"Such a wet girl!" Robin cooed as Sierra's mind finally snapped fully awake, the events of that morning following slowly afterwards as Robin pulled down the diaper she'd just untaped and began wiping Sierra clean. "Maybe we need to think about doubling you up overnight, huh? These are so thick I thought one would be enough, but you're a regular Niagara Falls!"

"No!" Sierra whined automatically, remembering halfway through that her braces would just make that the opposite. She raised her hands to her mouth, blushing as her hands, newly wiped off by Robin, got even more oatmeal on them.

"I'm glad you agree," Robin smiled. "And that you realize this is for the best... That makes this so much easier!"

Sierra wasn't really sure what to say, so she kept quiet, cheeks blazing as Robin kept wiping down her crotch, mortified at her faint memories of that morning. She'd been soaked when she woke up, enough to be fully regressed by her diaper, which led to her bawling when Robin was nowhere to be seen. When the woman had finally returned, after what felt like an eternity, Sierra had excitedly tried to get out of her bed to run to her, but she'd been so clumsy, she'd fallen right on her face as soon as she stepped out of bed, which only led to more tears.

Since Sierra had been sent to bed with no supper the night before, Robin had brought her two bowls of oatmeal that morning, telling her, "I know you weren't a big fan, but this is the healthiest thing they have, so I want you to be a big girl and give it a fair chance, okay?"

Sierra, of course, was determined to show how much of a big girl she was, so she'd dug into it, quickly abandoning the spoon, since it was so hard to hold, and resorting to using her hands to shovel it in, and while a lot of it had wound up on her pajamas, she could feel plenty sitting heavily in her tummy already. Worst of all, afterwards, Robin had said, "Well, I'm glad to see you changed your mind... Or are you just that hungry? I'm sorry, sweetie! Do you want more?"

And Sierra had nodded! She'd even tried awkwardly to get off the chair and march over to the door in her drenched diaper and oatmeal-encrusted PJs, but thankfully Robin had told her, "Why don't you get cleaned up a little first, okay? Can you wait that long?"

Sierra had nodded, not that she really had much of a choice, then just stood there, shifting her weight from foot to foot, unsure of what to do next. After a minute or two, Robin asked, "Do you want some help, sweetie?" Sierra nodded again, which should have been humiliating, but in all honesty, it was probably a good thing, since she couldn't have gotten her diaper off on her own anyway.

And now she was here, lying on her crinkling, plastic-sheeted bed, stripped of her messy PJs, hands briefly cleaned, since she had been trying to 'help' Robin, even after the woman told her not to, getting her diaper changed. Any faint hope she might have had that Robin could still think of her as an adult was dashed after what that infernal regression spell on her diapers had made her do!

That was only confirmed when Robin paused after finishing with the baby wipes. "Sierra," she said, sounding a little more serious, "do you want to try your Pull-Up now?"

"Yes!" Sierra nodded. She would have wanted it anyway, but especially now, to try to take her mind off of what had just happened.

"Are you sure?" Robin asked. "Remember, you're only getting one today. Are you sure you're ready for it? If you just want to play it safe with your diapers, I won't hold it against you."

"I want my Pull-Up!" Sierra insisted. "I'm ready, I promise!"

"We'll see," Robin said skeptically, though, thankfully, she shrugged. "Well, it's your choice, at least for now. Go get today's pair!" She helped Sierra off the bed, giving her bare bottom a light pat, sending her in the direction of the six Pull-Ups Robin had decorated for her the day before, with the remaining days of their vacation printed on them.

As Sierra got closer, however, she realized she couldn't read the days of the week printed on them. She reached up, trying to lift her glasses just enough to make sure she didn't grab the wrong pair, but, to her shock, there was nothing there. She hadn't put the glasses on yet, but she still couldn't read! The spell was lasting longer and longer the more times she had to wear those stupid things! How far was this going to go?! She shivered at the idea that, because of Samara's spell, she might end up having to re-learn her ABCs.

