[ABDL, Diaper Use, Soiling, Brainwashing]

Lightning struck outside the Demon Lord’s window, as the armored woman quietly looked out at the rain splashing down. A sight that she had seen so many times before, and one that she would see until the very end.

Mortizan Hilde. Otherwise known as the Demon Lord of this sprawling magical world. The enemy of all those that hated demons, and an enemy to herself in more than one fashion. The thing that characterized her above anything else was her suit of ornate armor, the same armor that had kept her alive for centuries at this point.

She was… Little more than a puppet. The armor was the one that truly ran the show. Any time she showed resistance, the armor that she had been stuffed into would correct her thoughts to ensure that she filled the role that it demanded. The world always needed a proper threat to ally itself against, and she happened to fill it.

Mortizan, or Morte as she preferred to be called, barely even recalled her life before being stuffed into the suit. She could remember bright adventures with her friends and allies, but those days were long gone. At least a majority of those friends were now dead or converted into fellow members of her army. And those that had survived were endlessly hounded by her forces. Not just because they were a threat to her, but because her lonely heart craved their company. And should they ever be caught, they would be corrupted in the same fashion as everyone else.

It was tiring. It filled her with fatigue. And yet she still stood tall. Partly because the armor commanded it, and partly because she knew that she’d eventually find a way out of this situation. Whether she had to use her new demonic allies to find it, or take control over the armor and win her freedom that way.

“Ah, my Lord! I bring wonderful news!”

Morte looked straight ahead as the double doors leading to her throne room burst open, revealing a rather delicate looking mechanical woman made of gears and circuits that had been at her side ever since she was forced into the armor. The Grand Duchess, Eterna. Somebody that always knew everything she planned to do…

The armored Demon Lord nodded slowly as the crimson eyes within the armor gazed upon the mechanical beauty. “Speak, Eterna.” A booming and powerful voice left the armor. No doubt the passenger’s voice twisted by the armor’s power, to the point where she didn’t even register that it had been changed.

“Do you recall the many bouts you’ve fought against the Grand Wizard and his students? Lin, I believe his name was?” Eterna chimed as she slowly pushed her hands together, the subtle sound of clockwork machinery echoing with every move she made. “We finally managed to break through to his tower. And every single one of his precious boys were given the full treatment for defying you. I even made sure that he paid the price for his constant attempts to resist you! Oh yes, he looked positively adorable with all of his power syphoned into my body, with his form returned to that of a little adorable boy who could hardly do anything once I applied a bit of pressure down below.”

The words that Eterna spoke were slowly but surely pouring through the Demon Lord’s ears as she started trembling. While most of her memory had been eroded over the many years she had been forced to stay awake inside this infernal armor, some still managed to rise to the surface despite everything that had happened.

And the memory of playfully allying herself with one of the greatest elves of her time, Lin… That memory was still burning bright within her mind. She had managed to make him cast aside his hate for the world around him and try to improve himself. She had even seen the fruits of his efforts every time they fought. The little sproutlings, as he called them, were growing and showing their prowess under his tutelage. And yet…

He fell. He didn’t just fall either, her ‘subordinates’ made sure to humiliate both him and his young students in every way that they could. She could picture it vividly with her mind’s eye, how all of those powerful sorcerers were now trapped within layers upon layers of soft clothing that would restrict their movement and their moods, forced to smile and giggle like infants as they were completely stripped of their power to fight back.

But the fact that he, of all people, had been reduced to the size of an infant and made to cum again and again until he could do little more than obey..? That was the straw that broke the camel’s back.

Morte let out a groan as she started to exert as much force as she could. Her muscles atrophying as a result of relying on the armor’s abilities wasn’t going to stop her, as she tried to walk towards the Grand Duchess with killing intent brimming off every little bit of her body.

The armor recognized what she was doing, and it immediately started to press back against her. Putting pressure on her body just like she would crush her opponents. Only this pressure was nice and soft, so it was more like it was trying to suffocate and press her into submission instead of breaking her permanently.

“You… You..!” Morte shouted, taking another step despite the fact that the puffy insides of the armor were disagreeing with her movements. She wasn’t about to be stopped. Not here, when the one that had ruined one of her biggest friends was standing right there in front of her..!

Eterna giggled as her eyes started to gleam a little red. “I see you’re trying to resist your armor again. You still haven’t given up the spark, despite how long you’ve been stuck in there, Demon Lord?” The Grand Duchess said as she stepped closer, not at all frightened or worried about her health despite what the Demon Lord had planned for her.

