Milly's App?

The sliders were simple: size, usage, and time. Blue lines filtered through gray circles and terminated in an unlit gray line. Moving the little circle across the touch screen with her finger allowed Milly to replace the drab gray with a more vibrant blue. These three options hovered over a few toggleable options: Wearable, trap, and face landing zone. All of it was positioned over a button that said “TRANSFORM!” in big letters. This layout took up the bottom half of her screen while the other half displayed a view of the world captured by her camera. A little reticle waited in the center for the appearance of a target.

Milly Ashford didn’t question where this mysterious app had come from nor was she concerned with why she’d been the one to receive it. She was just eager to try out her new mysterious toy.

She trawled through the hallways of Ashford Academy looking for a test subject. The terms of service had explained exactly what the app would do. Though she was somewhat dubious on whether or not it would actually work. She secretly hoped it would but could hardly believe it to be true. Even in a world of inexplicable circumstances, its promises seemed impossible. The fact that it was almost tailor-made for her also seemed like a cosmic joke.

Rational thought even told Milly that she was wasting her time humoring the app but here she was, walking through the hallways with her smartphone held in front of her, adjusting the sliders. “Medium size to start with I think but we have to go max usage, I don’t want to squander this if it’s like a one-time thing. For time... let’s put ‘until reverted’ .It's no fun if they turn back before I say.”

Happy with her selections she advanced through the hall stopping when she saw a shorter girl with dark green hair a little way down the corridor. She had one hand wrapped around several books while she adjusted large glasses with the other.

“Nina,” Milly said, a smile spreading across her lips deviously, “perfect.”

The blonde ducked behind a pillar, hoping her target hadn’t seen her yet. There was no telling to what extent the transform button on the app would work. If it came off as just a silly flash while Milly snapped a picture around the corner she could play it off. If it worked exactly as intended she wouldn’t need to worry at all. Nina wouldn’t be able to move anyway. It was that in-between place that worried Milly. She didn’t want something to go wrong.

She aimed the camera at Nina, lining her up in the target and hitting the TRANSFORM! button. Her camera flash lit up the space.

Nina seized in place, stopping suddenly in the middle of the hallway. Her books tumbled to the ground, spreading out in an arc in front of her. Her eyes went wide, struggling to find meaning in the way her body started to fold, an explanation for soft skin suddenly becoming rigid and plastic-like.

Milly watched the transformation with hungry, unblinking eyes. Nina’s legs disappeared, becoming thin plastic wings with tapes at the end. Whatever semblance of a human form was melting away, becoming a bottom-heavy sphere in the middle of the hallway. The back leg tapes met with the shiny plastic landing strip that her torso and face had become.

The massive pamper laid on the floor, its transformation totally complete. The shuddering nappy stood at a respectable three feet high with its body bearing the tans of Nina’s uniform and the dark green of her hair creating the stripped accents across the padding and the bold front of her landing strip. The weight of its interior padding caused the diaper to slump heavily on the floor, its mass spreading across the hard floors of Ashford Academy.

Without checking to see if somebody was coming, Milly ran up to the Nina diaper, a sparkle in her eyes as she approached. Based on what the Pampformation app had said on its info page Nina was still in there, desperately trying to hold onto herself. The sliders of the app controlled how big of a pamp she’d become and then how much she’d “use” herself.

The real-world logistics of such a thing hardly made sense to Milly. She didn't care, in front of her there was only the diaper, a giant, shifting titan of plastic and interior fluff. Nina was still in there as a mental aspect, holding a copy of her former shape in the event that she ever was able to turn back and experience everything the diaper would. The usage slider on the app decided how much of her adult intelligence would be dumped into her new body.

With the slider cranked all the way up she’d lose all that brain power she’d studied so hard for. When Milly turned her back she’d still need diapers, probably a nanny too if the app’s promises were genuine.

Milly watched eagerly, waiting to see if the next stage of her fellow student council member’s pampformation. As if on cue the body of the Nina diaper started to swell, growing steadily while the interior padding turned yellow.

The smell of acidic urine hit Milly’s nose first, the waves of heat radiating through the padding came next. It was like standing next to a space heater with a growing source of wet warmth spreading across its surface.

Milly was fascinated, both curious about how this was possible and aroused by the sight. She collapsed to her knees dramatically, pressing her hands against the outside of the massive pamper. “Oh aren’t you just the cutest now Nina? I wonder what it feels like to be you in there. Just to have your own mind pissing away into yourself?” She groped the outer shell of the diaper feeling her hands slide across the plastic shell with a satisfying zipping sound.

Her face pressed against the diaper allowed her to feel the heat more closely, along with painting the piss smell permanently into her brain. A gentle rumbling emanated from the Nina diaper, causing Milly to pull away slightly.

