[ABDL, Filth, Futanari, Diaper Use, Pee, Breeding]

"So, the Baby of Betrayal's thinking of bonding with the Fae Baby? You really think that's a good idea, Mordred?"

"Yeah, I do. What, you have anything against that, Caenis? Or are you jealous I'm adding another girl to the harem?"

"Harem... Family?"

"Uh. Yeah. Family. Right. Sorry, Fran."

Chaldea was a mess. And it wasn't exactly because of all the diapers that still needed to be taken out and incinerated, though that definitely didn't help matters in the slightest. No, the reason why Chaldea was a mess was very simple, and happened to coincide with the mass of diapers.

The Master of Chaldea was a pervert beyond compare. And thanks to that, every single Servant that was summoned ended up in diapers. Completely and utterly dependent on them. It was something that she was able to inflict upon them thanks to how she had already perverted her dear Shielder, who was tied to the summoning system. And it wasn't uncommon to see said Master with the Shielder on her lap, padded cock pressed against a dirty padded rear when one was first summoned to this facility.

Mordred certainly remembered that sight. She also remembered how her Master had broken her in and made her fill her diaper for the very first time. She could remember it vividly, and it made the cock in her diaper tremble. She wanted to blow her load, just from thinking about something that... depraved...

"Family." The darker-skinned Lancer at her side, Caenis, laughed a little. Especially as her own cock, more equine in nature and thus abnormally larger compared to Mordred's much smaller 'sword', started to tent her diaper even more. "I guess that's what you can call us. Glad to have you as my wife, Mordred."

Mordred glared back at Caenis. "Oh really, you call yourself the husband, when you're the one who kept cumming as I pushed my dirty butt up against you? Maybe I should teach you a lesson and remind you who's supposed to be in charge." Small sparks of lighting flew between the two padded girls. Even though they were lovers, they were still tomboys at heart.

Fran watched and just stared down at her own padded cock. Which was even bigger than Caenis'. All thanks to her creator making sure that she was more than equipped in case of emergencies. Though Master managed to make her cock a lot more useless by trapping it in padding and making her addicted. Even now, she idly stroked that padded thing. Squirming a little as a bit of cum started to drool out from the tip...

Mordred honestly couldn't really believe how she had made them her lovers. She just... Asserted her dominance over them, even though she had a much weaker cock. Caenis ended up cumming uncontrollably when forcibly pushed up against her dirty diaper, and Fran just humped that mess as much as she could. It was kind of humiliating that she'd make them her wives that way, but... Eh. It's not like her Father was any better, given what she heard about her parents messing around with different contests at the Master's insistence.

Though right before she was about to go fill her diaper and force Caenis to submit again, a howl echoed out. One that broke up their little argument, and prompted Caenis to grin wildly as she heard it. Mordred, meanwhile, felt her cock shrinking a little. Was she... fearful..?

"What's the matter, Mordred? Scared of the big bad wolf?" Caenis snickered, before letting out a yelp as Mordred ended up spanking her ass. An act that made her stomach let out a violent growl in turn. "C-Careful, I still haven't gone potty yet. Don't wanna waste it before it's ready for Fran."

Fran didn't really pay attention to the other two, as she basically ran right towards the howling sound. Turning the corner and smiling softly as she saw the girl they had been hunting for. "Big dog..." She said, pointing towards the blonde that was currently stuck within her own room.

Mordred walked to Fran's side so she could peek inside, before her eyes started to bulge a little. She knew that Barghest was big, especially since she resonated with the concept of her brother, Gawain, but... She was bigger in basically every area that she could've imagined.

Barghest was a huge woman. With huge breasts. Huge muscles. And a huge smile, whenever she was happy. But besides the tits, the only thing that the trio of lovers could really pay attention to was the massive erection in her diaper. A diaper that was equally massive, practically taking up most of her legs and keeping her grounded at most times to make sure that she didn't cause any problems.

