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The Demon Archives. A cursed locale filled with all sorts of forbidden knowledge that was supposed to be accessed only by Demons and the kind of people that they trusted. Because if you weren't part of either group, you would very quickly find yourself subject to all sorts of torture. At least, that's the kind of reputation that the place had.
"Haaah... Can't believe I have to keep lugging this thing around. But at least I'm finally here..."
Which was why the Witch, Esmer, decided to barge straight in. Because why would she care about some crummy rumors? She was a powerful Witch, and she had managed to subjugate Demons before. As long as she kept her guard up, she would be able to pilfer any kind of knowledge from the books stored within these Archives, so she could deal with her current predicament.
As perverted as she was at heart, she was not too thrilled about the fact that she was currently wearing a diaper that reached all the way down to the floor. And that was before she started filling it. The sheer amount of padding was too much for anybody to handle, at least if they weren't a pervert like her. For her, it was just a mere inconvenience. One that forced her to squat down and deal with her rising arousal every few moments, as the sensation of having all of that grind up against her body was far too much.
How had she ended up with that diaper around her waist? Oh, nothing special. She had just managed to duel against one of the Demon Lord's greatest minions, the recruiter Powder. And while she had managed to avoid being subjected to recruiting, she did not get away unscathed. In fact, just the thought of that cheeky femboy and his love for padding...
"Hhaaaaahhh..." Esmer let out a satisfied moan as her eyes grew nice and dim, squatting down as she let herself get proverbially absorbed by the softness of her garment. If only it wasn't something she was stuck with, if only it wasn't something that was locked in such a fashion that she couldn't push her hands down against her crotch, then she would be enjoying this.
As her cheeks slowly flushed red as she felt the nice sensation of juices running out from her pussy, as well as the way that the soaked pamp pushed up against her, she slowly let out a sigh of relief. Sure, she couldn't pleasure herself, but at least the curse currently cast on this diaper let her get close to a climax...
But she had to focus. Even with all of this pleasure rushing through her, she had to investigate the Demon Archives and try to find a book that might tell her how she could fight back against high tier curses like this one. And if she couldn't find one, then she'd just have to find one that told her how to subjugate demons. If she couldn't get it off on her own, then she would punish the one that had forced it upon her. Oh yes, to see him kneeling in front of her, to see him trying to struggle against her as she pushed all of that heavy padding onto him...
"Eheheheh... Ehehehehehehe..." Esmer giggled as she shivered all over. Ah, it had been so long since she had bullied somebody. Mostly because she had promised to play nice with the adventurers that she had grown so close to. She remembered her first few encounters with that blonde girl, Makara. She thought she could punch her out, but she ended up filling her diaper over and over in shame instead. It was only the sight of her determination and how much she desperately tried to stop her that had made Esmer finally turn to her side...
But since she couldn't bully adventurers, she really hadn't gotten the chance to bully others. And she really did want to just completely and utterly dominate a Demon to try and work off a bit of the stress that came with being stuck with a diaper that eclipsed her legs in size. All while she humped away at it idly, her body responding to the exciting fantasies that rushed around inside her mind...
As a little more of her juices poured into her diaper, she shook around to try and get rid of the needs inside her. It was a hard task, and the task of sorting through all of these books was going to be even harder. And yet she was going to try her best. Because if she didn't, then she'd be stuck in diapers for the rest of her life. Stuck without the chance to properly masturbate because of the locked curse on them...
But first, she had to do a little breaking and entering. It didn't take much for her to notice that there was a significant amount of magic in the air. One wrong step, and she would end up trapped within a barrier. Or worse, a suit of armor that would cause all of her padding to try and crush her as it was compressed into such a tiny space.
Esmer held out one hand, her eyes glowing a deep purple right as it seemed like she touched something corporeal. And then she slammed her fist forward, causing that very same thing to shatter. As if the air itself shattered in front of her, letting shards fall to the floor and disappear in a puff of smoke.
"They really think they can just keep me at bay with a bit of miasma." She giggled, all while waddling forward and trying her best to ignore the sensation rubbing up against her most sensitive areas. "They should know better. Anybody at my skill level can deal with a bit of miasma. We won't be contaminated, just because we decide to wander into a place meant for Demons." The Witch bragged, though she knew from experience what it would be like to fall victim to it. An experience that would be delightful, if she wasn't currently unable to take full advantage of it.
