Rosie climbed out of her car, adjusting her skirt one last time before heading across the parking lot. She knew it was long enough to cover her diaper, and her shirt was long enough to keep the waistband covered, but it was still better safe than sorry.

She'd done this before, wearing out in public, although she was still new enough to feel nervous as she shuffled across the parking lot. She told herself the diaper was quiet, and nobody would hear, but, of course, she was outside. Once the doors to the store slid open, and she stepped inside, it was a tiny bit more audible, a light crinkle when she walked. Would anyone other than her be able to hear it at all, especially if they weren't listening for it? She hoped not, but it was too late now either way.

Rosie had liked diapers for quite a while now, and had a pretty decent stash. She wore them around the house, and sometimes to the movies, although she knew that was easy mode. She was just sitting most of the time, and usually movies were loud enough to cover up the sound if she had to shift in her seat. She didn't really want to wear them all the time, but there was some adventurous part of her that wanted to push herself, to do something a little more exciting.

Of course, diapers weren't really all that hard to hide, as long as you were careful about it. It had still been embarrassing, the first time she'd went to the grocery store in one, knowing it was there, feeling the smooth plastic rustling between her thighs with every step, but it had been thrilling, too, enough so that she'd cheekily added some baby powder to her cart. She'd felt a rush as the cashier picked it up and scanned it, but the girl hadn't really given it, or her, a second look.

Rosie hadn't been sure what she wanted, really. Had she wanted the cashier to glance at her, spot the slight bulge beneath her jeans, and wink? Ask if she needed a change now? Make her unzip her jeans, then bend her over the counter to spank her when she saw the damp diaper hidden there? She'd at least expected some comment wondering if it was for her little sister, or perhaps daughter, but, of course, plenty of people that didn't have kids, or wear diapers, at all still used baby powder.

She'd shopped at a couple other places, and gone unnoticed, so, finally, today, she'd decided to go for the big one. Today, she was going clothes shopping in her diaper. It made sense. It would be much easier to tell what she could buy that would hide her diaper if she was wearing one when she tried it on. It also felt riskier somehow, like she was continuing to push herself, and grow more daring.

Her heart was pounding a little faster as she browsed through the clothes, especially looking at the shortest miniskirts they had in the juniors' sections, ones she knew would leave her diaper sticking out. She wouldn't normally wear anything that tiny in real life, but she couldn't help feeling tempted to see what it looked like, just for fun. And, to top it off, she found a pink crop top declaring the wearer a 'Brat', in the Barbie font. It was far too short to reach the waistband of any bottoms, much less this skirt.

If she was already trying the skirt, why not go with that, too? It was, again, not something she'd wear normally, and she might feel silly if the fitting room attendant saw what it was when Rosie showed her how many things she was taking in, but it wasn't like seeing that was going to make anyone realize she was diapered.

She picked out a couple more things, stuff she would actually wear, to hide the other outfit under as she walked around, while building up the courage to head to the fitting room. It turned out, she might as well have just headed straight in, because when she got there, the desk where the attendant would normally be sitting had a sign on it, saying, 'Away. Be back in ten minutes.'

Rosie frowned, squirming, the smaller space of the fitting room corridor making her diaper at least seem louder. She had no idea how long the attendant had been gone already, but she'd been psyching herself up to do this, and having to wait was just killing her mood. Cautiously, she poked her head down the hallway, seeing all the doors closed tight. She knew, from experience, that they were locked, and she'd have to get a key to go in.

Of course, she also knew the keys were right behind the counter. She'd been here often enough to know right where they were. If she got up on her tiptoes and reached over the counter, it would be quite simple to just grab one. She could probably be in and out before the attendant returned, and nobody would be the wiser.

She gulped, looking around to make sure nobody was watching. It wasn't really that big a deal, she thought. She wasn't going to steal anything, and she was even following the rules, and only taking in five things to try on. She was just cutting out the middleman, really.