"Come on," Robin said. "Just get the one for today!"

At last, after a bit of debate, Sierra grabbed one and brought it back to Robin, who shook her head. "Don't be silly, you know it isn't Friday yet," she told the girl. "Get the right one!"

Sierra trudged back to Pull-Ups, setting the one she'd picked up down. She studied it, trying to decipher what each of the letters was, now that she knew it said 'Friday', hoping to use that to reason on which was the correct pair. Before she could, Robin spoke up again. "Sierra, I don't want to spend all day on this!" Sierra snatched up another Pull-Up, but even before she reached the woman, she could see from her expression that it was wrong. "This isn't funny, Sierra. If you want to wear your trainers, bring me the right one, or else you can just wear your diapers instead," she said sternly.

Sierra turned, thinking that she would at least have a better shot now, since she had ruled out two of her choices, but after returning to them, she couldn't recall which was 'Friday'. She whimpered, stomach churning anxiously while she stared, desperate to get this right. The longer she looked, the more she felt like the cryptic runes on the training pants made a little sense, and she might have been right, since, once Robin cleared her throat and Sierra grabbed one of them, the woman didn't make her try again.

It was humiliating just how mature she felt once the Pull-Ups were yanked up her legs, compared to how the diapers had felt. She was an adult, and should be used to real panties, but the first couple days of this vacation had been so mortifying, these underthings meant for toddlers were making her feel practically grown-up.

That feeling quickly faded when Robin helped her finish dressing, picking a yellow sundress short enough for the wetness indicator of Sierra's Pull-Ups to show beneath the hem even while she was standing perfectly still, though even that was better than how much of the much bulkier diapers would have been showing. Robin set her on the edge of her bed to pull a pair of socks onto her feet, then velcro her sneakers in place, making Sierra's trip around the bed to fetch her glasses much harder than it otherwise would have been, as she stumbled and tripped over herself, hating herself for wishing she could be holding Robin's hand.

"Oh, silly me!" Robin exclaimed once Sierra had reluctantly slid the glasses onto her face. "I forgot this!" Sierra turned, cheeks blazing when she saw the woman holding one of the frilly training bras Samara had chosen for her, this one covered in butterflies. "Do you think you need it?"

Sierra hesitated. She knew someone her age should wear a bra, though generally one that was less childish looking than any of the ones she had to choose from, but she also knew Samara had enchanted them to shrink Sierra's already petite breasts while she wore them. Before she could decide, however, Robin shrugged. "I don't think anybody will be able to tell the difference," she said. "Besides, I'm sure you're ready to finish breakfast by now, huh?"

"A-Actually," Sierra spoke up, "I think I'm full now."

"Are you sure?" Robin asked. "You seemed very hungry earlier, and I don't plan on bringing snacks to the museum, so we won't eat again until lunchtime."

"Museum?" Sierra squirmed at the thought of walking through a museum dressed like this.

"Yes, I told you this morning," Robin said. "I think we'd better have one more bowl, okay?"

"I'm full!" Sierra repeated, but Robin took her hand anyway, ignoring her and leading her to the elevator, through the lobby to a little alcove with some breakfast foods set up. There were little boxes of cereal, muffins, danishes, donuts, plenty of things that looked yummy, but, of course, Robin took her straight to the oatmeal.

"I wanted to make sure you knew how to do this, anyway," Robin said. "Maybe tomorrow you'll be up early enough to make your own!"

Sierra hoped not, since, if she didn't manage to stay dry overnight, she would hardly be in a position to be seen in public at breakfast-time. "It's very easy," Robin assured her. "You just open the package and put it in one of these bowls, then pour the hot water in!"

Sierra watched boredly while Robin lifted the styrofoam bowl to the nozzle of the hot water dispenser, only to let out a tiny gasp once the water actually began to drip out, the sound of it filling Sierra's ears, and, with them, her bladder. She tugged desperately at the hem of her dress, as she watched the bowl slowly fill, trying to will the water to come out faster. She couldn't lose her Pull-Ups already! She'd barely been in them five minutes!

