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Smoothing out the front of her maid outfit, the raven-haired magical girl stood in the doorway of Illya's room on a quiet Sunday morning, and Miyu couldn't be any more tempted by the beauty that was Illyassviel von Einzbern. It was well-known at school about how clingy she was with Illya, although that clinginess erred on the side of obsession after Illya so valiantly saved her from the last class card. If anything, this was just Miyu repaying her debt, especially after finding out about the white-haired girl's fetish: Maids.
Part of Miyu was surprised that Illya didn't pounce on Leys or Sella like what happened the last time Miyu wore her maid outfit here, but that just made Illya's attention all the more satisfying when it was for her and her alone. Perhaps Illya had more of a fetish for her as a whole, and the maid's dress was just the catalyst, but semantics could be damned when she moved to Illya's bedside. Soft breathing slowly lifted and settled the thin, pink bedsheet covering the sleeping girl, and Miyu found Illya's clumsiness endearing as she noticed one of her feet sticking out from under the covers. Then again, anything Illya did was extremely adorable to Miyu, and she was thankful for having such a great memory.
Alas, Miyu couldn't let Illya sleep forever, especially since she was covering for the von Einzbern maids today. Luckily for Miyu, she overheard Sella complaining about missing out on a special shopping sale in a nearby town because of her maid duties at home, and Miyu more than happily volunteered to cover for her and Leys. It seemed like Sella wanted to mention something to her when it came to waking Illya, but the maid was afraid of being late after Leysritt took too long in the bathroom. Oh well, that just meant more surprises for Miyu to discover, including a soft whimper coming from Illya before Miyu could even try to wake her.
Such a cute groan from her crush made Miyu hesitate for a moment, and that was perfect for her since Illya's thumb shifted toward her mouth. Was this what Sella wanted to tell her? That Illya- hnnngh Well, Miyu thought that the surprise would be as simple as Illya still sucking her thumb at night, but there was a much different sound coming from the sleeping girl. There was no way...
Miyu's hand slowly made its way toward Illya's bedsheets, just as Illya's scrunched face shifted into a look of relief. The maid hadn't quite noticed it before she moved closer to the bedside, but there was a faint scent of something stale and acrid in the air. She would have hoped to dismiss, but curiosity got the best of Miyu as she slowly lifted Illya's sheets to avoid disturbing her. After all, the white-haired magical girl looked so blissful now, even if her eye twitched for a moment as the maid peeled away the covers.
That simple act was all it took to reveal the source of the smell. Or, at least, to reveal the waistband of the source of the smell, since Miyu saw the crinkly waistband of Illya's underwear peeking over the top of her pink pajama pants. However, she didn't have to inspect much further to see the thick bulge of that underwear through Illya's jammies.
If not for the sleepy girl being 10 years of age, Miyu might have thought Illya looked like an actual baby with her diaper being that apparent through her clothes, and just that sight drove Miyu wild. While one hand moved to feel the front of Illya's diaper, the maid's other hand pressed against the front of her dress. Even without directly touching the underwear of either girl, Miyu felt how soggy both of them were, just in different ways.
Very, very different ways...
"Eh, M-Miyu?..." The maid's eyes widened as her attention snapped to the bedmesser in front of her, locking eyes with the previously asleep Illya. Neither girl managed to find more words to say, even if Miyu's mouth hung slightly open. Actually, what could she manage to say in this situation?...
A lack of words didn't mean a lack of action, and so Miyu tried to take a step away from the bed, only to have Illya grab her wrist. Squishy crinkling came from Illya as the white-haired pottypants squirmed in bed, and it took Illya a moment to finally break the silence. "Y'know, I think I might need a change, if a maid like you would be so kind."
"You think?..." Even as polite as she tried to be, the words slipped from Miyu's mouth before she could stop them. Her immediate corrective thought was to bow her head for a moment before fixing her response. "Ah, please excuse me, Miss Illya, I meant to ask where you think your diapers would be." After all, even when not at the Edelfelt manor, Miyu couldn't disgrace the Edelfelt name, even if she was about to deal with Illya's disgraced diaper.
With a point toward the closet, the maid quickly honed in on Illya's diapers like a shark to thick, crinkly blood. Miyu didn't want to waste a moment, as that'd delay her from dealing with Illya's waste. Luckily for her, Sella appeared quite organized, and a box of diapers and changing supplies was neatly stacked in the closet. For a moment, the magical girl wondered what else might be hiding in here, but the wetness of Miyu's own underwear reminded her of what she was here to do.
