Matti's head spun as she watched Kiara cheerfully began to pull things out of the bag Skylar had brought, spreading out a changing pad and then setting diaper changing supplies all around it. She still couldn't quite process what was happening, or, rather, what was about to happen if she didn't find a way to stop this. She was about to be diapered by a pair of high schoolers! They were seniors, sure, and the grade she'd skipped meant they weren't that much younger than her, but that only took a bit of the sting out of it, especially when Kiara was so cute and little. She looked like she was the one who belonged in that diaper Matti had just seen her take out of the bag and give a squeeze, not Matti!

"Kiara," she knelt down next to her desperately. "Listen, you don't have to do this! There's no need...!"

Kiara seemed to ignore her at first, continuing to go about her task happily, taking something else out of the bag. It wasn't until she turned towards Matti that the older girl realized she had heard, and that she was doing something about it, as she pushed something into her mouth. "Hey!" Matti's eyes widened as she felt something soft pushing between her lips, reaching up in surprise to feel a plastic shield over her lips now, with a ring dangling in the center of it.

A pacifier. Kiara had just given her a pacifier! She could have taken it out right then, but she was too stunned, plopping down onto the floor, her Pull-Up squishing beneath her, starting to cool down now, making them even more uncomfortable, even more embarrassing to be in. She whimpered, feeling the paci's nipple shifting in her mouth, the sensation strange and new, and, to be honest, not entirely bad. Somehow, in all her misadventures, she'd never had one of those used on her before, though Valerie did delight in having her suck other things. This was far smaller, and more inviting, even if it did make her feel particularly small and vulnerable as she sat there, fidgeting in her soggy trainers.

"See?" Kiara beamed. "That's why I asked you to bring one of those. I knew she wasn't too old for them!"

"Your instincts were right on," Skylar agreed with a nod. "You never can tell. My sister hasn't wanted anything to do with pacis for a while now, but that's another thing that happens at different paces for everyone."

Wonderful, Matti thought. Another way she was more immature than a toddler. How must she look to Skylar? Kiara seemed to have told her she was an actual child, dressed up in this slutty, yet immature, outfit, in soaked Pull-Ups, and so easily silenced with a simple pacifier? The girl must think that Matti was trying her best to seem more grown-up than she was, and was failing miserably at it, despite Matti, in reality, being older than her.

"I had a feeling," Kiara shrugged. "I told you, I'm a natural."

Skylar gave Kiara a patient smile. "I know that," she said. "Trust me, I've told mom that exact thing plenty of times."

Kiara pouted, making Matti blush to see how adorable that made the girl about to put her into a diaper look. She really shouldn't be letting someone that cute push her around like this, and yet here she was, sucking helplessly on her paci, not knowing how to stop it. "And she knows me, too! She knows I'm responsible! It's not fair!"

Skylar patted Kiara on the shoulder automatically, in a way that made it clear how used to this conversation she was. "But Mathilda's mom believed you, didn't she? And once she tells all her mom friends what a great job you did, I bet you'll be swimming in babysitting job offers."

Kiara squirmed slightly, a hint of guilt flashing in her eyes. "Y-Yeah," she nodded. "Yeah, I bet you're right."

"She's not babysitting me!" Matti mumbled, blushing harder at how childish her voice sounded. She hadn't even thought to try to take the pacifier out, which made it harder to speak properly, her situation making her voice shift into a higher octave to match. What was wrong with her?! She ought to be proving she wasn't a little girl, but her whole body seemed to be betraying her, showing off how badly it wanted this, no matter how much she would have tried to deny it out loud.

"Sorry," Skylar corrected herself condescendingly. "You'll get lots of tutoring job offers."

Matti whimpered as the two younger girls giggled, obviously finding it cute how Matti was insisting on calling it that, as if that word made her seem more mature while she was moments away from being diapered, when they all knew it was just doing the opposite. "No!" Matti whined. "I'm not..!"

What was she going to say? Was she really going to admit the truth to Skylar? She didn't know the girl, but that hardly mattered. Skylar had so easily accepted Matti as a kid, had seen her soggy Pull-Up and watched how eagerly she'd taken to her pacifier. Wouldn't it be more embarrassing now to tell her the truth?