She was glad she'd chosen a skirt as long as the one she was wearing, since it took a bit more stretching than she'd expected to reach the keys. She was pretty sure it was long enough to keep her diaper hidden through all that, but there was no way to know for sure. As she straightened back up, one in hand, she realized she could have simply walked around to the other side of the counter. That felt wrong, though, more like she was doing something wrong.

The key she'd blindly grabbed was a room right in the middle, which wasn't what she would have picked, herself, if she'd had a choice. There were only three rooms on each side, so if anyone else did come in, and use a room on her side, she'd be right next to them. And, after unlocking the door and slipping in, it was almost shocking how loud, in the even smaller space of the fitting room itself, the diaper sounded.

Quickly, to keep herself distracted from that, she pulled out her phone from her purse, starting up a Youtube video of a makeup tutorial, just for some noise to help drown out the crinkling in case anyone did come near the door. She blushed as she slipped out of her own clothes, staring at herself in the mirror for a moment, standing there in her bra and diaper.

It wasn't even a subtle diaper, one that looked like it was meant for people with medical conditions. It was pretty big, and bulky, and covered in cute bunnies. It looked more like a baby diaper than anything an adult would choose to wear, if they absolutely had to. If anyone were, somehow, to see her, they'd know she was just a big baby.

She shivered, and blushed, and giggled at the thought. Of course, nobody would. It had felt risky to come here and try stuff on, but it wasn't, really. She was only changing her clothes here, in the privacy of the fitting room. Nobody was going to know, which was how she wanted it, of course. What was going to be riskier than that would be if she spent too long in the store, and had to use their bathrooms for the mess she could feel brewing in her tummy. She wasn't quite prepared to do that in her diaper yet, and if she wasn't careful, maybe someone would hear her untaping her diaper, or taping it back up, in the bathroom, or, if she was really careless, might spot it under the door or something.

She planned to be back home before that was an issue, however. If she was going to do that, though, she'd have to stop admiring her diaper and try something on.

She went with some of the more conservative things she'd chosen, working her way through them quickly before being left with only the outfit. Seeing them together, now, in the fitting room with her, made them look even more ridiculous, and less like her style. Nobody else was ever going to see this, though, she reminded herself. If anything, she might take a picture of it, but she wasn't going to share it with anyone, obviously.

She put the top on first. Immediately, it was clear she'd been right, and it was far too small to hide her diaper. It barely reached her belly button, much less the diaper's waistband, and there was no way it would stretch down there, either. On a whim, she dug into her purse, pulling out a pair of ponytail holders, one bright pink and one a soft purple, and pulled her brown hair into a pair of high ponytails, one on each side of her head.

She couldn't resist snapping a picture of herself like that, looking very much like what her shirt was calling her. Just a big baby brat. She giggled, staring at the photo, taking a few more in some different poses before making herself move on.

It was a pleated, red plaid miniskirt, although it was so small, it barely deserved to be called that at all. Luckily, it was a wraparound skirt, because she wasn't sure she could have pulled it up over her thick diaper. It did go on, though, buttoning shut just fine on the inside, then getting held shut with a pair of leather buckles on the front.

Of course, fitting didn't mean it hid her diaper, and it very much didn't. The plastic waistband was sticking up quite a bit, between the skirt's waistband and the bottom of her shirt, and most of the diaper's crotch was visible beneath the skirt. She didn't even know whether she should try to pull it up or down to try to make it cover more. Either was futile, really.

Obviously, she had to take some more pictures, but that didn't quite seem like enough. She felt so naughty like this, so bratty. She wasn't about to go parading around the store like this, or even buy it, but it seemed like a shame to just stay cooped up in the fitting room.

She paused the video for a moment, just to ensure she didn't hear anyone nearby, then started it back up. Heart pounding, she shuffled towards the door to the fitting room, hardly able to believe she was considering this. It would be, by far, the most daring thing she'd done since she'd started to indulge herself with all this, but what better time?

She opened the door slowly, sticking her head out first, looking both ways down the corridor. She didn't see anyone there, or anywhere nearby in the store itself. The sign was still up on the attendant's counter. This was it, she thought. This was her chance to prove how brave she really was.