Thankfully, Robin turned the water off before Sierra's bladder burst, leading the girl over to a small table, setting the bowl down on it. "Do you want some juice, too?" she offered.

Sierra shook her head, all too happy to heed the woman's warnings to let the oatmeal sit for a minute to cool down. She stirred the grey stuff, trying to think of some way to get out of eating yet another bowl, especially after she'd so enthusiastically downed the first two that morning, and practically begged for more.

It was already made, however, and the longer she sat there, the more people walked by. It was bad enough, knowing that any of them just had to look in her direction to see her training pants quite easily, especially since she was sitting, but it got even worse when some of them stopped to pour coffee or juice for themselves, causing a liquid trickling sound that made her all the more uncomfortable, and desperate for a bathroom. It didn't take long to realize she had no choice but to eat if she wanted to get out of there anytime soon.

She was about halfway done when she saw Chloe and her parents step out of the elevator. She watched them, wide-eyed, trying to will them not to notice her, to walk out of the hotel and go do whatever, away from her. Unfortunately, they walked straight towards the food, the mother catching her staring before she could look away and waving.

Sierra blushed, letting her hand twitch up slightly, not wanting to be rude, but also not wanting Robin to notice. Unfortunately, the latter didn't work, and Robin asked, "Who are you waving at?" She turned, then smiled. "Do you want to go say hi?"

Sierra shook her head. The last thing she wanted to do right now was face that little girl, not after she'd called Sierra a baby. Sierra wasn't scared of her, or at least she didn't want to admit she was, since she was no more than six years old, but she didn't feel like speaking to her right now, either.

"Well, you finish eating, then," Robin told her, standing up and going over to meet them. Sierra couldn't hear what they were saying, but just watching them talk to one another made her nervous, even more than the growing pressure in her bladder. What was Robin telling them?!

The one good thing about it, though, was that Robin had her back turned. Sierra looked towards the trash can. Two and a half bowls of oatmeal was definitely better than three, after all. She gave it a few seconds, waiting for Robin to somehow sense her plan, then hopped down and started to walk towards the trash as quickly as she dared, not wanting to trip, or draw too much attention to herself.

She'd barely made it to the other side of the table when Chloe chirped, "Good morning, Sierra!"

Sierra jumped at the sound of the girl's voice, and her name, quickly sitting as she saw Robin turn her head back in her direction, acting like she'd picked the bowl up to get it closer to her mouth. "Don't be rude, Sierra," Robin said.

"Good morning, Chloe," Sierra grumbled, glad the girl didn't decide to join her at the table. Robin turned back to the girl's parents, but Sierra didn't dare try her plan again, not with Chloe's eyes on her, so she finished up the oatmeal herself, forcing down the last bite as Robin returned to the table and the family started fixing their breakfast, which, unfortunately, involved pouring themselves cups of juice.

"Well, now we have some plans for this afternoon," Robin told her cheerily.

Sierra was curious, of course, but she had other things on her mind. "C-Can I use the bathroom?" she asked quietly.

"Of course!" Robin beamed, reaching down to check Sierra's Pull-Up. "I'm so proud of you for asking, and staying dry!" Sierra wriggled in her seat, wanting to slide under the table, sure everyone else eating breakfast could hear. "Can you wait until we get up to our room?"

Sierra gulped. She'd already had one accident in the elevator, and really didn't want to have another! She might be able to make it, but there were still people going through the line, each one making it harder and harder for her as they got something to drink, or milk for their cereal, or water for tea or oatmeal. Even if they hurried, Sierra had a feeling she could hear it all the way to the elevator. Unfortunately, she couldn't just say no.

"I... um..." she bit her bottom lip for a moment, then, luckily, figured out what to say. "Is there one down here?"