And yet, as she grabbed the pink-and-blue diaper, Miyu's heart raced when she saw the cute little bunnies on the padding. Illya's stinky, swollen diaper was cute enough with a plain, white design, but Miyu couldn't imagine how adorable the magical girl would be in an even cuter diaper. How did she never notice Illya wore such cute underwear before? Even when she accompanied Illya to the bathroom at school, Miyu hadn't seen her wear anything thicker than magical girl-themed panties, but now Illya was requesting a change into a clean diaper. Maybe this was Illya's special kind of signal to her... Or did Illya think Miyu was the one into diapers?
So many questions swirled around in the maid's head, and Miyu shook those thoughts away as she still had to attend to Illya. "Please forgive the wait, Miss Einzbern." With another bow of her head, Miyu crossed back to the bed, unable to take her eyes off the padded bedmesser. If anyone asked Miyu what she thought of diapers or wetting or soiling in the past, she wouldn't have given those things a second thought past being infantile, but once those things included Illya... The raven-haired girl knew she was going to enjoy every second of changing Illya, although there was a more important step first. "Pardon the intrusion." After setting the changing supplies at the end of the bed, Miyu moved to lifting Illya's pajama shirt. Inch by inch, she revealed Illya's white, porcelain skin to the point that Miyu's thighs squeezed against each other. A special kind of wetness dripped down her thighs, especially as she got to the white-haired girl's chest.
Naturally, at her age, Illya didn't need a bra in the first place, nor would she really need to wear one in her sleep. That left Miyu almost drooling as she revealed the bare, flat chest of her mistress. Perhaps nearly flat was more accurate, as there was just the bare curvature of the magical girl’s prepubescent breasts, topped by a pair of cute, pink nipples. Miyu’s hands barely brushed by them while she took off Illya’s pajamas, and she understood how Illya could go so crazy about the body of another little girl. Still, while Illya had quite the maid fetish, Miyu had much more of an overall interest in Illya. Thus, even the white-haired girl being in diapers turned Miyu on, especially as she started working on Illya’s pajama pants.
The mere thought of needing some absorbent underwear of her own crossed Miyu’s mind while she unveiled the thick, bulging messiness of Illya’s packed pampers. The scent of piss and shit emanated from such a full diaper, although since these stenches came from Illya, Miyu couldn't be the least bit happier. If anything, she’d gladly change a million and one diapers, at least if they were all used by Illya. However, she still had to change the first one, and Miyu took a deep breath as she slid the rear of the pajamas off, leaving Illya in nothing but her well-used padding.
The plain white design of the bulky underwear betrayed how much Illya had wet and messed herself in her sleep. While the rear wasn’t too deeply stained yet, the front of her diaper was a solid shade of light yellow, almost all the way from the front of her diaper to the bulge in the back. A sudden urge to grope such a sag in Illya’s diaper struck Miyu, although she held back for the moment while helping position Illya for her change. Once more, her hands brushed against Illya’s legs, as beautiful as if they were chiseled from marble and as soft as if made from the finest silk. There was nothing Miyu didn't love about Illya, and being prepared to change the young girl’s diaper was proof of that.
All of her ogling only delayed the inevitable change, however, and Miyu cleared her voice while her hands moved to the tapes of Illya’s diaper. “Are you still sure you’d like me to change your diaper? I don't know how long your actual maids will be out of the house, but we can wait for them if you like. Or if you’d like to change yourself.” Miyu didn't want to miss this opportunity, but she had to make sure Illya wanted this too, and the white-haired girl wasn't just wrapped up in the temporary maid's fantasies.
For a few moments, only their mutual breathing drifted through the otherwise silent room, but a small whimper from Illya slipped into consent. “Go ahead, p-please. Just… just be gentle, this is my first time with someone other than my maids.” Miyu’s thighs squeezed drips of wetness between them as her breath grew heavier. Phrasing was everything, and Miyu wasn't sure if Illya was referring to the diaper change… O-or maybe…
Impure thoughts like that were a little too good at filling Miyu’s head, just as Illya was a little too good at filling her diaper. However, when Illya wasn't even out of diapers yet, the maid did her best to once again push those fantasies away, all while she finally got to pulling off each tape of Illya's diaper. Even if she had already disrobed her friend down to her diaper, this was the last step to getting Illya down to her birthday suit. The maid had to take a deep breath as she pulled away the front of the padding, revealing the utter sogginess absorbed in the front. Miyu assumed Illya got a fresh change before her, so she could see how much of an absolute bedwetter her best friend was. With this much urine, the bedsheets would be absolutely stained with piss, and now Miyu could understand why Illya hesitated when Luvia brought up sleepovers in the past.
