[Diapers, Hyper Futa, Sumo TF, 'Daddy' TF, MILF TF]

"Christmas, eh? What's so special about this day? Or is it just because you get to show us another surprise, Kogasa?"

"I bet it's because she wants to surprise us with just how much she can pack her pampers! C'mon, Kogasa! I'll fill your tummy with negativity so it'll start pushing everything out!"

"P-Please, I just want a happy night between the three of us! There's no surprise here! W-Well, beyond what I've gotten you both as gifts!"

Kogasa Tatara. A mere Karakasa Obake. A Youkai meant only for surprises, bound to the umbrella that she always carried around. By all accounts, she wasn't a very important or powerful Youkai. And yet, it was thanks to her surprise that things permanently changed within Gensokyo.

By surprising Yukari with a wedgie when she was most vulnerable, she accidently caused the borders of Gensokyo to be bent so much that several ladies from different worlds were pulled into Gensokyo. And because Yukari was left with a newfound lust, it was hard to truly surprise her to the point where she would replicate such a feat. Leaving many of them stuck here... Not that many actually minded that much, because Gensokyo was a wonderful place to live.

One of the ladies that had ended up in Gensokyo was barely even a lady. Her name was Midna, and she was a Twilight Imp, even if that wasn't her default form. She kept calling herself the Queen of the Twilight Realm, and it was kind of hard to truly see her as such. Mainly because of how tiny she was. Kogasa wasn't exactly the tallest girl in Gensokyo, and even she towered over Midna. Not that she had a problem with something like that, because Midna just used her powers to levitate to her level, or used her hair as an easy throne.

Another lady was a princess in her own right. The Ghost Princess of Thriller Bark, Perona. Originally, she had drifted towards Yuyuko's part of this world, and yet it was clear that her pranks were too much for them. So she was forced away, only to be taken in when the rain started to pour down on her. All thanks to Kogasa not wanting to leave another girl stranded without a home.

In fact, it was Kogasa's kindness that led to her ending up with both Perona and Midna as a pair of girlfriends. Both of them were enamored with the girl. Mostly because she was so much fun to tease and bully. She would squeak, she would tremble, and she would be absolutely adorable regardless of what they did. Which was why they were doing it now, even on a holy day such as this one.

"A happy night, eh? You know we always have a happy night together. So what makes this one so special, Kogasa?" Midna grinned, showing off her extra sharp impish teeth in the process. "I bet it's because you're going to show us just how much you can pack into that pamper of yours."

"And once you pack it all the way full and make sure that cute cock of yours is mushed in between all that stinky stuff, you're going to watch as we fill ours and crush you under our own. Because you love that, you diaper dork:" Perona joined Midna in teasing her dear girlfriend. Both of them loved to do this. They loved to rub it in so much. Never letting her catch a break, because it was just far too fun.

Kogasa whined as she felt her cock trembling in her diaper. Her big, white pamper... Another thing that had happened because of her attempt to surprise Yukari was a proliferation of diapers all across Gensokyo. It wasn't too bad, because Rinnosuke happened to carry a lot of them and was more than happy to treat the girls to their first change free of charge, but they were impossibly thick and unfathomably delightful to wear. Which had caused a lot of extra kinks to develop, some more depraved than others.

The Youkai's diaper started to glow with power, as part of the Triforce that Midna had brought with her started to shine on the front of it. Not only did they tease her lots and lots, but they also abused any power they had available to them. All to make their lover feel even more shame. Because they really, really loved to inflict it upon her. It made her all the more adorable.

Kogasa slowly drew breath. She could do this. She could endure. All she had to do was walk into the other room and watch them follow her so they could get their gifts. Then the teasing would stop for a bit. She could clear her head, and maybe make a few cummies in her padding. But first... she...

"...Eh? Why are there four gifts..? I only got one for each of you..." She muttered, very bewildered by the amount present under the tree. Had Santa come by, or-

"Merry Christmas!"

Both of her girlfriends cried out as they booty-bumped their own diaper butts up against her own, sending a powerful shock of pleasure through her. She couldn't stop herself from crying out in pure delight as the pleasure overwhelmed her, cumming right then and there as her eyes rolled into the back of her head...

All while her girlfriends laughed at her. Not because they thought she was pathetic. But because they thought she was cute. She really had believed that they wouldn't give her a couple of gifts. She really believed that they were that mean, not thinking of their beloved. But that's okay. It just meant that they could surprise her like this.

"N-No faaaair. I'm supposed to surprise you two, not the other way around..." Kogasa whined as she tried to cover up the massive stain on the front of her diaper, only to tremble all over as it felt like her diaper was forcibly squeezing down on her. Probably due to the Triforce that was manipulating it. A-Ahhh... She wanted to cum all over again..!