“What’s happening?” she wondered.

A burst of rumbling flatulence let her know right away what experience she would soon be having. Usage didn’t just mean Nina would piss herself: mushy weight was filling her diaper body too, causing the back to tent out for a moment before dropping into the bottom "crotch". She was shitting herself, causing her own body to sag and stretch with each uncontrolled “push”. Milly jumped up giddily, running around the transformed girl to see the results from all angles.

It was a perfect vision of pure humiliation and Nina was trapped. Her only escape was in Milly’s hands, a thought that made it all the more exciting for the student council president. Girls in diapers had always sparked her interest. The original iteration of cupid day had even included them. Girls as diapers was vastly different, but it was a concept that filled her with pure animalistic hunger for more.

Without even waiting for Nina to finish messing herself Milly ran off, looking for her next test subject. There were so many possibilities and settings to test after all.

As she worked her way through the halls she fiddled with the settings, trying to find the perfect combo for her next person. She ran headlong into Shirley who fell back at the same time as her. As Milly fell she caught the brief flash of the redhead in her camera’s view. Without checking the settings she hit TRANSFORM! When she looked up Shirley was gone and had been replaced with an orange tinted diaper in the middle of the hallway. Her eyes peaked up from the waistband, pleading for Milly to help before the self messing started and her animated eyes rolled back. The place where her cheeks would have been reddened, a slight flushing while her mouthless diaper body gave out moans with every squelching fart.

Milly’s free hand nearly drifted beneath her skirt in the middle of the hallway, the sight itself was so hot that she could barely contain herself.

Just before she broke down Milly pulled the Shirley pamper into an empty classroom, this time not leaving behind obvious evidence. Upon seeing Lelouch coming down the hallway calling for Shirley, Milly quickly adjusted her settings again, wanting to try something new this time.

“Usage to nothing, trap, face visible.”

Lelouch caught sight of her, waving. He started to say something but Milly hit the button without hearing it. The app caused him to flatten to the ground, flash transformed into a pamp trap that almost perfectly blended into the floor.

That green haired girl who followed him around all the time pursued behind moments later, confused that he’d disappeared despite just seeing him moments ago.

“It’s a perfect train of people,” Milly thought, watching as the girl with long green hair's steps passed closer. She was one away from the Lelouch pamp trap on the ground and Milly’s breath hitched, eager to see the result.

The pamper trap jumped up from the ground, decimating the girl's skirt in a whirlwind and replacing it with itself. Glowering eyes looked out from the diaper’s landing strip still holding that brilliant purple color from its previous form. The Lulu diaper was pissed but couldn’t react beyond vague mutterings through the plastic.

The girl it’d strapped itself too seemed unperturbed by the new garment. She poked at it for a second before turning around and walking away, much to Milly’s surprise. “What the hell was that about? I’ll never understand that girl.” The student council president wondered, considering chasing after her.

That thought made her realize that it'd been a mistake to leave evidence of what she’d done behind. Milly left the empty classroom, making her way back to Nina. She was glad to see that the once-genius now-diaper was still where she’d left her. It took considerable effort due to the size of her and the newly added foul weight, but she was able to pull it across the hallways toward the empty classroom where the Shirley diaper waited.

When she opened the door Milly expected to hear the faint sounds of rustling, not the sounds of somebody exclaiming about a diaper. She turned to see Kallen, eyes wide with shock examining the Shirley pamp on the ground. She turned to Milly with anger spread across her face. "What the hell did you do?" she asked. Without waiting for an answer the normally sickly girl charged at Milly, aiming to tackle her.

As quickly as she could Milly pulled out her phone, her finger frantically swiping at the sliders and toggles on the app. She aimed the camera at Kallen but the girl was too close, already upon Milly. The phone was tossed aside as they collided. Something must have hit the button in the right spot because the camera’s flash at them went off just as Kallen and Milly tumbled to the ground.

Milly was blinded by the bright light, but so many other sensations lit up across her body, distracting her from that fact. The feeling of her skin shifting and stiffening while every other part of her softened, becoming the core of the padding she was inevitably becoming, was euphoric and would have elicited a moan if Milly still had a mouth to make such noises.

It wasn’t just the activity she expected either, there were additions too. Her body was spreading and growing, creating an even larger pamp than Milly thought possible. It became clear why when her vision came back. She was staring at the ethereal face of Kallen floating in front of her.

She was nude and slightly see through with a gigantic ghost diaper wrapped around her. Milly looked down to see she was dressed almost the same. She couldn’t just feel her own body though—it was also Kallen’s body and herself wrapped around Kallen and her body. The diaper sitting in the abandoned classroom was her too and she was connected to it.