It was almost a blessing when Kiara cut her off by unfolding the diaper with a crinkly snap, setting it down on the mat and giving it a pat. "Here we go!" she declared.

"I'll give you two some privacy," Skylar offered, stepping away. Matti was glad for that, at least, not wanting an audience.

"Don't go too far," Kiara stopped her short. "In case I have any questions."

She gave Matti a grin, Matti shuddering as she realized the true reason for what Kiara had done. She could tell that Matti had been hesitant to tell Skylar the truth, and she knew that keeping her friend there would make it that much harder for Matti to fight back without doing exactly that. Kiara was clever, and, while Matti had thought the same of herself at one time, her head was clouded with excitement over what was happening, despite how humiliating it was, and from everything that Valerie had been doing to her. Maybe at one time she would have been a match for Kiara, but now she wasn't so sure.

"I don't wanna wear diapers!" Matti sniffed.

"Sweetie," Kiara purred, reaching out to grab Matti's hand, pulling her in closer to her, and the changing mat. "We talked about this. Every little girl should match her dolly! And now you can! Don't you remember? That's why you wanted to dress your dolly up like that! We talked about this, silly. There's no need to be shy about it now that Skylar is here! She doesn't mind!"

Matti frowned, feeling confused. "B-But we didn..."

Skylar spoke up. "No, of course I don't, sweetie. I think it's cute. So many little girls try to grow up too fast." Matti blushed, sure the girl was talking about her outfit, oblivious to the fact that Matti was more than old enough to dress this way if she wanted. Not that she did, but she could have! "This is just a little reminder that you don't have to."

"I bet I know what's wrong," Kiara said. "You don't have your dolly! Skylar, could you bring it over?"

"I don't..." Matti started.

"Of course!" Skylar exclaimed, hurrying over, doll in hand. "I bet that's exactly what has Mathilda all worked up! Were you lonely, sweetie?" Matti shook her head, though Skylar just gave Kiara a knowing smile, as if the two of them knew better than to fall for that. "What's her name?"

Matti groaned into her paci, not wanting to say it, but too worked up to come up with anything else, try as she might. "Mattix," she admitted.

Skylar blinked, though, otherwise, she took it in stride. "What an interesting name!" she commented. "I bet she feels better being back with you, too!" She pushed the doll into Matti's arms, then stepped away with a smile.

Matti swallowed as Kiara grabbed her skirt, giving it a tug, yanking it down to leave Matti's soaked trainers on full display before Matti could react, then reaching for the Pull-Up. Matti let go of her doll with one hand, grabbing the girl's hand with her other, positive she could push it away as she felt her skirt sliding down her legs, pooling around her ankles, definitely the less important thing for her to defend at the moment. She felt Kiara's grip loosening, grateful the girl wasn't any bigger, though she did worry that, if things went too poorly, Kiara would call in Skylar for help. That wouldn't end so well for Matti, most likely, but if Kiara was trying to prove she had what it took to be a babysitter, she'd probably want to avoid that almost as much as Matti did.

"Mathilda, behave," Kiara scolded. "Or does my Mommy need to have a talk with your Mommy?"

And there it was, the ace up Kiara's sleeve. Matti stared daggers into Kiara's eyes, but the girl refused to budge, holding Matti's gaze, and her hold on the waistband of Matti's Pull-Up, daring Matti to say something, to do something. After a few seconds, her gaze flicked downwards, and she let out a giggle that made Matti squirm even before she realized what had caused it. The ring on her paci was bobbing up and down as she sucked on it, harder and harder, guaranteeing the anyone looking knew that she not only had the thing in her mouth, but that she was using it, and quite enthusiastically at that.

She kept looking into Kiara's eyes, but she could feel that the balance had shifted, and, a moment later, she heard a rip. Matti squeaked, looking down to see that Kiara had already torn open one side of the Pull-Up. Matti's tummy churned, knowing that she had nothing else to change into, and that, as short as her skirt was, she wasn't about to go commando for the walk all the way back to campus. She had no choice now.

"Okay," she whispered.