"Sorry, couldn't resist the chance to turn the tables on ya." Midna offered a half-hearted apology, all while gently rubbing her own diaper. Unlike Kogasa, she didn't come equipped with a cock of her own. She could definitely give herself one, but then she'd have to use the Triforce for something that didn't involve lovingly bullying her girlfriend.

Perona merely winked, as she grabbed one of the ghosts that always swirled around her, gently rubbing it up against her own diaper like she would a vibrator. And it definitely worked just like one. All while she blushed a little, satisfied by the sensations... And by how cute Kogasa looked at the same time. God, she could probably just cum and fill her diaper like she was letting out a waterfall straight into the padding. And she wanted to...

But instead both her and Midna gave Kogasa a kiss on each cheek. "You know we love you though." They said in tandem. It wasn't a surprise, as much as their original confessions were. Ah, she was just adorable when she was on the verge of shattering into a million pieces from their original confession...

Kogasa whined a little as she felt her cock tenting her diaper. All while she got closer and closer to cumming all over again just because of how good it felt to be kissed by the two of them. It was a little shameful that she felt this way. But at the same time, she couldn't say that she disliked how they made her feel...

"Let's save your gifts for later!" She cried out, as she tried to focus. She had picked out two especially good gifts for them. Two that she was sure would fit them perfectly. And would really surprise them too, because neither of them probably realized just how fitting they were.

She started with a very wide looking box. It was hard to tell what was inside, only that it was meant for Midna. Obviously it was hard to tell what was inside, because Kogasa loved her surprises. Yet at the same time, one should be able to reasonably guess what was inside a gift, just by holding it or shaking it a bit.

Not that Midna cared to try and figure it out. She appreciated the surprise, and immediately ripped open the box. Only to raise her eyebrow slightly as she saw the garment within. It was like a mix between a diaper and a mawashi, the waistband having a very large looking rope wrapped around it. Not only that, but the diaper was way bigger than any of the ones she wore. And super thick too.

"Surprise! It's a Sumo Diaper!" Kogasa chimed and smiled from ear to ear. "Since you're so strong and queenly, Midna, I thought this kind of diaper would suit you really well! It might look too big, but Daddy Rinnosuke assured me that it'd be perfect for somebody like you!"

Daddy Rinnosuke. That was the reputation that he had been able to amass. Maybe a little too literally, since the more girls he helped, the more he took on a fatherly shape. Not helped by the fact he was the only man in Gensokyo, and how competent he was at the role. Even newcomers like Midna and Perona had to admit that he was good at it. It was why he had a special relationship with everyone, even girlfriends like these three.

So... If he said that it was a good pick, then Midna just had to believe him. Even if she thought it was big. "Daddy really must think my Ego is big, if he thinks this is enough to contain me." But she turned it around on him. Because she knew that she was egotistical and very proud of herself. So naturally, she put on the diaper without hesitating. The only thing she did before putting it on was removing her old diaper and lobbing it into a nearby pail, all so she could wear it without restraint.

At first, all she could do was cradle the middle part of the diaper between her thighs. Using her thighs as a pincer to make sure that it didn't fall down. All while she grinned and crossed her arms. "I guess he was wrong. Because this doesn't feel like it can handle me-"

*BWOOMPF*

The violent sound of Midna's body rapidly expanding echoed out, as her very tiny imp form fattened up in a matter of seconds. It didn't matter if she couldn't fit into the diaper before, because now it was straining to properly contain her. All while the decorative loincloth on the front now displayed the full Triforce, not that it was easy to see with how it was being tented by a big ass cock...

Deep, troubled, overwhelmed breaths left Midna's body. All while Kogasa and Perona giggled together. It seemed as if she had underestimated what Daddy had suggested for her. Which prompted her to laugh as well, hands slapping against her big belly. "So he thinks I'm better as a big fatty, is that it, Kogasa?"

"Mmhm. And I think so too!" Kogasa said, as she immediately started to push her big diapered cock up against that mighty sumo tummy. It was soft. Soft, and yet tough enough to endure her initial push. "Because it's made you suuuper sexy. A big sexy Yokozuna!"  She cried out, grabbing onto the sides of Midna's new diaper as she slammed her cock into that belly pussy!

Midna let out a powerful moan as she felt her own cock growing within her diaper. Being forcibly fattened into this form had made her grow a mighty rod to match her brand new prestige, and it felt really, really sensitive. Even more so as Kogasa started to fuck her belly button. She felt weak for the very first time in her life, and yet it felt so good too. So much so that she didn't notice that her hair had been tied into a traditional wifely hairstyle. Which actually made her less dominant than before... Not that she had much to protest about when it felt this good to get a thick diapered cock shoved into her belly...

