An hour later, Aria peed herself.

Predictably, the when and why of her need to go was still unpredictable for her. It just started pouring out while she was struggling with her math homework. First a little, then a lot. Her diaper soaked it up, turning her padding spongy and damp.

When it happened, she just froze, unable to do anything while her now aching butt grew wet and warm. It actually made her spanked bottom feel a bit better, the now squishy padding even softer than before, but she would never admit that. Instead, she bolted out of her seat with a squish upon finishing. “Eewwww!”

She waddled out of her room, each step eliciting a wince, but it was hard to tell if it was from the piss or the spanks. The stale stench of her pee did nothing to help things. Aria was wrinkling her nose by the time she called out, “Sonata!”

“Yes?” A blue face poked out of the room down the hall.

Aria pointed to her skirt. Sonata tilted her head in confusion.

Groaning, Aria lifted her skirt, revealing her padding. The purple tint of the plastic pants didn’t make it obvious right away, but with effort one could see the damp stain on the crotch of Aria’s diaper.

“Oh!” The idiot sparked to life at the sign of a used diaper. “You went potty!”

Aria clenched her jaw. “Could you say it any louder?” she growled. “I don’t think Adagio heard you.”

Sonata blinked. “Oh, okay.” Leaning even further out her room she yelled, “Adagio! Aria peed herself again!”

A sharp laugh cut through the house.

Veins bulged on Aria’s forehead and neck, clenched fists shaking. She barely held back her anger. Fair is fair, that one’s on me. Should have seen it coming. But even acknowledging that took several measured breaths.

“Just…” Nope, still too angry to talk. She swallowed the mounting rage to finally say “change me already!”

“Sure thing, Ari.” Sonata finally stepped all the way out of her room, and right into Aria’s striking range. But the purple Siren let the opportunity pass by, if only barely. Getting out of her soggy diaper was just a little more important than beating Sonata to a pulp. A little.

Sonata took her hand and led her into the bathroom. “Lie down, please,” she said, ducking under the sink to fetch her changing supplies.

With a sigh, Aria found herself on the floor, stretching out across cool, octogon-shaped tiles. Her diaper squished against her plastic pants while she pulled up her skirt. “Just be quick okay? And none of that baby powder stuff, either!”

“But what if you get a rash?” Sonata asked. A glare answered her. “Okay, fine.”

Plastic wrinkled as a diaper was pulled free from its packaging. A tub of wet wipes hit the ground next to Aria, and the bathroom’s trash can was pulled up alongside Sonata. Finally, all of the set up was in place. Aria breathed her first sigh of relief in a while. Then Sonata outstretched her hand.

“Alright, give me the key.”

Ice entered Aria’s veins. “What?”

“The key,” Sonata reiterated. She wiggled her fingers. “You know, the one that unlocks your pants?”

The plastic offenders crinkled as Aria shot up. “I don’t have it!” she screamed. “You have it!”

Sonata’s lips pursed in a worried frown. “But… you took it from me, didn’t you?”

Aria’s eyes widened. She remembered taking the key alright, but it had been knocked from her hand when they’d fallen to the ground in a tussle. She’d just assumed Sonata had picked it up at some point. But if she hadn’t...

Aria’s head hit the ground, the thump masked by her groan. “It’s still at school!” she cried.

“Oh.” Sonata blinked. “Uh oh…”

“Yeah, ‘uh oh’, idiot!” Aria growled. Despair had already turned to anger, and she had to direct that somewhere. “Why didn’t you get it?”

“You were the one that wanted it so bad!” Sonata deflected. Her hand reached down to rub her rear. “And beside, my butt hurt.”

“It’s gonna hurt again real soon if you don’t—”

“Hey!” Adagio barked from the bathroom door. Her sudden appearance jolted Aria out of her rage, for a second. “What’s going on here?”

Almost instinctively, they both pointed at each other.

“Aria’s being mean again—”

“—She lost the key back at school—”

“—It wasn’t my fault—”

“—and now I can’t get changed—”

“—those spanks really hurt—”

“—because she’s an idiot!”

Adagio ground her teeth together. Their shouting match must have gotten old the minute it started, because she stomped her foot on the ground and yelled, “ENOUGH!”

Their mouths snapped shut. Adagio wasn’t the leader for nothing. “You two seriously need to cool it with the fighting.”

Sonata pointed. “But she—“

“I don’t care!” Adagio cut her off. “I do not care who started it. Words cannot describe how little I care.”

Sonata’s finger curled down. “Okay…”

Aria started to stand, wincing as her wet padding groped her undercarriage. “Whatever, I’ll just find some scissors and get this thing off.” She’d be happy to rid herself of the cursed plastic pants once and for all.

It was a dream that lasted all of a moment.

“Oh no you don’t,” Adagio snapped.

“What?” Aria snapped. “Why not?”

“You need to be able to wear them again. I still don’t trust you to keep your diapers on.”

Aria scoffed. Some truce they had. “Then Sonata can just buy another one.”