There were no pockets in the skirt, obviously, and she didn't want to carry the key with her. She also wanted to be able to get back into the fitting room quickly, in case she did see somebody approaching, so she pulled the bench out from the wall, propping the door open with the corner of it. She took one more look at herself in the mirror, shaking her head and blushing, her ponytails bobbing, her diaper so visible and obvious, and took a step outside.

She was just going to walk to one end of the corridor to the other, then back. That was the challenge she'd set for herself. She could feel her hand sweating already, her knees feeling a bit weak as she walked to the back of the corridor first, facing away from the direction where anyone would be approaching from so she wouldn't be able to see them, but they'd get a good view of the bulky seat of her bunny diapers.

It was only a few steps, although, when she spun around and saw she was still alone, it was enough to calm her down slightly, and motivate her to go the other way, and even move past the safety of the open door of her fitting room. She hadn't been sure if she'd go all the way, since anyone could be heading down the aisles of the store and glance over to see her, but the closer she got, the more daring she felt, and, in the end, she marched right up to the attendant's counter and gave it a pat, staring out at the store beyond for a moment before turning back.

She was about halfway there when she heard it, and her heart stopping thumping in her chest. It stopped altogether, in fact, for a split second. "Excuse me? Hold on, I need to check you in."

She froze, unsure what to do at first. She'd been caught! Nervously, she tugged at her skirt, unable to tell exactly how close the attendant was without turning around, which was the last thing she wanted to do. Should she tell the girl she already had a key? Or just demonstrate it by ducking into her room and hoping the girl hadn't noticed what she was wearing?

She only had a split second to decide, and, for better or worse, she went with the second, breaking into a frantic dash. Unfortunately, she was so anxious, and embarrassed, she tripped over her own feet and fell. "No!" she gasped, reaching out for the door, so close, her fingers brushing against the handle...

And, to her horror, she watched as the door started to move. "No!" she squealed again, trying to stand up, or pull herself forward on the ground, or do anything, but it was already too late. She'd hit the door just enough to knock it free from the bench, and, in an instant, it had shut, locking her out, away from her purse, her phone, and, more importantly, her clothes.

"Whoa, are you okay?"

Rosie groaned, not wanting to move from her spot, even though she was sure her skirt her blown up, showing off even more of her diaper than it normally did. She was going to have to eventually, though, so, reluctantly, she climbed to her feet, staring down at her shoes as she fumbled with her skirt, standing there in front of the attendant. "I-I'm fine," she said.

"Oh," the girl giggled before she could stop herself, making Rosie's cheeks darken even more than they already were. "Sorry! I just thought you were someone... younger."

Rosie could feel the girl looking at her diaper, and knew there was nothing she could do to hide it. "I-I was just... I-I..."

"Do you, uh, have something you want to try on?" the attendant asked after a long, awkward moment.

"Yes!" Rosie nodded quickly. "It's in there!" she pointed at the closed door.

"How would that have happened?" the girl asked, bending down to get on Rosie's eye level, making her feel even smaller. "My co-worker said there wasn't anyone in there before she went on break, and I know I didn't give you a key."

Rosie gulped, her bladder starting to feel full, the way it did when she was really nervous. "Th-There was a key just sitting out, so I took it," she lied.

"Did you now?" the attendant asked, in a voice that made it clear she wasn't buying it. "Didn't you read the sign? Or have you not learned how to read yet, little brat?"

"I-I just thought..." Rosie squeaked.

"Did you?" the attendant mocked. "You didn't hurt yourself, did you? You know, I can always just go look at the security footage. I really don't think my co-worker would have been careless enough to leave a key out like that. I think you," she poked Rosie on the exposed tummy, "stole it."

"No!" Rosie shook her head, which was already spinning. Of course, security cameras! There weren't any in the fitting rooms, so she'd been safe in there, like she'd thought, but when she'd gone on her little walk, they might have seen her! She groaned softly, then gasped, feeling a trickle of warmth as her nerves got to be too much for her. Her hands shot to the crotch of her diaper, praying she hadn't gone enough to be noticeable.