The multiple sensory inputs to her nervous system was overwhelming at first especially since every shift of her and Kallen’s ghostly forms tussled their diaper form they felt more of their bodies rubbing the interior core and vice versa. The soft padding brushed sensitive skin that had its feelings doubled because they shared the same sensations.

“What happened?” Milly asked, glad to hear she could speak, at least to herself and Kallen.

“You tell me." Kallen said balefully, obviously bothered by her new reality, “You caused it, and now we’re stuck. What you did to the others probably happened to us so we’re, what? A giant diaper?”

Milly had a lot of theories. She hadn’t expected that framing two people in the shot would merge them but, given all the app’s abilities she’d seen so far, it didn’t really didn’t seem so strange. She looked around the space her form floated in. It matched the shape of the pamper with a full view of the outside world through a slightly foggy lens. She could even see her phone lying face-down on the ground less than a foot away.

“Yes, we’re literally a diaper. I don’t know what buttons I hit but if I didn’t set a timer we might be stuck like this.”

“Stuck!?” Kallen exclaimed, “What do you mean st—guh” Her words were cut off by a cramp, one Milly felt radiate through her own body too. It was strangely startling to experience the same shocks throughout her body that signaled she was about to push load into her diaper, but not have it be her body. Kallen groaned, depositing the first of her adult thoughts into the diaper around her waist causing it to unfurl at the seams and sag heavily. It was subsequently happening to Milly who felt hers get bigger and fuller. All the while that weight pushed against them too. The soft interior became stained as the plastic exterior stretched and strained.

Kallen and Milly cried out in tandem, flooded with euphoric pleasure at the self usage. Shirley’s eyes rolling back made sense now. Being filled in such a way was amazing and Milly shared that wonderful release through Kallen as her brain slowly emptied without losing any of herself, yet.

The pressing urge to piss was rapidly growing within her too. It was like the orgasmic feelings were a fire within her, boiling away her adult intelligence and causing it to melt in her own body. It pooled at her bladder which felt like it had the whole weight of Kallen’s mind on it.

Feeling the layers of metaphysical experiences passing through her was so much. It clouded her rational mind. She was only able to get one worried thought out before another burst overcame her. “Wait, how much was the usage slider set?” she wondered before releasing it as a firehose blast of piss straight into her diaper.

Her interior soaked up the same acrid-smelling urine she’d experienced from Nina’s diaper self. It flooded her and Kallen in one fell swoop, an intense spray of pressure that followed vibrant warmth all throughout her form.

C.C. entered the abandoned classroom at the behest of her new diaper. The thing had a voice that sounded suspiciously like Lelouch’s and spoke directly into her mind. It certainly made demands similarly to Lelouch anyway.

She was unbothered by it at first, choosing instead to return to the room where her pizza waited. Only when the last slice was gone did she do as he asked, though somewhat reluctantly. The diaper made a lot of demands, telling her she’d look odd without a new skirt or that she should try and take him off. Neither of those opinions were ones she cared about so she just ignored him again.

The abandoned classroom was a sight to behold, or rather it would have been if C.C. was impressed by sentient shifting diapers. Whatever had happened to Lelouch had obviously occurred to a few of his friends. The coloring of the diapers indicated Ashford Academy uniforms, but Nina and Shirley’s hair color was easy to pick out amongst them. The largest pamp, the one in the center, had a line down the middle and had a mix of Kallen and Shirley’s hair color in an interesting fashion.

Nonchalantly C.C. shrugged. “So why am I here?” she asked the Lelouch diaper.

“It’s the phone!” it said, obviously frustrated with his trapped state.

“Oh,” C.C. said, moving to pick up the smartphone sitting in the middle of everything. The camera passed over the room, catching several of the pamps in its gaze as it moved. Each time it did the button marked TRANSFORM! changed to say Revert.

Rather than paying any attention to Lelouch’s demands for her to change him back C.C. fiddled with the app, genuinely intrigued with how it worked. She scrolled a little, discovering there were more options beyond the surface-level ones that had been left on the screen.

The one that intrigued her the most was the Merge Pamps options: a little info box told her that any merged diapers could not be changed back once brought together. She wondered how much a merged five-person diaper could hold. She’d been pretty excited when the Lelouch diaper wrapped around her. Going to the bathroom was always such a chore, so this was the perfect solution for C.C. if she could extend the time she’d need between changes, why wouldn’t she?

As her stomach grumbled she started the process of dragging all the diapers together into a pile. Once she could get all of them into the camera’s frame she sat on the big Kallen/Milly diaper, exposing the Lelouch diaper in the shot as well.

She could feel the pizza she’d been eating earlier making its way to the end of its journey. If she didn’t use the app now she’d really put her new single-person diaper to the test.

With the same nonchalant attitude she always had C.C. hit the merge button. The camera flashed with a—

“Oh?”