"Of course!" Robin nodded, holding out her hand. "Come on!" Sierra took her hand, trailing after her as they threw away Sierra's empty bowl, then walked through the lobby, past Chloe and her parents, and into the bathroom. Sierra hoped that asking would earn her some leeway, but Robin made her go into the handicapped stall so she could follow her in, standing there and watching while Sierra hiked up her dress and lowered her Pull-Ups before sitting on the toilet.

She had to go badly enough that, for once, she was able to ignore the fact that Robin was standing there, just waiting for her to finish. Sierra planned to grab for the toilet paper as soon as she got off the toilet, but Robin was too quick, stepping across the stall and reaching for the paper herself once the tinkling from below Sierra stopped.

"I can wipe myself!" Sierra protested, but Robin didn't budge. Sierra sighed, reluctantly getting up and letting herself get cleaned up, then taken to the sink to have her hands washed, which made her bladder begin to fill again. This was so unfair, she thought to herself with a pout. How was she supposed to stay dry like this?! But, of course, that was probably the point. She was sure Samara had weaved all these spells together to make sure Sierra wound up in diapers as quickly and as often as possible, and she had no doubt that suited Robin just fine, too.

They headed back upstairs, where Sierra sat on her bed, feet swinging as she watched Robin pack a bag, including several diapers, which almost felt like a threat. Once she was done, she went into the bathroom herself, leaving Sierra to jam her hands over her ears to try to block the inevitable sound of water, which did very little good at all. By the time Robin came back into the bedroom, Sierra's bladder already felt ready to burst again.

"C-Can I use the bathroom?" she mumbled.

"Sierra, you just went!" Robin reminded her, kneeling down in front of her. "Listen, I know you want to keep your Pull-Up dry, and I'm very proud of you for trying, but this isn't the way to do it. If you really do need to use the bathroom every five minutes, then you may just not be ready to try Pull-Ups at all. Is that it?"

Automatically, Sierra started to shake her head before she could stop herself, blurting out, "I'm ready for Pull-Ups!" much louder than she normally would have.

"Good girl," Robin smiled. "If you can wait until we get to the museum, you can try there, all right? Just try to hold it during the car ride."

"Okay," Sierra agreed, not that she had much choice. She took Robin's hand, trailing behind her as they returned yet again to the ground floor, Sierra doing her best to squeeze her legs together and walk somewhat normally at the same time. It was bad enough knowing that anyone looking at her would be able to catch a peek at her training pants, she didn't also want to make it obvious how badly she was struggling not to wet them.

The ride felt long and excruciating, and by the time it was over, she was practically ready to leap out of the car and run for the museum door, though she stopped herself, knowing she would probably just trip over herself if she did that. Instead, she waited as patiently as possible for Robin to pay, then walk around the car to her, squirming and wriggling the whole time, her short skirt bouncing with every move and making her Pull-Ups all the more obvious.

The museum wasn't terribly packed, but there was still a bit of a line at the entrance while everyone paid for their tickets. Sierra groaned as she saw it, pressing a hand to the crotch of her training pants, which was instantly swatted away by Robin. "We're in public!" she reminded Sierra, as if she could forget.

"Can I go to the bathroom while you get the tickets?" she asked desperately, blushing.

"You really have to go that badly again?" Robin raised an eyebrow. Sierra nodded. "Well, I'm sorry, but we can't get inside until we get a ticket," she shrugged. "I'm sure it won't be long."

Sierra watched the line slowly move forward, a person at a time, and chewed on her bottom lip anxiously. Could she make it? She had to do it, to prove she didn't need Pull-Ups, much less diapers! She pressed her thighs together with as much determination as she could muster, trying to concentrate only on staying dry.

It worked well enough until the line got closer to the entrance, and, every time the door open, she heard something awful inside. It was faint at first, getting louder and louder the more they advanced through the line. When she dared to look up once they were almost at the head of the line, when the door opened, she saw it, and nearly screamed. It wasn't fair! There was a huge fountain in the middle of the main hall, constantly sending spurts of water up in seemingly random patterns.

"C-Can we do something else?" she whined to Robin. "Museums are boring."