She wasn't sure if she had or not, although she could feel a warmth on her fingertips. Unfortunately, her actions made the attendant grin, and she knew she'd made it pretty obvious what was happening, when, otherwise, it might have gone unseen. "That would be very, very naughty," the girl shook her head. "If I found out that was what happened, I might have to spank you."

Rosie felt another spurt of warm wetness in her diaper. That was something else she hadn't done, and wasn't sure if she wanted to. Now, and here, definitely wasn't the time, though! "I-I didn't!" she gulped.

"Then how is there anything in there?" the attendant pointed at the door. Rosie squirmed, searching for an answer, only to see the girl pause, and lean in closer to the door, listening. "Is your mommy in there?" she asked.

"No," Rosie shook her head automatically, not wanting the attendant to think she had to have her mother take her places.

"We'll see," the girl raised an eyebrow, tapping on the door. "Excuse me? Do you have a little girl with you?"

Rosie wasn't sure, at first, what the attendant was listening for, until she remembered she'd had a video on. Sure enough, if she listened hard enough, she could hear the faint sound of someone talking. "Th-That isn't..." she tried to explain.

"I guess you were telling the truth," the girl shrugged. "I'm sure she would have let you in if you were with her."

"There isn't anyone in there!" Rosie insisted. "That's my..."

"I am not breaking in on anyone to find out if you're lying or not," the attendant said, taking Rosie by the hand and pulling her away from the door. "I think you're just trying to play a trick on me. Well, I have new for you, I'm not going to be outsmarted by some diaper-wetting little brat."

Rosie whimpered, feeling like they were far too close to the rest of the store for the attendant to be saying that so loud. "I-I'm not..." she tried to protest, just for the girl to push her hands away and give her diaper a check right as she felt herself prove her words wrong yet again.

"I knew you were a liar," the attendant smirked. "I don't want to see you back here again. I suggest you march your wet little booty out of this store, because I'm about to call security to tell them to keep an eye on you. I have a feeling you're a shoplifter, too."

"No!" Rosie shook her head. "I-I wouldn't!"

But, before she could continue, she saw an older woman approaching with an armful of clothes. Tugging at her skirt with one hand, and trying to hide the wet spot on her diaper with the other, Rosie retreated.

The store seemed much busier now than it had been when she'd first arrived, although there was a good chance she was imagining that because of what she was wearing now. She wasn't going to be going anywhere without her purse, but she also didn't expect to get anywhere with that attendant, so she needed to kill time until she went on break, and hopefully someone else showed up who was more willing to help her out.

Until then, she tried to keep herself hidden, slinking away to the furthest reaches of the store and standing behind clothing racks, but it wasn't long before she realized she was being watched. They weren't dressed like the other employees, but there was a man and woman pretending to shop, keeping a close eye on her.

The attendant hadn't been bluffing, she thought. She really was being watched by security! Right when the only thing she wanted to do was be invisible. It was going to look suspicious if she hung around too long, so she slowly started to make her way across the store, dashing from rack to rack when they glanced away for a moment. They followed her, making her feel even more frantic.

She couldn't spend all day like this. She had to do something! But what? Maybe she could duck into the bathroom, which she could tell she was going to have to do before too long anyway. They'd probably be waiting for her when she came out, though, and the woman would probably go in to check on her if she stayed in there for a while.

The exit was close, but would it do her any good? What was she going to do, hide in the parking lot for an hour or two before checking to see if the fitting room attendant had changed?

Actually, that might work, she realized. She'd given her friend a ride the other day, which had meant unlocking her passenger's side door. She did that very rarely, and, to re-lock it, she had to click on the lock button on her keyfob twice in a row. There was a good chance she'd forgotten to do that this time, and she could get into that door. It wasn't too warm outside, so she'd be all right in her car for a bit. It was her best shot, she decided. As soon as the security officers were distracted, she made a mad dash for the door.

Of course, as soon as she stepped through the security pillars on either side of the door, they began to blare. She hadn't noticed security tags on her clothes, but she should have known they were hidden somewhere. The sound made her freeze for a moment, other than her bladder, which finished letting go in shock at the loud sound, just long enough that the security officers were able to catch up a moment before she reached the door.