By shattering this miasma, she also got a much better look at the Archives themselves. It was like they were spreading out in front of her. While she had been able to see quite the large set of bookcases before she shattered the miasma, now she could see them stretching out into infinity. And even if she were to turn around, she couldn't see an exit. All she could see were further books. This was the result of what she had done. The result of unleashing the full power and potency of the Demon Archives.
Of course, Esmer had just made her job a lot harder. The Demon Archives proved themselves to be much, much bigger than one would feasibly be able to explore. If she were to randomly try and search and find some sort of pattern amongst the books, she would be here for years. And that was assuming she didn't get pulled into one of the books or whatever else these books might do in response to being read by somebody that wasn't a Demon...
But she had more than enough time. And she wasn't exactly the type that would do all of this without a few extra tricks to aid her search. All she had to do was reach out and use her powers yet again. Apply a little suction, and-
"Hold on! Stop! You're not supposed to do anything to these books!"
A sweet voice echoed out, and the glow faded from Esmer's eyes as she raised an eyebrow. Well well, it seemed like she had stumbled upon somebody she might be able to use. Especially since that very same somebody sounded a lot more vulnerable than she would've expected....
Slowly but surely, somebody descended into her vision. And she could feel the slightest twitch in her eyebrow as she tried to process what she was looking at. Was this supposed to be some sort of mockery, or did the Demons just have a twisted sense of humor beyond making fun of her?
The woman that had called out to her and tried to stop her... Was a rather curvy woman, not unlike herself. She even had long flowing locks that made her look even more like her. But there were a few key differences that made the two stand out from one another, once you took the base physical traits out of the picture.
The first thing that stood out was their respective attire. Not the diapers, there were certainly diapers in play for both individuals, but more so what the woman wore as a top. She wore a sleek yet cozy suit that made her look even thicker than she really was, with her breasts comfortably pushed up and made all the more impressive thanks to the inner padding. Combine that with the chain that connected her glasses to her collar, and she was easily identifiable as some sort of librarian, or at least a woman of similar status.
But as said, diapers were a thing that connected them. But in the case of the woman in front of her, she didn't exactly have legs nor a rear that she was able to cradle. No, her diaper made up the entirety of her lower half... Because that diaper was shaped like a spider's body. She was some sort of Arachne... Diaperachne? It was hard to properly assess what she was, and frankly Esmer didn't care for the specifics. Her mere presence was enough to sour the Witch's mood beyond compare.
Because why else would somebody make a creature like her, half diaper and half beauty, if not to try and get under her skin? It was definitely Powder's fault. He had gone through the trouble of sending somebody after her, to try and save face due to how she had avoided getting recruited. At least this padded spider wasn't made from Makara, then she would've actually been furious. And then the spider would've been torn limb from limb, to try and get back the girl's proper self...
"Oh? And what are you going to do to me if I try to mess with these books?" Esmer did her best to try and appear like she wasn't furious. Grinning as her eyes glowed and one of those books started to fly into her hands. "They're all dusty and useless anyway, so you're not getting anything out of protecting them. All you're doing is just protecting a bunch of useless old knowledge. Besides, what's a girl like you doing in a place like this?"
The Diaperachne glared through her glasses as she watched the Witch blatantly disrespect her. How rude! How rude, how rude! "These books are not meant for non-Demon hands! They'll ruin your very existence if you try to read them!" She cried out as she skittered towards her, instantly yanking that book out of the purple-haired Witch's hands and shoving it back into its place.
"Please, they can't ruin somebody like me. I've already ruined myself far enough, I should be fine when faced with something like this." Esmer laughed, all while her eyes continued to glow. "Besides, I don't recall taking orders from a Librarian. Especially not one with a diaper shaped after a spider's butt."
The Diaperachne's eyes lit up as she heard that, her body trembling. She didn't like her tone. Oh, she didn't like everything about her. She was so mean. So, so mean. That wasn't fair, she had done a great job protecting the Demon Archives. But she was something else, she wasn't like the other Humans that came around. Well, of course she was. She had a massive diaper around her waist that was keeping her from walking. Not unlike her lower half... "You will not insult me, and you'll call me by my name, Charle! Please, and thank you!"
"Charle. What a mess you are." Esmer glared at her, taking a full step forward despite the pleasure it brought her. Oh, she couldn't keep her emotions in check at all. No, she was downright furious now. "You think I really care about a mere Librarian? You think I care about somebody that makes a mockery of beauty? You think I care when you look so much like me, and you obey commands from some crummy Demon like that ultimately matters?! Just looking at you makes my heart writhe!"
