[Diapers, Diaper Use, Weight Gain, Transformation, Sumo]

"Haaah... W-What I wouldn't give to get two cuties like that all over me..."

Sitting by his lonesome in the school library was a rather pudgy dusky-skinned boy with sandy blonde hair covering up part of his eyes. He barely fit in the school uniform, and he looked like he could use more than exercise to really get rid of the vibe that was radiating off him. Especially when he held one of those naughty books in his hands...

His name was Jinn, and right now... Well, as much as he was trying to be quiet, it was a little hard to do so with the crinkly sound echoing out as he fidgeted around in his seat. That crinkly, dangerously depraved sound...

"Oi, desert dumptruck. Was what you told me last week true?"

It served to lure in those that probably wouldn't treat him too kindly, causing Jinn to gasp and slam his book shut. Panting and sweating as he turned around, hushing the person that had called out to him. Even though he was the only one in the library, that didn't mean that the rules shouldn't be followed...

Though his attempt to hush the loud voice was quickly rendered null and void as he saw who had come to visit him. One of the most athletic students in the whole school, Jack. Who... was a surprisingly nice soul despite how much he looked like a stock jock. At least, that was what he thought about him ever since he didn't blame him for still being in diapers. Of course he'd know where he was.

"Better be true. I wanna get my wish granted, y'know, hun? You reaaaally sure the diaperdork can grant it?"

At his side was... Well, a girl that was a lot less kind than the big muscly blonde. Ann was her name, and she was the head cheerleader at the school. As a result, that meant that she was practically always glued to Jack's side, even if Jinn didn't think she deserved a kind guy like him. Her soft ocean blue ponytail did nothing to compliment the resting bitch face almost always on her face... Wait, actually...

She did seem a little nicer today, at least based on how she was looking at him. It was less disdain and more... curiosity. Probably because of what she had been told. He thought that he had told Jack not to tell anybody about it... But the two of them were so close that he also didn't blame him for telling her...

"...Yes, it's true." Jinn said, clearing his throat as he did his best to sit bow-legged on his chair. But the diaper that was doing its best to stay within his shorts was giving him a real difficult time there. "I know a way to grant wishes. I just need to hear it from both of you, and then... Well, you know. I think you've heard of Genies and all that before."

"Yeah, but you're not blue." Ann said, prompting Jack to elbow her slightly in response. "What? ...Ohhhh. Right. Sorry, diaperdork." She did sound a little apologetic over what she had said. Even though Jinn could tell where she had gotten the idea from.

Jack sighed a little. "Read and watch too much of one thing, and you start thinking everyone's like that. You know how it is, don't you, desert dumptruck?" Despite the teasing nickname, he definitely didn't mean any harm with it. If anything, he thought the way the diaper enhanced the nerdy boy's butt really made him shine...

Just thinking about how he had gotten the nickname prompted Jinn to fidget a little and blush. His shorts creaked in response, begging to be freed from this proverbial hell. "Yeah... Yeah, I do, Musclehead." He muttered in turn, smiling as he began to laugh a little awkwardly.

A laugh that was matched by his jock friend, with Ann shrugging her shoulders. Men. "So, diaperdork. No catches? No nothing? Just a wish and then we do one favor for you? That's what Hun said, and since you two are clearly like peas in a pod, I trust he said the right things."

"Mmmmhm." Jinn nodded, as he pushed his glasses up slightly. If the fringe of his hair wasn't long enough to hide his eyes, then the glasses occasionally being too thick to look through certainly did. "Just one wish, and then a favor. That's all." He said, trembling a little more. He wondered what they might wish for, and it was making him more and more excited...

The musclehead thought for a brief moment, grinning a little smugly like you would expect from a jock like him. "Then let's try this. I wanna be the biggest and strongest guy in the whole school! That ain't too crazy, right? Just a lil' bit of the ol' up n' out?" He even gestured to show how big he wanted to be... Almost big enough to take up an entire couch with muscle... Bit ridiculous, but Jack was a ridiculous kinda guy with how nice he was.

"I wanna be with my Hun forever! He can get other gals, or even guys if he swings that way, but I wanna be with him aaalways!" Ann wrapped her arms around the big guy, kissing him on the cheek and getting him to turn several shades of red in quick succession. Yeah, despite being a bit of a bitch, she really did seem to love him...

Jinn nodded and panted. "R-Right. Just... Hold on a moment, and I'll grant your wishes..." He muttered, a soft moan trying to work its way out from his lips. He had to concentrate. If he let loose now, both of them were just gonna leave and he'd be down a pair of friends. He just had to concentrate...

Both the Jock and the Bitch watched as the dusky nerd pulled his incredibly tight shorts down, freeing part of his stomach in the process given how far he had pulled his shorts up. But that wasn't the thing that captivated them...

No. The thing that captivated the two of them was the utterly insane bulge that practically exploded out in front of them. Sure, it was trapped within a diaper, but it was almost as big as the nerd it was attached to.

One moment, the two of them were watching eagerly and patiently. The next, when their eyes locked into that bulge? Out went the concept of free will and being able to think for themselves. They were utterly struck by such overwhelming cockshock that they were completely mesmerized by the bulge...