"All right, little missy," the man growled, dragging her away. "You're coming with us."

She frantically tried to explain her situation, but he didn't stop until she was back in the security office, locked in a small, plain, white room with his companion. She was glad he wasn't there, at least, although she had no idea if he was watching on the camera she saw hanging in the corner of the room, when the woman examined her, easily finding the tags on her outfit. "I don't suppose you're hiding a receipt for these somewhere, are you?"

Rosie wasn't, so, to her horror, she was stripped back down to her bra and diaper. Unlike in the fitting room, however, she wasn't alone, and her diaper was wet, both of which made it so much worse. "Wait here," the woman ordered, as if she had any choice in the matter. "We'll decide what to do with you."

"I-I can explain!" Rosie told the woman, but she was already gone, the door closing and locking behind her, leaving Rosie trapped in the tiny room, with just a hard, plastic chair for company.

She had no idea how long she was stuck there, pacing back and forth, then sitting on her squishy, clammy diaper when she was tired of that, hoping she wasn't being recorded. It was long enough, she knew, for her tummy to start to beg for release.

"H-Hello?" she knocked on the door, gently at first. "I can pay for that stuff, j-just let me out of here!" When she didn't get a response, she tried again, her knocks quickly getting louder and more frantic.

To her surprise, just when she was starting to lose hope, the door opened. "Oh, thank y...!" she started to say, only to pause when she saw the fitting room attendant standing there in front of her.

"Hmm," the girl put a hand to her chin. "I think it's her, but I'm not sure. Can I talk to her?"

"Sure," the security officer shrugged.

"N-No, wait!" Rosie tried to push past the girl, seeing the office outside, and knowing the bathroom was only a few feet outside of that, only to see the door close again, locking.

"Well, well, well," the attendant smirked, "look at you, little miss brat."

"I-I swear, I wasn't trying to steal anything!" Rosie told her. "I-I was just..." She winced, her tummy rumbling loudly and ominously.

"You walked right out the door with it," the girl reminded her. "What else could you have been trying to do?"

"I-I didn't..." Rosie fidgeted, biting her bottom lips as another cramp hit her. "I-I..."

"What's wrong, sweetie?" the girl asked. "Having a hard time coming up with a lie?"

Rosie opened her mouth, but before she could come up with anything to say, another part of her responded in a much ruder way than she'd intended. She blushed, then gasped as she shifted her weight, and felt the sticky, warm mush that had escaped into her pants along with that fart. "Oh, no!" she squealed, clamping her hands to the seat of her diaper, trying to stop it, horrified that she was actually messing herself. And, worse than that, that she could feel the mass still slowly expanding beneath her hands, refusing to stop.

"What's wrong, Rosie?" the girl smirked.

"H-How do you know my name?" Rosie grunted.

"Funny story," the attendant shrugged. "When nobody came out of that fitting room, I finally had to go in myself, and there was a purse, and some clothes, and a phone, and the ID said it belonged to a Rosie. And it looked an awful lot like you."

"M-My..." Rosie blushed, feeling herself bend forward at her body's will, pushing a bit harder, trying to get the mess out more quickly, despite her mind fighting to stop it altogether.

"Pee-yew!" the girl waved a hand in front of her nose. "What is going on, Rosie? You aren't living up to your name right now!"

With every fiber of her being, Rosie was trying to stop the stinky, sticky avalanche, but it wasn't enough. She could hear her diaper crinkling softly as it expanded behind her, starting to sag slightly. "N-Nothing," she fibbed.

To her horror, the girl spun her around, giving her bulging diaper a poke. "That doesn't look like nothing to me," she giggled. "Or smell like it!" Rosie tried to turn back around, but the girl held her shoulders firmly, keeping her faced away, giving her the perfect view to watch her filling her diaper helplessly. "You really do need those diapers," the girl mused. "That outfit really suited you. I can see why you wanted to steal it."

"I-I wasn't going to!" Rosie insisted, stomping her foot in humiliation and frustration. "I-I couldn't get to my stuff!"