The blonde Fae was doing her best to behave. But it was hard to not touch herself and play with her cock. Master had trained her extremely well. Leaving her cock unfathomably sensitive. But if she started to cum, then she'd just make a massive mess. And if she made a massive mess, then she'd have to wait for Master to come by and help change her. But if she kept it all in, then Master would let her fuck her..!

"M-master... Maaaaster..." Barghest muttered with a big red blush on her cheeks. She wanted to cum inside Master. She wanted Master to tell her that she had been a good girl. And that filling her diapers was totally allowed. She wanted so much. And it was that want that completely blinded her to what was going on around her... Even though she was currently being watched, which would've been humiliating at any other time.

Mordred blushed a little as well. Her cock was tenting her diaper once again. So what if the Fae had let out that worrying howl? She was really hot. And she was actually super cute too. She never thought such a big and strong lady could look so adorable. She... She actually kinda wanted to help her with her cock.

"Isn't there something we can do?" Mordred muttered as she gazed at both Fran and Caenis. They knew her better than she did. So maybe they had a good idea. Something that could help the big dog..!

Caenis was surprised that Mordred would actually ask for her help, which then prompted an even bigger grin to work its way onto her face. "Something... Oh, I know something alright. But it might be a bit too much for you." She licked her lips, as she strutted into Barghest's room. Motioning for Fran to join her, so that they'd be able to carry this out a lot easier. Better to work together than to just stand to the side.

Fran's eyes lit up slightly as she realized what Caenis was doing. And she grinned and giggled as she eagerly skipped over to Barghest's side. Thank goodness that she was down on her knees right now. That made this a lot easier. This way, she really only had to do one thing instead of several difficult steps!

Barghest panted and gasped as she tried to fight against her erection and her need and want to breed her Master. Though even with her mind being stuck in a pleasure-filled haze like this, she was starting to notice the two that were approaching her from the side. She recognized them too. It was... Fran and Caenis..? Wait... Wait..!

"S-Stop, don't..!" She knew what they were doing. They were going to make big messes! And if they made big messes, then she wouldn't be able to keep control of herself! She'd catch whiffs of their stink, or they'd mush their butts up against her face. And then... and then..!

"Push, Fran! PUUUUUUSH!"

But it was already too late at that point. The Lancer and the Berserker forced their padded posteriors up against Barghest's face, causing the oversized dog to moan. And that was just the start, as she could smell the filth that was pouring out from both girls. Filth that was so pungent, so overwhelming, so potent..!

Mordred watched as both of her lovers started to pack their pampers. Not just a little either. They were packing them as much as they could. Letting all that filth out as their seats quickly started to sag from all the poopy that was rushing out. And all she could do was watch, nervously squirming as she felt her crotch tremble and squirt a little. Seeing her lovers dominate somebody else like this, when she wasn't the one being dominated... Or the one doing the dominating... It was a little... Mmmh... No, focus, Mordred...

Thankfully, her own haze was interrupted by Barghest letting out an overwhelmed howl. As she came right then and there. The feeling of poopy pampers pushing against her face, the feeling of everything that she had tried to suppress slipping away... It was far too much for Barghest. Which was why she was currently cumming and letting everything squirt out into her diaper. Every little bit of cum that she needed to drain from her balls...

But it wasn't just cum that was being released into that diaper. It wasn't hard to make out the sound of her brassy bowels releasing their contents either, nor was it hard to notice that the back of her diaper was growing more and more brown with every passing moment. Which made the pungent odor start to flood its way around the room. All while mixing together with the stink that came from the front of her diaper, consisting of a mixture of sticky and fertile cum with the very dirty pee that had been pouring out from her hole at the same time as all of that cum...

Mordred just watched as Barghest gave in and filled her diaper in every possible way. She felt... relieved. The oversized pupper wasn't going to be bothered by her restraints any longer. She could just... Enjoy the fact that she had been able to cum. And maybe-

Fear filled her heart once again, as she noticed a dark shadow on Barghest's face. And she noticed the delightfully devilish grins on both Fran and Caenis' faces as well. Oh. Oh no. Just the sight of that was enough to make her cry out in fear, and for the back of her diaper to very quickly grow extra brown as she soiled herself.