"H-Haaaahhh... S-Sorry, Jack. Y-You and Ann really should know better... B-But I'll make you two happy still, don't worry..."

Jinn was struggling to keep himself from exploding further now that his cock had been unleashed. This destructive Djinn cock that was known to break minds to make it easier to grant wishes... It was part of why he wore these diapers in the first place...

If it was out in the open, barely constrained by the clothes he wore? He'd either get mocked by those that were able to resist it, or he'd have it covered in kisses from the moment he woke up...

The dusky nerd pulled a bit on his waistband, allowing a rather large looking ring to peek out. A golden ring that was glowing with all sorts of power...

Power that escaped his diaper, and shot into the two mesmerized spectators. Not too much of it, as he quickly let go of his waistband to ensure that the two wishes didn't go out of control. But just enough for the two of them...

It took not much more than a second for the two mesmerized lovers' clothes to shred apart, leaving their well-kept bodies completely naked... Though as much as it was nice to see Ann's head-sized tits and Jack's broad buff chest, neither would be sticking around for long. And neither would their respective genitalia...

Because the scraps of their clothes quickly snapped together into a brand new form, one that wrapped around their respective waists. Big, thick, white diapers. Just like the diaper that Jinn was wearing, though theirs were maybe three sizes bigger than his...

For a good reason. Just as soon as the two of them were equipped with their brand new diapers, their bodies started to rapidly expand. Layers of fat after fat began to pile onto them, ruining the carefully-trained bodies that they were maintaining...

But they didn't need to keep their bodies trained in that fashion. After all, Jack had wished to be the biggest and the strongest. And the way that his gut rapidly started to expand outward, to the point where he could probably fill up a king-sized bed all by himself, and take up a couch all on his own even before factoring in the extra puffy diaper? It was going to make sure he lived up to the wish that he made...

And since Ann wanted to be with him forever, it was only fair that she was right behind him. Growing just as big, if not bigger... Even her tits were able to keep pace, now looking more like huge pillows rather than being the size of her head. Honestly, he could just latch his lips on right now, and-

Jinn gasped as he could feel his cock trembling hard enough to let out a wet squelch. He had climaxed, but that was okay. The diaper would soak it up. But at the same time... He really needed to hold it in. Just so he could get the full experience...

While yes, the two of them were basically two flabby mountains at this point, they still had one last change to go through. After all, Jack wanted to be the strongest. And since he was already one of the best athletes in the school...

All that he needed to show off his new fat strength was a sport to match. Which was why the sound of something locking around his waist echoed out, matched by an equally strong locking sound around Ann's waist...

While the two of them couldn't look down yet, Jinn could see what had happened. Two strong, magically-locked Mawashi were wrapped around their crotches and their waists. Ensuring that they were perfectly ready for their brand new sport, one they looked absolutely perfect for as their hairstyles adjusted into a pair of matching yet different colored topknots!

Sumo Wrestling..!

"H-Haaahhh!"

Jinn's next orgasmic cry was the one that snapped Jack and Ann out of their respective trances, both of them panting due to their brand new weight. Though according to the memories that were going through them...

This was how they had always been. And the way the two of them shot grins at one another was just as refreshing. The kind of intimate bond that only rivals could share...

"Looks like we've got a new way to prove who's better, Ann. Look at our lil' guy, he's practically begging for it." Jack said, as he began to turn away from the exhausted fatty who was now barely three times his size... Outside of that delectable cock that was now bumping up against his plush padding.

Ann laughed as she turned around as well, bumping that diaperbutt up against the other side of Jinn's thoroughly soaked diaperdick. "I'm always the best, Jack. And our Hun'll prove it once he gets another taste! Isn't that right, Huuuun?"

Jinn could barely register what they were about to do. Even though it was what he had dreamed about. Even though he knew he would love it..!

"DOSUKOI!"

The sound of their fight unfolding was loud. But not because of how they were slamming their respective diapered derrieres against each other, with Jinn's poor shaft stuck in between as it was swallowed whole by all of that plush comfort...

No. The reason it was loud was because of the brassy onslaught that was their guts erupting. Two mighty torrents of stinky farts erupted from their loose and well-trained holes, inflating their diapers even more and ensuring that the dick that had helped them transform like this got even more pressure on it, to ensure the absolute best sensations...

Only for the farts to merely be the opening act. Equally potent torrents of pure filth flowed freely, filling up those diapers in mere moments. Once again crushing that massive cock in between it, all thanks to the way these two diapered sumo wanted to prove themselves to the boy that they had always loved with all of their sumo-filled hearts.

Jinn had gotten what he wanted. Having his cock trapped in between two massive diapers. Having his shaft absolutely crushed, given everything that it could ever possibly want. And what could he do when his cock was getting this much love.

All he could do was scream in pure delight. As his own torrents flooded outward. Both his cum, quickly causing his diaper to inflate from the sheer amount of seed he was proverbially impregnating his diaper with, and his filthy waste ensuring that he was going to be nice and cushy while getting the best diaperjob he ever imagined...

He had granted their wishes, and turned them into the strongest and biggest sumos in the school. Eternal rivals, tied together through their favor...

To grant his wish of having two perfect lovers. Lovers that were already granting his wish, and then some...

Hhaaaahhh... W-What a wonderfully fat ending..!