"Sure, sure," the fitting room attendant said. "That's what you say now. And, you know what? I'll even be nice, and tell that to the security officers. But first, you need your punishment for being an impatient little brat. Reach down and touch your toes."

"Wh-What?" Rosie frowned, yelping as her exposed thighs were given a whap. She bent over obediently, her tummy giving one last push as she compressed it, completing its dirty work and leaving her in a very full diaper, and giving the girl a nice, big target as, true to her word, she started to deliver a spanking.

She was surprisingly strong, although the sting of her hand was nothing compared to the humiliation of it all, of having pooped her pants and had it witnessed by someone else who was now spanking her. The girl alternated between the diaper, squelching the mess around and making Rosie even more aware of her icky accident, and her legs, which really did hurt, and made her thighs turn pink, making sure anyone who looked at if she was wearing something short enough would know she'd been punished.

"Now," the girl said when she was done, picking up the chair and putting it in the corner, "you're going to sit right here while I tell the officers you are the girl I saw, and that I have your purse, so you can pay for that outfit after all."

"B-But..." Rosie sniffled, "what about my real clothes?"

"Well, I'm sure they're somewhere," she shrugged, smirking. "I can't imagine you came into the store dressed like that! But I don't know where they are!"

"They were in the fitting room!" Rosie stomped her foot, glaring at the girl. "You can't just take them!"

"You sit your messy, spanked backside down right now, Rosie," the girl ordered, Rosie obeying instantly, wrinkling her nose as her bottom sank into her mess. "I can tell them I was mistaken, and the purse doesn't belong to you at all. What are you going to do then?" Rosie didn't have an answer for that, so, cheeks red, she turned her face to the corner and waited as the attendant knocked on the door.

She sat there for what felt like another long stretch before she heard the door open again. The female security officer was there this time, handing her the tiny skirt and the 'Brat' shirt, not questioning the position she'd found Rosie in, just standing by and waiting for her to get dressed.

Rosie gladly took her purse, trying to hold it in front of herself, to hide the diaper, although it was really the back that she wanted to keep hidden the most now. The purse wasn't big enough for either side, though, not really. She was escorted to the nearest cash register, where the security officer handed over the tags and watched Rosie pay for them, then led her to the door, sending her outside with a final whap to her lumpy bottom.

Rosie had been hearing her phone chirp as she walked to the register, and waited for her credit card to clear, but she hadn't dared stop to check it. She wasn't about to do it in the parking lot, either, when all she wanted to do was get to her car, go home, and get cleaned up. She almost didn't bother after she'd sat down in the driver's seat, blushing as she was reminded anew of her accident.

She took a moment to calm herself down before starting up the car, however, and, when she heard the phone go off again, she finally reached into her purse and looked at it to see what was going on. She had quite a few notifications, in response to some of her pictures, apparently, although she had no idea which ones were getting so much attention all of the sudden.

She tapped on the notification, her eyes going wide and her cheeks burning as the album loaded. There, on her Facebook, already getting showered in more replies, more quickly, than she'd gotten to anything she could remember posting before, were the pictures she'd taken in the fitting room.

How?! She knew she hadn't done that! And her phone was set to lock automatically, so, even though the attendant had found her phone, there was no way she could have done it!

Except... She had left the video running, so the screen wouldn't have shut off. It was set to auto-play, too, so it had just kept going, until the attendant had unlocked the door and found it there. And she was sure she'd left her Gallery app open, too, the pictures just out there, ready for the girl to find and post.

Not only that, Rosie realized, as she looked deeper into it, the attendant had posted them on her own account, tagging Rosie in them there, and adding a few more. They were more grainy, clearly taken from the security camera's monitor, but they clearly showed Rosie messing her diaper, getting spanked and sitting in the corner.

Rosie scrambled to delete the ones on her page, but, judging by the number of replies, the damage had already been done. And who knew how many of her friends had saved them already?! By now, the whole world surely knew the truth about her, that she was just a big brat, who not only deserved to be punished and kept in diapers, but who clearly needed them.