"BREEEEEEEEEEEEEEEEED!" Barghest roared as she forced herself out of her diaper. She'd have to get a change after this, but she had emptied out her bowels completely, so it wouldn't be an issue. Especially as she leapt right onto Mordred, pushing her to the ground as steam poured from her mouth while she breathed in and out...

Mordred, trembling as she was pinned to the ground by Barghest, definitely noticed something else. Namely the Fae's Black Rocket. A thick black shaft with red veins running along it. A shaft that was so big that it was no doubt going to break her. And... And it made her tent her diaper in anticipation.

Barghest howled again, as she slammed her cock straight into the diaper in front of her. Piercing through Mordred's protective padding with her overwhelming cock, howling and crying out in pure delight as she felt that tight pussy wrap around her mighty rod...

All while the 'Baby of Betrayal' was forced to let out moan after moan as she felt the horrendously powerful thrusts slam into her. She didn't expect that it would feel this good to be bred. Especially by somebody like this oversized pupper. And yet that's exactly what it did. She... She didn't know what to think, nor was she really aware of what she could think.

Thanks to how intensely the oversized pupper was pumping into the extra pooped pamper packer, Caenis and Fran got a chance to sneak over. All while letting their own cocks free from their diapers. Keeping it mostly on them so they didn't make any messes, they clung to their beloved Mordred, and adjusted themselves so they wouldn't get slammed away by Barghest's furious thrusts...

Right before joining in on it. Slamming their cocks into the same hole. Making poor Mordred's pussy gape as it tried to contain three incredibly oversized rods, a feat that would've naturally been completely impossible. And yet these three were able to do it, sharing a space in such a way that their thrusts could be synchronized.

Mordred didn't expect to be fucked this violently. Nor did she expect to have three cocks shoved into her pussy. Not that it stopped her from enjoying it. It was a very rough kind of experience, and yet she loved it. She loved it a lot. Otherwise she wouldn't be moaning and screaming in between every other thrust!

It was so intense. It was so overwhelming. And yet it was so perfect. She wanted it to keep going. She wanted them to fuck her until they just couldn't any longer. She wanted them to keep making her cum over and over and over until she blacked out, and then make her cum again as they forced her to wake up..!

But it wouldn't last that long. Thanks to how they were squeezed inside her, and thanks to how tight she was even after being gaped like this, it didn't take long for the trio to let out their respective orgasmic cries as they slammed as deep into her as they possibly could...

None of the three were able to break through into Mordred's womb. At least not with their cocks. But that didn't stop the flow of their cum from slamming into that tiny gate, and forcing their way inside anyway. Both Caenis and Fran's cum leaking its way inside. Only to be joined not by more cum from Barghest...

But piss. Barghest was letting out the most relieved gasp as she filled that hole with nothing but incredibly dirty pee. Which would make it harder for any of the seed to really root itself inside of that room of life. But she didn't care. All of this was caused by her needs not being met, and her need to pee was one that she confused for the need to breed...

Once the afterglow started to wash over the three dominant girls, both Caenis and Fran were about to pull out. But they didn't get far. Not before Barghest wrapped her big strong arms around them, and Mordred as well, and pulled them into a big loving hug...

Right as she fell asleep on top of them. This was another need she had neglected. And she slowly but surely snoozed as she held the three lovers in her arms, smiling thanks to how much warmth they gave off.

Mordred, utterly spent thanks to being filled like this, gazed upon Barghest's sleeping face. As well as the amused and ultimately happy faces of her two lovers. There was a similar trend of bliss on all three of their expressions. And so she closed her eyes and just smiled a bit herself.

Well, she might be filled with cum and piss, and she might have shit herself a little thanks to how big Barghest was... But if anything, their family had grown to include an adorable dog that needed to be trained a little.

And if they were lucky, maybe a few more would join them in the future. All depending on the cum inside her womb taking root...