"Good girl!" Kiara kissed her on the forehead. "I knew you had it in you!" Matti nursed harder on her pacifier, feeling both hands close around her doll automatically, despite herself, while Kiara ripped open the other side of the Pull-Up, sliding it out from between Matti's legs. "Look at how much this sags!" she teased. "You almost leaked! That's why you need to be in diapers, sweetie. We wouldn't want you to be embarrassed by making a puddle, would we?"

"You definitely don't," Skylar spoke up from the other side of the room, Matti freezing, afraid to turn to see if the girl was looking at her, if she saw her bare bottom. "That's so much worse than a wet diaper! This is really for the best, Mathilda!"

"It so is," Kiara nodded, pulling a baby wipe free of its pack and starting to clean Matti up with it, Matti flinching at the cool, damp touch of the cloth. "We're only looking out for you, sweetie. Now, sit your little bottom down right here, and we'll be done in no time!"

She patted the diaper, the sound of crinkling sending a shiver up Matti's spine once more. It felt even more real now, her backside clean and fresh and bare, ready to be taped into it.

"Come on," Kiara beckoned, kneeling down, giving Matti's hand a tug. Weakly, Matti felt herself following, knees bending obediently, knowing she didn't have any other options, body on auto-pilot as it plopped down right in the center of the waiting diaper. She wore diapers to bed every night, humiliatingly, but this felt very different, whether it was because Kiara was doing it to her and not Valerie, or knowing that these were actual baby diapers, meant for Skylar's little sister before she'd outgrown them.

Maybe they wouldn't fit, Matti told herself as Kiara sprinkled baby powder onto her crotch. There was definitely a part of her that would be disappointed by that, but it would get her out of this mess, even if it would cause another when it came to getting back to campus. There was no way she could fit into something made for a toddler, after all! She was small, but she wasn't that small!

"There we go!" Kiara cooed. "That will keep you from getting any nasty diaper rash!" And, with no further warning, she pulled the front of the diaper up between Matti's legs, pushing her thighs apart with the padding. Matti watched, squeezing her doll tighter as she saw how well the diaper wrapped around her, her hopes shrinking as Kiara pulled the first side up, tearing open the tape and pushing it onto the landing strip. "One down!"

That didn't mean anything, Matti thought. Anyone could get one side to close, surely! It was the second side that was the real test, and that wasn't going to work! She was too big for that! She was a grown-up, less than a year away from being a college graduate!

And, with one more rip and another press, she was, quite literally, Pampered. She sat up, shocked, staring down at herself. The diaper fit her like a glove, like it had been made for her. Or, perhaps, like she had been made for it. She whimpered, squirming in place, the bulky diaper following her every move, perfectly snug against her bottom.

"See?" Kiara declared, whisking Matti's skirt off of her feet, tossing it aside, leaving Matti there in her Barbie crop top, her Pampers, her paci, and her Velcro shoes, the combination pushing Matti's buttons in a way she hadn't expected. The shoes seemed to imply that this was a complete outfit, that she was ready to go out into the world like this, her diaper on full display. "You match!"

"Huh?" Matti blinked up at her in confusion, dazed.

"You and Mattix!" Kiara smiled, poking the tummy of the doll in Matti's arms. "You're twins now!"

"Oh, I have to see!" Skylar gushed, swooping over before Matti could react. "It's too cute!" she squealed, pinching Matti's cheeks. "Look at you!"

"N-No," Matti shook her head, cheeks burning, not wanting anyone to look at her.

"And look at this!" Skylar knelt down, sliding her finger along the leghole of the diaper, paying no mind to the fact that Matti was inside of it, apparently. Then again, Matti was just a little girl to her, apparently, too small to worry to deserve privacy, it seemed. "That's perfect, Kiara! You ARE a natural! Didn't she do good, Mathilda?"

Matti gulped, fidgeting. "Y-Yeah," she nodded, telling herself it was just so she could go with the flow, not in any place mentally to argue now. "Sh-She did." And she had. Kiara had done an excellent job turning her into a bigger version of her baby doll. She just hoped that was all the girl planned to do to her, because, at this point, she wasn't sure she'd be able to stop her from doing whatever else she wanted.