Naturally, the stench of the diaper polluted the air of the bedroom even more as the source was exposed, to the point that Illya covered her blushing face with her hands. Her best friend really was too adorable, although as much as Miyu wanted to continue savoring the cute embarrassment, the change still had to go on as she reacted to the wet wipes. She was thankful there appeared to be enough for the change, although Miyu had seen another pack next to the other changing supplies before. Sella’s maidliness was admirable, and that let Miyu start wiping against Illya’s pussy. Urine glistened at the ridges, but it was the maid’s job to clean her mistress up as she got to work.
Wet wipes after wet wipes piled up in a small plastic waste bag, and it was no surprise to Miyu that Sella even included trash bags. After all, the maid was seeing the proof of how much cleaning Illya needed, and she could only assume they went through this routine every morning. That meant at least seven poopy diapers a week for Illya… 4.348 weeks in a month times 7… Roughly 30.438 a month… 365.25 diapers per year…
At least that many per year if she went through one diaper every morning, but the fact that Miyu was about to put a clean diaper on Illya meant that she wore one during the day too. The Edelfelts were rich enough to afford that many, although Miyu couldn't imagine how much the von Einzberns spent on diapers per year for Illya if she went through multiple per day. And yet, instead of seeing that for the incontinent biohazard it was, the raven-haired girl viewed that as a challenge as she motioned to turn Illya to her side. Her financial thoughts staved off her perversion through that portion of the change, but there was still a decent bit of messiness at Illya’s rear that Miyu had to work on. That pile in the trash bag grew ever larger as the maid cleaned Illya’s big, pale butt, and she could only imagine Illya inherited this girth from her mother. Irisviel wasn't subtle about her curves, though Miyu directed those thoughts toward imagining Illya's assets when she became an adult.
That sidelined train of thought became dangerous, as Miyu wasn't completely focusing on her job until she heard Illya whimper, “Gentle th-there, please…” Miyu was so zoned out that she didn't realize she was getting between Illya’s asscheeks now, and her nails slightly dug into the upper buttcheek to peel it back. She immediately softened her grip, although the subconscious horniness was too strong in the maid due to her Illya fetish. After a boo-boo like that, Miyu did her best to hurry up with the change, all while not wiping too roughly against a spot as sensitive as Illya’s asshole. Luckily for her, the recentness of the mess made it easier for the maid to quickly clean, and she slid the dirty diaper out from under Illya.
Before any impure thoughts could cross her mind, Miyu swiftly bagged the dirty diaper with the wet wipes and moved the tied trash bag next to the door. She didn't see any kind of diaper pail in the room, which almost surprised the maid as she hoped- Wait, why was she hoping for more poopy pampers? Her love for Illya truly was dangerous, but Miyu took a deep breath before unfolding the new diaper. Even while clean, these diapers were very bulky, but she didn't have an issue with that, as the thought of Illya waddling in a dirty diaper sounded adorable!
The magical maid used that motivation to move into the diaper change, slipping the fresh diaper under Illya and applying a layer of powder. Thankfully, she had read a book or two on maternal care before she came here, giving Miyu a good idea of how to prepare Illya for her change. With that in mind, she turned Illya from her side back on top of the clean diaper, and a little puff of powder littered the air for a moment. Perhaps she used a little too much, but Miyu figured that it wasn't bad for Illya to smell like a baby. Her underwear was meant for one, after all, and Miyu received a good reminder of that when she pulled the front of the diaper between Illya’s thighs. Once more, little rabbits adorned the pink-and-blue diaper, and Miyu felt herself blushing from the cuteness. However, she wasn't blushing as much as Illya absolutely was.