Esmer started channeling all of her power into her hands, all while those eyes of hers glowed even brighter purple than before. "Before I figure out exactly where the books I need are, I'm going to get rid of you so I don't need to think about what I could be. So disappear, Charle!"
Charle's eyes narrowed, as her mood had likewise taken a turn. And instead of lifting a finger to properly fight against the threat in front of her, she lifted both of her legs to tighten the web that she had spun so long ago...
Esmer's power suddenly died down, as a pulse of new emotion rushed through her. "W-What?" She muttered, as her heart pounded against her chest. What was this feeling? What was she... N-No, that wasn't possible. She hadn't felt fear in years. Ever since she had abandoned her Humanity had progressed down the path of becoming a Witch...
"I really don't like doing this." Charle said, all while slowly pushing her glasses up until the light from within her eyes made it impossible to see them if you were looking straight at the lenses. "But you've forced my hand. You've insulted me, you've made your intentions to ransack these Archives clear, and I cannot let you do such a thing. Naughty girls like you deserve to be punished."
Esmer trembled as she listened to the Librarian's voice. It was making her... It was making her feel all sorts of fear. And the thing that made her feel the most afraid was the light behind those glasses. It was piercing straight into her heart, making her collapse onto the diaper underneath her. She wanted to crawl away, even though it was humiliating. Anything to get away..!
But she couldn't. She couldn't get away. Once she had been entangled in the web, which gradually became visible and showed itself to have been woven into her, it was impossible for her to get free. Resulting in the Diaperachne being able to grab her by the cheeks, all while several books started to open on the shelves near them.
"Ssssh. Ssssssssh." Charle said, all while slowly caressing both of those cheeks. "You mustn't make too much noise. You're still in a library after all." Her words were soft and soothing, but her expression was still as fierce and as displeased as before. Making for a contrast that Esmer just couldn't handle, the Witch continued to tremble within her grip.
But she did grow quiet. At least, her lips did. But where her lips faltered, her rear would persist. Not that she wanted to make noise through her ass, much less put it to good use. She understood exactly what was happening, especially as her stomach started to writhe and cry out with grumbles. She was going to use her diaper. And she didn't want to use her diaper. She wanted to do anything but use her diaper!
All the books that had opened slowly but surely started to fill with words, as Esmer's expression turned from one of pure fear into one of dull and unaware bliss. All while the pressure that had been building inside her, as well as the sounds from her stomach, came to a quiet and simple end. All thanks to the way that she subtly started to push...
The more that the books filled with words, the more that her diaper grew outward. Slowly but surely growing so thick that you couldn't see her legs... Nor could you see that it was actually wrapped around the waist. It was more like it was a part of her, just like Charle's own. All while it just kept on growing longer and longer...
All of her power was being sapped. You could just barely see the look of realization dawning on her face before that bliss took over once again, as her diaper coiled around and stretched further out. Until there was nothing left of her diaper except a long serpentine tail, which now made up her lower half. Just like Charle's own. All while the glow and the natural power in her had gone away...
Esmer blinked as the light in her eyes slowly returned, barely letting her see that her hair had grown shorter and blacker, while her hat had fallen to the wayside. "What... What happened..?" She muttered, her memories a complete jumble. Unaware of how they had been tangled up while her powers had been sapped by the books that slid back into place.
Charle smiled as she slowly reached over and hugged the brand new Diaperamia. She didn't want to convert somebody like this, but it was necessary to put her in her place. And besides, she was a lot cuter now that all of that bad stuff had been drained from her. "You were just a little dizzy, Esmer. Here, how about I fetch you a set of spectacles to aid your eyesight, and then we start checking if everything's in order with the Archives?"
"I... I think that sounds good." Esmer had to admit, she didn't know who the Diaperachne was. But she seemed warm and nice. And to be honest, she was actually kind of cute. That mature aesthetic with the diaper lower half... It reminded her of herself. So much so that she immediately started to coil up around herself as she felt a bit of shame and embarrassment fill her... And then promptly turned red as she realized that her lower half was full. Oh no.
A soft giggle left Charle's lips. "And we'll get you a change as well. Can't have my new assistant going around being all sorts of messy. Come on!" She said, scampering away as she kept an eye on the slithering girl behind her...
Esmer followed. Unaware of her past, but excited for her future with the nice Diaperachne that considered her a cute assistant...