Morte could feel her consciousness fading. But if there was one thing she’d do before she ended up passing out and falling victim to the armor’s complete control again, it was… it was…

Her mind stalled as she felt a trembling sensation inside her stomach, and a quiet draft passing between her legs. She had a sinking feeling regarding what it was, but she couldn’t act on it. Not while the softness continued to press up against her…

The slits on her helmet that let her look at the outside world shut, and in their place a white glow started to emerge. The white glow was coming from all around her. She was familiar with it, but she didn’t think she would ever experience it again…

“You’ve been a very bad girl, Demon Lord.” Eterna tsked as she slowly put her hands on the girl’s now-naked hips. The armor had partly dematerialized to allow access to the holes below. Access that would be awfully humiliating if anybody except for her ‘most trusted lieutenant’ happened to be in the room.

Morte tried to focus on what was happening. But the more she focused, the harder the armor pressed down on her, and the brighter the white light became. It was swallowing her thoughts whole as the throbbing inside her stomach grew more potent and almost a bit painful.

“If you had just been a good girl, and you accepted your role as the Demon Lord, you’d never have to go through this again. But I suppose making a mess of yourself will serve as a just punishment for disobeying your role.” Eterna explained as she thrust her arm out to the side, causing her hand to spring forward and reach for a hidden object behind one of the many decorations that dotted the walls of the Demon Lord’s chamber.

A soft crinkle resounded through the room, and Morte’s mind quickly filled with a very vivid image. Of a horribly humiliating undergarment that she was all-too-familiar with. When she had been stuffed into the armor all those years ago, she was forced to wear diapers due to the lack of personal relief. Until she could sustain herself on nothing but the armor, the diapers would serve as a toilet that kept her from making a mess of the place… While at the same time serving as a dumping ground for all of her attempts to resist the armor.

In fact, just the sound was enough to make her poor sphincter release, causing a cute little brassy sound to leave her cheeks. And if this pain inside her stomach continued, she’d do much more than just fart.

Eterna carefully laid her massive Demon Lord down on the floor, with her exposed waist looking so adorable. Her nethers were practically untouched since the day that she was stuffed into the armor. A testament to the armor’s ability to preserve the one wearing it.

But she couldn’t admire her original master’s handiwork. She had a baby to change. That humiliating diaper, with a cute drawing of the Demon Lord’s horned helmet on both the front and the back, was carefully slid underneath the Demon Lord’s buttocks.

Once it was nice and cushy up against those two wonderful buns, it was easy to weave the mid section through her thighs. Of course she made sure to push the puffy pamper’s middle part up against the Demon Lord’s pussy to give her a little bit of pleasure, before keeping the front pinned against her crotch. Snapping the tapes on from there was just as easy… And if she had timed everything correctly, she wasn’t a second too late.

Indeed, Morte’s mind was turning into mush from a combination of the light inside the armor and the way the armor tried to squish down on her. It had gotten to the point where she was starting to drool, and her faculties had to be evacuated. Which meant that the pressure inside her stomach suddenly vanished, and a stinky sludge started to pour down through her.

The powerful Demon Lord was trembling and gasping like any other poor girl that was busy filling her pants with a torrent of filth. But unlike the common folk, this stinky load was guaranteed to make her more agreeable in the future. It contained every little feeling that had been holding her back, forcibly pulled from her heart and turned into waste inside her tummy.

“Such a good girl, pushing all that difficult stuff out.” Eterna giggled as she held one hand on the gradually expanding bottom of that stinky yet humiliating diaper. This was her favorite part of caring for the Demon Lord. Whenever she became a problem, this was usually the result. She didn’t understand why her Master had programmed the armor to act this way, nor why she had been programmed to enjoy this…

But it really didn’t. What mattered were the quiet cries of pure joy that came from within the Demon Lord’s helmet. A sign that everything was going according to plan. It wouldn’t be long before the Demon Lord was following her Armor’s orders once more, and then everything would be back to normal. Maybe she’d even introduce the Demon Lord to the sissified version of her friend, so she could dominate him just like she expected.

Morte drooled as her helmet slowly disappeared, leaving her to look out at the world around her once more. But her gaze was so unfocused because of the effects of the light that had filled her head. As well as the overwhelming softness that would incapacitate anybody and reduce them to an infant within minutes.

She didn’t even blink as Eterna offered her a pacifier. She just suckled on it like a good little Baby, giggling like every bit of her intellect had been drained into her pampers. And judging by the way she continued to dump more into those formerly white and crinkly undergarments, there was a lot of it that had been devoted to resisting the armor.

For now, all that she had to do was continue pushing and suckling on her Paci. And then the Demon Lord would take over once again, with the most stinky diaper around her waist like a symbol of pride...