"I wish you would have told me you felt that way before now," Robin said. For a moment, Sierra thought it might have worked, then Robin continued. "I'm sure you'll enjoy it once we're inside. I want to see it, anyway."

"M-Maybe..." Sierra started to suggest, but Robin just stepped forward to purchase their tickets. Sierra wasn't sure if it was her imagination, but it seemed like she could hear the fountain constantly now that she was right by the door, and it was more than she could handle. She gasped, her hands shooting back to her Pull-Ups and staying there, with Robin preoccupied, but it didn't do her any good. Already, she could feel the padding warming and swelling as her bladder gave in.

"Come on," Robin said. Sierra stared up at her, trying to keep tears from filling her eyes as she took the woman's hand and followed her inside. "Now, do we need to see which way the bathrooms are?"

Sierra hesitated, the spell keeping her from denying it. "I-I'm okay now," she lied, but it was obvious even to her that she was lying. She fidgeted as Robin gave her a stern look, then gasped as her skirt was lifted, right there, and a hand was pressed against her training pants.

"Sierra!" she scolded. "Already?!"

"I-I told you," Sierra pouted. "I asked to go at the hotel, and you told me no, so it isn't my fault!"

Robin shook her head, grasping Sierra's hand tightly as she dragged her to the nearest restroom. "You went just before that, young lady, and yet, you're already almost leaking! I was with you almost every second, and unless you downed a gallon of water while I was in the bathroom, there's no reason you'd have to go again this much so soon, unless you just didn't go properly when I took you to the potty."

"I-It's hard to go with someone watching," Sierra shuffled her feet sheepishly.

"You knew the rules, young lady," Robin informed her, taking her into the family bathroom and flipping down the changing table on the wall. "Besides, even if I wanted to believe you, I didn't bring another Pull-Up." Sierra gulped as she was lifted onto the table and Robin reached into her purse, pulling out one of the diapers. "What do you have to say for yourself?"

Sierra thought it was a rhetorical question, but Robin continued staring at her expectantly after pushing her flat onto her back and flipping up her skirt. She squirmed. "I-I'm sorry?"

Robin shook her head, pulling the sides of the training pants apart, then starting to wipe Sierra off, pausing only to look at her wrist. "That wasn't even an hour, young lady. You keep trying to tell me you're a big girl, yet you couldn't even make it an hour in your Pull-Ups. I don't even want to think about what would have happened if I'd actually let you wear big girl panties, like you wanted!" She balled up the Pull-Up with the wipes, then slid the huge, bulky diaper under Sierra, who whimpered. "I want you to be honest with me, Sierra. Do you need your diapers? Are you wasting my time pretending to learn to use the potty?"

"I-I'm trying!" Sierra promised. "I'm doing my best!"

"That's what worries me," Robin replied, taping the diaper snugly into place. Sierra whined, squirming on the table, knowing it wasn't coming off now until somebody else untaped it. Robin helped her down, leaving the girl to tug at her skirt, trying to hide the bright pink plastic, with its childish designs, while she finished cleaning up. "If that was the best you can do, then you aren't ready for anything other than those."

"I am, though!" Sierra protested. "I-I can do better, I swear! Just let me try again when we get back to the hotel!"

"There aren't any more Pull-Ups for today," Robin told her. "We'll see how you do tomorrow, but I'm not expecting much."

Sierra's cheeks were almost the same color as her diaper as Robin helped her wash her hands, then led her out into the museum. Almost instantly, Sierra knew this wasn't going to go well. The sound of the fountain seemed to fill the whole place, or at least as much of it as they'd been in so far, and, within seconds, she was already struggling not to pee again.

To make matters worse, Robin stopped at every sign to read them, in detail, while Sierra hung back, whining. With her glasses on, there was no way she could read anything, so nothing they were staring at meant anything to her, other than a longer time spent feeling her bladder try to explode, until, inevitably, she lost control. Instantly, she felt the haze settle over her mind, and one of her thumbs wandered up to her mouth.