As much as Miyu could clean Illya’s crotch and ass, she couldn't wipe away the permanent rosiness of Illya's cheeks due to the situation. Despite being the one to bring up the change in the first place, her mistress was the more embarrassed one, while Miyu knew she had laid her claim to the title of horniest in the room. But how could she not get excited down there when she could explore Illya like this? And even more so when she pulled the wings of the diaper around Illya’s petite waist, ready to seal her in another cutesier diaper. Miyu started with the top tapes to avoid squeezing Illya's hips, and she moved to the lower tapes to wrap the wings around her thighs. As she stretched the leak guards to prevent them from bunching up, the maid adjusted the tapes here and there a few times to get the perfect fit. Nothing less would be expected from an Edelfelt maid, even if Miyu wasn't sure if diapers were in the job description.
Nappies would be as of now if it meant she could keep changing Illya’s infantile underwear. And since Illya wasn't in panties, Miyu figured she could sneak a pair while Illya wasn't looking. She could only imagine the cutesiness of the white-haired girl's thinner underwear, but for the time being, she gave a few pats on the front of the diaper. “All done, Mistress~" Miyu beamed with pride over such an excellent change, especially since she had only read about them in books before. There was no doubt in her mind that the motivation of changing Illya was what made her do such a good job, and it appeared that Illya didn't have a problem either, as she explored the front of her diaper. " While you get used to your change, let me dispose of your old diaper. I assume the outside trash will be fine?” After all, without a diaper pail, Miyu didn't want to stink up Illya’s room with such a messy diaper.
It was natural logic for the maid, but as Miyu took a step and turned to dispose of the soiled underwear, Illya grabbed her wrist as she had earlier. Before Miyu could question the contact, Illya pointed a finger down at the floor where Miyu once stood. A wet spot decorated the carpet, and now it was Miyu's turn for her face to warm up. "Looks like I'm not the only one in need of a diaper, hm?” Illya, being a bedwetting pamperpacker, put Miyu in a nominal position of authority over her fellow magical girl before, but the maid’s heart raced as she felt the momentum shift in the room.
"I can explain! That's not what you think it is.”
“Then you didn't pee yourself? So why is the carpet wet?" Illya jumped off the bed as Miyu took a step back, but the diapered girl still held her wrist. As strong a magical girl as she was, Miyu was too weak against Illya, and she swiftly found herself trading places on the bed. “Oh, Miyu. Miyu, Miyu, Miyu…” Excitement and fear mixed within Miyu as Illya pinned her down while wearing nothing but a thick, babyish diaper. As much as Miyu was supposed to be the more mature one in the room between them, Illya more than cornered her, and the white-haired girl moved her face right above Miyu’s. While Illya logically had to keep one foot on the ground, her other knee moved onto the bed, pressing between Miyu's thighs. She was more than wet already, although her mistress gave her the command. "Show me why my maid should be in diapers too~”
While a dominant switch flipped in Illya due to the maid outfit, a submissive switch flipped in Miyu as her bladder’s years of potty training struggled against the order. Illya was too powerful, however, and Miyu groaned as she pushed to break the dam in her pussy. Dribbles of urine saturated her slicked panties, and Illya had to add a firm, "Now~” before the flood let loose. The maid could only imagine how soaked Illya’s knee would get, but at the same time, that knee nudged further against her pussy while she peed herself like an un-potty-trained infant. Illya’s nighttime diaper spared the bedsheets overnight, but they met their fate with their inevitable soilage. Miyu could only imagine the wet spot growing under her as her control slipped, and now she couldn’t stop the accident if she tried.
But she didn’t want to try, as Illya gave her a command. Miyu panted while she continued to wet herself, and after what felt like an eternity, the spring sputtered to get out whatever little bits of urine were left. Even as Miyu managed to say, “All d-done…”, she felt a few remaining beads of piss leak into her soggy underwear.
As soon as she said that, Illya lifted the maid’s chin closer to her lips, but they didn’t meet. “Good girl! Now, let’s get you into a diaper, and maybe we’ll see what reward such a good maid deserves.” When Illya let her go and pulled away, Miyu’s petite chest heaved up and down, and her heart felt like it was going to burst out of her chest. Her thighs shivered as she lay atop the pissy sheets, and that other kind of wetness returned to coat the front of Miyu’s wet panties.
All the bedwetting maid could do was lie there as she awaited her change from her padded mistress, although her heart skipped a beat as she overheard Illya mutter, “It’s so wonderful to finally have a maid I can play with~” She knew that maids flipped a switch in Illya, but Miyu Edelfelt didn’t realize exactly what she triggered in her fellow magical girl.