The idiot lit up at the prospect. “Yay! Dagi, I can get you a pair too if—“

“You’re not wasting anymore money on this baby junk,” Adagio barked. She’s already confiscated Sonata’s credit card, so she meant it.

“So what am I supposed to do then?” Aria growled. She indicated to her wet diaper. “I’m not spending all night in this thing.”

Adagio sighed. “Yeah, I kinda figured that much.”

“So? Aria demanded. Her damp padding was riding up against her crotch. If she didn’t get a solution soon, she was going to claw this thing off her with her bare hands.

Another sigh. “We’ll go and get the key then.” Adagio’s frown was prominent, but her words weren’t sarcastic, just reluctant.

“Excuse me?” Aria clenched her fists. “You want me to walk all the way back to school in this thing?” Her diaper squished at even the slightest movement. “Not. Happening.”

“Well it’s either that, or you stay in that thing all night,” Adagio stated. “What’s it gonna be?”

Aria’s throat was too dry to respond. She fidgeted in thought, bringing her knees together to test the sensation of her wet diaper once more. It was still awful. There was no way she was going to wait until they were back in detention tomorrow to get changed. Not to mention who knew what would happen down there until then.

“How are we even going to get in?” Aria asked. “School’s probably closed by now, right?”

“Oooh! We can sneak in!” Sonata suggested. “Like ninjas!”

That gave both Aria and Adagio pause. Sonata was the least ninja-like person they knew, and after one thousand years, that was really saying something. They shared a look.

“It’s just going to be me and Aria,” Adagio decided. She grabbed a handful of purple arm and led Aria out of the bathroom before the first complaint could even be lodged.

“Awww!” Sonata whined as the two sped away.

Aria breathed a sigh of relief. At least she’d be free of that idiot for a little while. But just keeping up with Adagio made her sopping diaper jostle against her inner thighs. Aria’s face was transfixed in a cringe. It looks like they were really doing this.

“Seriously, how are we going to get in?” Aria asked.

Canterlot High barely had a pulse. A few lights were on still from teachers stuck grading papers, janitors could be seen from the windows, and the faint calls of cheerleading practice could be heard all the way around the back. Three select groups of people that were still allowed to be here at this hour, and the two Sirens belonged to none of them.

If they were caught snooping around school after hours, it wouldn’t be pretty. And considering they couldn’t get anymore detention than they already had, that most likely meant another trip over the Vice Principal’s lap. Aria’s wet bottom winced at the memory.

“I’ll think of something,” Adagio said, quoting herself from the last time Aria has asked.

The entire walk here they’d been failing to brainstorm. Aria at least had an excuse, her diaper distracting her from even the most basic of thoughts. She couldn’t do anything as long as the squishy padding was licking at her nethers. But Adagio? She had no excuse. And if Aria learned she’d been dragged out here on a fool’s errand, she might just lose it.

“You better think quickly,” Aria growled. Her warm piss had already settled and cooled. Now it was just clammy against her hindquarters, which was somehow even worse than before.

Another call from behind the school, something from the cheerleader horde about Wondercolt’s being the best. But it drew Adagio’s attention nonetheless.

“Come on,” she demanded, taking the lead.

They circled around the school, Aria all the while wondering what the plan was supposed to be. But really, as the robotic chants from the cheer team grew louder, it should have become obvious.

“All right girls,” coach Spitfire blew her whistle at a shaky pyramid of cheerleaders. “Hit the showers.”

Adagio pressed herself against the brick wall, leering at the crowd from behind a corner. She pushed Aria against it too, the poor girl’s soggy rear squishing as it made contact. She groaned, and was shushed.

“What are we even waiting for?” Aria grumbled.

She got her answer when the back door of the school was opened and the cheer team poured inside. At the last second, Adagio rounded the corner and shoved her foot in the door before it closed. A way in.

Aria breathed a sigh of relief, shuffling forward in her wet pamps. At least there was something of a plan after all.

They waited a good minute before tailing the cheerleaders. The less chance they had to be discovered the better. That’s what Aria kept telling herself anyway, as pee-soaked padding rubbed against her inner thighs.

“Okay,” Adagio nudged the door back open and waved her in. “Let’s go.”

They slipped in, finding themselves just behind the gym. Locker rooms to the right, a hallway out to their left. Running water and gossiping girls filled the otherwise silent stillness.

“Finally.” Aria turned left, ready to make her beeline to the detention room and find her key. Adagio grabbed her shoulder.

“Hold it,” she barked, keeping her voice low.

Aria wanted to screech. “What?” she demanded. “What now?”

“We need to be careful,” Adagio whisper-hissed. “If anyone sees us we’re going to be in trouble.” Aria’s sore bottom ached. She knew what that meant. “And keep your voice down!”

“Fine!” Her voice lowered. “What’s your bright idea, then?”

Adagio tapped her foot, eyes darting around the room. Her head turned toward the locker rooms. “Come one.”