Unfortunately, it didn't stop there. Once it had begun, her bladder refused to stop entirely, continuing to trickle into the thick padding between her legs as she followed Robin, anxiously watching as the next block began to turn colors. She jumped anytime she spotted anyone else, trying to hide behind Robin as best she could, trying in vain to will her bladder to stop.

When it became obvious she was just going to keep going, she bashfully tugged at Robin's clothes, only to be ignored. "Robin, can you change me?" she asked finally, her words muffled by her thumb. She stomped her foot, annoyed, when Robin didn't answer, but she was too embarrassed to ask again, so, instead, she sniffled, feeling tears well up in her eyes. She was stuck, helplessly wetting herself and regressing more and more, with that awful fountain making sure her bladder was always full.

"I wanna go home!" she wailed, plopping herself down on the floor suddenly, diaper squelching under her. Almost all the blocks had changed color already, and Robin still didn't seem to care. "This pwace is dumb! I wanna go home!" She stomped her feet, slapping her hands on the floor.

In a flash, she had Robin's attention, but she no longer wanted it. Robin pulled her back to the bathroom, still crying and sucking her thumb, and pulled off her wet diaper, cleaning Sierra up and making her come to her senses, to feel even more humiliated at what she'd just done in the middle of the museum.

"Maybe I will call that maid," Robin told her, yanking the fresh diaper up around her. "This trip was supposed to be about us getting to know each other, but if you're just going to behave this way whenever we do something I'm interested in, I'm fine leaving you to sulk in your diapers in the hotel room."

"I-I'm sorry!" Sierra said, but Robin was no longer listening. They marched out of the museum, waiting by the road for a minute for a car. "Wh-where are we going now?" Sierra asked while they waited.

"You're going to take a nap," Robin informed her. "After I warm your little backside."

Sierra gulped. "B-But..."

"No, young lady," Robin said. "I've had enough. If you're going to continue to behave like a brat, I will treat you like one. I already have both you and your father's permission to spank you, and that's exactly what I'm going to do."

The ride back to the hotel was even more uncomfortable, even without a bursting bladder. Sierra kept sneaking glanced at Robin, hoping she'd look like she'd calmed down a little, or changed her mind.

She didn't. As soon as they walked into the room, Robin stepped into the bathroom, returning with a large, wooden hairbrush. "I-I'm sorry!" Sierra squealed, trying to back away. Robin caught her easily, sitting down on her bed and pulling the girl over her lap, yanking her dress up and off her head and sliding her diaper down. With almost no warning, the brush slammed down against her bottom, making her yelp, tears springing to her eyes.

It was relentless, Robin barely giving her a break to blurt out her apologies in between swats, her brush making sure to hit every square inch of her backside at least once, leaving it pink and throbbing, so that she wouldn't forget any time soon that she'd been spanked like a little girl, bawling the whole time. She hadn't felt this helpless in a long time, maybe since she'd wandered into that other dimension, and discovered the robotic nannies were resistant to her magic.

As her diaper was yanked back up over her sore bum and she was tucked into bed, still sniffling, she stared up at the woman. She'd seemed so normal, Sierra had almost forgotten what she was so sure she really was. That spanking had certainly proven that she was the adult here, but could she be more? If she really was a robot, here hunting Sierra down, she surely had Sierra right where she needed her already. In bed for a nap in only a diaper, freshly spanked, no wand in sight. What else could she be waiting for?

"I don't want to hear a peep out of you until I tell you it's time to get up," Robin ordered. "Or else we'll cancel your little playdate, and you'll stay in here the rest of the day."

Sierra had forgotten about the arrangement Robin had made with Chloe's parents, probably because she hadn't been a part of it herself. She wasn't sure she wanted to spend any more time with the little girl, but, at the same time, she wanted even less to make Robin more angry at her. "Y-Yes, ma'am," she gulped, nodding her head and squirming down deeper under her covers, determined not to earn herself another spanking.