Perona huffed a little as she watched her girlfriends go at it. She wanted to be big too. She wanted to be really, really big. But she didn't wanna be fat like Midna. She wasn't the kind of princess that loved to be fat. Even if she probably did want to have her belly fucked by Kogasa.

Thankfully, she didn't have to wait long for her turn. Midna and Kogasa both cried out in pure delight as they came together, with Kogasa's cum managing to shoot off so hard that it actually leaked through her diaper and straight into that belly. All while several spikes of pleasure slammed through Midna. Somehow, someway, being fucked in her tummy had impregnated her... And it felt her trembling all over, gasping and panting like mad... For once, the teasing imp had been completely overwhelmed...

"Surprise." Kogasa giggled. It was so nice to put her girlfriend in her place. And now that she was this big, which was no doubt permanent given the way the glowing Triforce had lost its shine and now properly found itself embedded in that Mawashi, she'd always have a way to turn things around on her. "Speaking of surprises, I've got one for you too, Perona! Sorry about focusing on Midna, I just had to get that out of my system."

"Hmph. Then my surprise better be better than hers. Otherwise I'm gonna make sure you're gonna be an even bigger diaper dork!" Perona huffed. She was spoiled. But that was part of what Kogasa loved about her. She loved to dote on her lots and lots. So of course she had gotten her a big gift too, one that Perona immediately swiped from her hands once she got the chance.

Tearing open the gift, it was yet another diaper. But this one had a nice looking suit attached... Wait, no, it was a suit-like onesie. And a cigar too? Huh, neat. She always wanted to try smoking, but the others aboard Thriller Bark always told her that she shouldn't. Well, to hell with them!

Perona didn't pay much attention to the pinstripe style of the diaper, she just got her ghosts to remove her original one so she could slip into the new one. And in the process, she slipped into the extra nice and extra cozy onesie. It felt all sorts of nice and fancy, and really hugged her body in a good way.

Kogasa even helped a little, zipping up the suit-like onesie. And watching in awe as the zipper vanished. Daddy had told her that it was a very special kind of onesie, but she didn't expect it to be one that was never going to open ever again. Ehe. Well, that was a surprise in and of itself. Not that Perona would mind, ghosts didn't really feel dirty or anything. No matter how much they went in their diapers, they'd always find a way to enjoy it.

But her new look, wearing that nice pinstripe suit, wasn't really complete without her cigar. So she used Midna's excessively huge sumo boner as a hard surface to light it, before bringing it up to her lips to puff a bit of smoke...

Only to suckle on the pacifier that had found its way into her mouth. She blinked for a moment, before trembling all over as she felt her body expanding wildly in a matter of mere moments. It wasn't nearly as instantaneous as how Midna had grown, but it still took such a shockingly short time before she was overly huge...

Despite what she had wanted, she was fat. But then again, she was overwhelmed by the sheer kind of sensations running through her. And how enormous her bulge was. Unlike Midna's cock, which was proudly displayed with how strong she was, Perona had little more than a big bulge. It couldn't wedge itself free... But she didn't care.

Because it felt good. Her entire onesie felt good. That pinstripe suit that was meant to make her feel important, that onesie that made her look like a babyish take on a Fatherly mafia figure, it was tightening down on her fat form. Pressing it all into a very nice shape in the front. One hole that just begged to be thrust into.

But instead of that, Kogasa focused on the more important parts of Persona's body. Namely, grinding her cock up against her bulge. Grinning as she felt it tremble in return, while at the same time reaching past that big belly that was trying to get in her way and squeezing away at Persona's massive mammaries.

It wasn't just a cock that had grown within her diaper, nor was it that her belly had become so exaggeratedly huge. Persona had also managed to grow tits that were even bigger than her head. And those massive milkers were begging to be groped, squeezed and played with. So having her dear girlfriend surprise her by indulging her need, the one that she didn't even realize that she had, felt really good...

"More! Mooore!" Perona muffledly cried out as she felt it all wash over her. The pleasure of being huge, fat and 'Fatherly'. The pleasure of being babyish, her words stunted and muffled by her pacifier... And the pleasure of having Kogasa manhandle her and thrust against her like this. It was so, so good. She couldn't stop herself. She couldn't stop herself at all..!

This time, she was the only one that came. Kogasa was very close, and a bit of cum drooled into the front of her extra soaked pamper... But the 'Fatherly Mobster' that Perona looked like was the one that came, all of her pent up cum immediately soaking her diaper and her onesie. It was impossible to ignore the fact that she had made huge, incredible stickies... And the fact that she would no doubt make even bigger ones as soon as she had the chance...

