...higher...

Then he stopped himself, yanking his hand back. His body protested heavily, begging him to continue, but Sigma ignored it, shakily pulling himself to his feet. Everything, every part of his body burned with need, and his...pussy...seemed to beg him to reach down and fill it with his fingers, but he pushed the need to the back of his mind, slowly pulling himself over to the mirror again, spreading his legs slightly as he stood in front of it.

Sigma had been around enough female felines to know the signs of heat when he saw it. His pussy was slightly open, dripping with his juices, and the burning need that he felt was just like the others had described. Just looking at it, the part of him that was still male wanted to reach down and finger it, fuck it until it squirted all over the place, and it took all of his willpower to tell it to wait. Not to stop, but to wait.

Pulling his eyes from his dripping crotch, he looked around the rest of his body. There were no other signs of female-ness, no breasts, no sudden flaring of the hips, no enlargement behind him. There were no changes to his walk, he saw, though he stopped moving quickly when he realized how it made his thighs rub against his new equipment, shuddering as he came to a halt, his juices running down his thighs, soaking them with the signs of his need, his arousal.

So...he was a cunt boi....It could be worse, he thought to himself, though he felt he should be at least a little frightened. It was probably all the lust coming from his pussy that was stopping him, he thought, but that thought was pushed away as his fingers finally stopped listening to him, burying themselves into his new slit.

The pleasure that burst through his mind wiped out all thought, and he fell to his knees, digging his fingers deeper and deeper into his pussy, desperately trying to get some relief to the burning heat between his legs, even if he knew it would only be temporary.