She slinked down to the girl’s locker room. Aria squished after her. She could manage her voice, but there was nothing to do for the soggy crinkling of her diaper and plastic pants combo. Cheeks red, she tugged her skirt down.

Adagio peeked into the room, motioning for Aria to follow as she ducked in. A few crinkles later, Aria had joined her.

The locker room was connected to the showers, just one door down. Steam was rising and the chatty cheerleaders were louder than ever now. Their uniforms littered the room around them, on the floor or the few seats available, hastily stripped off for that post-workout shower.

Curiosity gnawed at Aria. What good was this place to them? It wasn’t like there was a secret passage through the school squirreled away back here. It was a dead end! They weren’t any closer to the key like this.

“Hey!” She whispered through her teeth. “What’s your bright idea.”

Adagio plucked a cheerleading uniform from the floor, holding it against her body to measure the size. “This,” she said, turning around.

Two and two made four.

Aria was not happy.

“Are you kidding!” Her voice climbed a few decibels. Adagio snapped her hand over her fellow Siren’s mouth.

“Shhh!” She hissed.

Aria pushed the hand down. “Are you kidding!” She repeated, with a measured anger that was easier to keep low.

“Wish I was,” Adagio groaned. “Unless you have a better idea, that is.”

“I’m sure there’s tons!”

“Really?” Adagio huffed. “Name one that’s better. At least this way… from a distance, nobody with question us being at school still. They’ll just think we’re still here for cheer practice.”

“You—” Words caught in Aria’s throat. It was hard to complain against that logic. It was… pretty weak logic, but that was still better than anything Aria was going to come up with anytime soon. If it even made one janitor shrug and look the other way, then would it be worth it?

“So hurry up” Adagio tossed a second outfit at her. “We should have plenty of time to be there and back before those airheads finish their shower.”

“Fine!” Aria wasn’t happy about it, but, “fine!”

She turned her back to Adagio as the girl began to strip down. Aria had to take off her clothes too, but wasn’t looking forward to it. First her skirt, then her shirt. Soon she was in nothing but her bra and plastic pants, the diaper underneath sticking out like a wet, sore thumb. It made her cringe with every movement, pressing it’s soft dampness against her whichever way it liked. No matter how much she tried to ignore it, it made every second suffering.

Finally, Aria tugged the sweaty cheerleader uniform over her head. It was tight, maybe a size too small. Fabric squeezed her chest and gripped her stomach, the skirt daintily swishing as it came down.

She hated it.

Turning back around, Aria caught a glimpse of Adagio’s stomach as she pulled down her own disguise. The skit flopped down over her diaper… over half her diaper.

Aria’s eyes widened, and she looked down. The purple plastic of her pants was plainly visible beneath the skirt. The stupid thing did absolutely nothing to hide her diaper!

“That’s it!” she squeaked. “I’m not doing this!”

Adagio was blushing as she realized the massive hole in her plan. Even the panties she wore over her own padding did nothing to counteract the way it bulged out from underneath the skirt. She yanked it down, but the seat of her padding was just too cumbersome to overcome. Looking up, Adagio saw Aria already taking the uniform off.

“Oh no you don’t!” she snapped, slapping the fabric back down. “We’re doing this now, while we still have a chance.”

“I’m not walking around with this… thing exposed!” Aria cried.

“Then… here!” Adagio dropped to the floor again and came up with something new. Pom-poms.

Another discarded piece of cheerleader crap. Aria was about to snark, but Adagio was already demonstrating her plan. One held in front, the other behind. The loose, stringy material actually managed to hide her massive diaper butt.

Aria wasn’t happy about it. The prospect of scampering around school dressed like cheerleaders already wasn’t appealing to her, but now they’d have to cover themselves the entire time? Adagio had surely lost it.

“No wa—” A glowering look from Adagio cut her off.

The Siren leaned in, her few extra inches over Aria effectively letter her tower over the girl. “I’m still the boss,” she growled. “So do as I say.”

Aria’s face slipped into a scowl. Of course Adagio still felt that way. Their truce today really meant so little to her? Was it really just a way of keeping Aria in line so she didn’t challenge the “one true leader” anymore?

“Grrr…” There was a lot Aria wanted to say and do right now. Insults, slap fights, hair pulling, swears… all of it tempting. But then her soaked padding squished again, and she was reminded of their situation. Now wasn’t the time. The key, her change, came first. “Okay.”

Aria snatched up her own pair of pom-poms and practiced covering her dignity to appease Adagio. It worked.

They through their clothes in their gym lockers for safe keeping, and finally began moving into the school proper. The detention room was all the way on the other side of campus. They’d have a lot of covering to do and a lot more waddling to put up with before they were home free.

“Ready?” Adagio asked as they came to the hallway to the gym.

“You’re the worst,” Aria grumbled.

“Yeah?” Adagio hiked up her padding, pom-poms in place. “Well so are you.”

Author's Note

Well well well, how's this one going to play out? You won't have to wait too long to see it, at least.

Thanks for being patient with me for this one, guys.