Kogasa couldn't help but feel her heart trembling in delight as she watched Perona cum. Seeing both Perona and Midna submit like this was something that felt so, so good. Sure, it also felt good to have them tease her, but turning the tables was something she always had wanted. And the fact she could do it this easily, on a night as holy and as important to her as this one... She was never going to forget the experience. Never ever.

"Mmmphhh... Don't forget, you still need to try out our gifts, Kogasa." Midna gasped and panted, as she picked up her own. Which seemed even bigger than the gift that she had received...

Perona couldn't stop herself from moaning as she reached for her own gift as well, the sensation of her fat thighs pushing up against her bulge causing her to cum yet again. And as a bit of cum managed to dribble its way out through both her diaper and her suit, she handed the gift to her dominant girlfriend...

Kogasa didn't hesitate in opening both of them. Smiling brightly as she unveiled the matching set that they had bought. Midna had fetched her a very thin looking yet extra large maternity gown, one that would rest on her body and leave absolutely nothing to the imagination given how see through it was, and Perona had gotten her a diaper with a tally and a baby counter by it. She had eyed the two while she was getting their gifts, so they must've asked Daddy for a bit of help. Aw. How sweet.

"I love it!" The Youkai cried out as she kissed her adoring girlfriends on the cheeks, making the 'Father' and the Yokozuna both blush as their bellies trembled, which also got a pair of kisses from the Youkai. Once she had given both of them the adoration that they deserved, it was time to put on the appropriate outfit. They had gone through the trouble of getting her something nice, it only made sense!

Off went her normal diaper, which had her umbrella's eye printed on it for extra surprising purposes, and instead she slipped on the baby tally diaper. All while letting that nice gown rest on top of her shoulders as well. Currently, it reached all the way down to the ground, because she just wasn't big enough.

But that didn't last. Because as soon as both pieces of the outfit were on, the counter on the diaper started growing. And Kogasa could feel it. She could feel something popping within her. It was like... It was like her fertility was being violently accelerated, as every single one of her eggs were being fertilized in an instant.

Her belly grew and grew, as each of these overwhelmed eggs forced themselves into her womb. Growing and growing, making her look more and more fertile. More motherly. More maternal in general. Which was easy to tell, given her cheeks growing thicker and puffier and a mole growing right underneath her eye. A real trait of intense motherhood...

Kogasa pursed her puffy mommy lips as she gazed towards the two lovely girlfriends... No, her adoringly fat babies, and she couldn't help but giggle a little as she tucked her maternity gown aside, allowing those big milky mounds to be accessible. And they wouldn't have an issue either, because those udders were extra huge...

It didn't take long for Midna or Perona to latch onto those mounds. Snapping their mouths shut around those nice thick things. Slurping down more and more, their bodies trembling as all of that nice milk rolled down their throats. They loved the taste... And they loved Kogasa. It was why they teased her so much. Because of their overwhelming love...

Seeing them breastfeed from her was something that she never really could've imagined. But her girlfriend babies were just so adorable. Just so... arousing... Nnnnn... If they kept on draining her tits like this, she just might cum early. And then she wasn't sure what she was going to do. If she came while she was pregnant with dozens upon dozens of kiddies, and kept getting more and more pregnant given the rising count on her diaper, then... then..!

First Kogasa started to cry out from all the intensity that poured through her, orgasmic noises rising high into the sky. Then Midna and Perona joined her soon after, the sensation of having their bellies pressed against hers and their cocks trapped underneath her big preggo belly didn't help matters either. And then...

The loud, gross sound of their diapers expanding in the back drowned out their screams of delight. All three girlfriends messed themselves. Pushing out so much stinky sludge as they were completely and utterly overwhelmed by it all. Cumming this much while in forms that were much different from their original selves caused their bowels to loosen so badly that they couldn't close them up.

But it was okay. All three of them were used to make big stinkies. In fact, having all these stinkies rub up against their butts were causing them to cum more.. Which caused them to push more out into their seats. A vicious cycle with no end, as their diapers inflated way worse than what their bodies had.

Until all three of them were sitting in their massive diapers, stuck in pure bliss. No matter if they were fat or if they were pregnant, the three of them fell victim to their diaper kink more so than anything else... And it'd take Daddy to get them changed, given how much they had packed in there.

Only once they had been returned to normal, would they be able to celebrate the mighty number on Kogasa's diaper. The sheer amount of life they'd have to care for. Their daughters, their adorable brood. The symbol of the love that these three perverted girls shared for one another, after having met each other through such strange circumstances...

One hundred girls to love...