Rainbow's Curse

“Just be quiet and don’t bother Trixie if you don’t want another spanking,” Trixie warned, not bothering to look at Rainbow Dash as she spoke.

Rainbow Dash crossed her forelegs and grumbled, sitting cross-legged in the corner of the room as she watched Trixie work. The showpony had changed into her stage costume for whatever reason, and her cape swirled and waved back and forth as she moved from one end of her workbench to the other. Mixing bits and things into a jar, she shook it up and then placed it over a beaker, letting it bubble until it darkened to a sinister black color.

Worried that it might be some other potion to make her debacle worse, Rainbow’s curiosity got the better of her and she asked, “Wh-wha awe you doin’?”

Glaring over her shoulder for a moment, Trixie turned back to her potion. “Trixie’s magic is incredible, but not limitless,” She said. “I need a pick-me-up for what’s in store. Teleporting idiotic pegasi across the hall is one thing, but I’ve got a little bit of a longer reach in mind this time.” She smirked, before pulling the potion off of the flame and tossing it back, drinking the whole thing in a couple gulps.

The change was only barely visible, but still plainly obvious nonetheless: Trixie shuddered a bit and seemed to grow invisibly stronger, without any apparent physical change. Her eyes flashed green, her horn seemed to spark black for a moment, and then she straightened with a broad smile.

“That’s better,” Trixie announced, smiling broadly to the room. “Now, hold still, this next spell is going to take a little precision and Trixie doesn’t want you ending up in Ponyville square.”

Swallowing, Rainbow Dash sat perfectly still. She didn’t want to end up teleported straight to Ponyville square either, knowing what the consequences of that magic would be.

“Oh, and just so you can’t try and argue once I’m done…” Trixie added, light flickering across her horn for a moment. Rainbow’s pacifier suddenly swelled, making her cheeks puff out a bit with discomfort as the bulge pushed them out.

Totally gagged again, Rainbow wasn’t able to ask any more pesky questions as Trixie narrowed her eyes, horn glowing in preparation. Judging by the glow and the clear sense of effort, this was going to be one whallop of a spell. Trying to sit still, always hard for her, Rainbow managed to keep her movements down to a few fidgets to deal with the numb feeling in her behind. Her diaper was uncomfortably dry, but she didn’t feel much like she had to go. Anyways, if Trixie was really going to hit her with the spell she was getting ready, it wouldn’t be long before Rainbow wouldn’t have to worry about a dry diaper anymore.

Closing her eyes, Rainbow Dash waited for the feeling of motion sickness that came with all her other teleportation spells, and the intense pressure in her bowels that would quickly turn into the grea- gross, ahem, feeling of a mucky diaper. Several seconds went by though, and still nothing. Unable to ask what was taking so long, Rainbow just peeked one eye open to look and see-

They had moved. She just hadn’t felt it. And they were…

On…

A…

Stage.

Rainbow Dash’s pupils shrunk to pinpoints and she fell backwards in a sudden scramble to back away, find some way to get behind a curtain or something, but her back just found a brick wall and no way to get out.

Taking a second to survey the scene, she saw everypony in the small crowd. Mostly, it wasn’t ponies she recognized, no ponyville residents at least. They were in some kind of indoor area, not large enough to be a theater, but without a bar or anypony serving food. A private showroom, probably, and with Trixie grandstanding to the audience. Rainbow was too distracted to listen to Trixie, too horrorstruck to focus properly. Her eyes darted frantically from the door, which was across the room and at the top of a flight of stairs, out of her reach, to the crowd which…

Oh Celestia, is that Spitfire? Spitfire is in the audience!

Sure enough, it looked like Spitfire was in the crowd laughing with everypony else at something Trixie had said. Finally, she looked at Trixie herself, who was gesturing straight at her.

Before she could try and figure out exactly what was happening, though, she felt a sudden cramp deep within her bowels. This came as a surprise, since she hadn’t been feeling any need to go in the slightest a second ago, and even if Trixie’s magic had filled her up, she wasn’t exactly trying to hold it. Wincing, she rocked forward as another cramp racked her, eliciting a groan of discomfort into her pacifier.

Ow ow ow o- Oh, crap...

She realized too late that her instincts were kicking in to try and fix the uncomfortable pressure: Tightening up, her body was pushing to relieve some of the pressure and damn the laughing crowd. Blushing in preparation for how the crowd would react, she waited for the mucky feeling of the seat of her diaper filling with crap. Seconds went by.

Nothing happened.

In spite of her body’s attempt to relieve some of the pressure, moments went by and all she felt was another, even more intense cramp that made her rock forward and clutch her stomach again.

Looking to Trixie in a panic, Rainbow Dash tried to figure out what was going on with little success. She didn’t know what she would say even if her pacifier wasn’t keeping her thoroughly gagged, but nonetheless she looked around and finally to Trixie again with a confused expression on her face, trying to solve the puzzle of what the heck was going on. That’s when she finally started listening to what Trixie was saying.

“Oh, it looks like she’s coming around, everypony!” Trixie called, apparently having noticed Rainbow’s confused looks. “Isn’t she adorable? As promised, I’ll prove without a doubt that I can hypnotize anypony with just a wave of my hoof! You’re all familiar with Rainbow Dash’s history, Trixie presumes?”

A chorus of agreement came up from the crowd as Rainbow Dash started spotting more familiar faces. Not just Spitfire, but several other higher-ups in the Canterlot sports scene, many of whom she’d sent application letters or fan mail too. In fact, the more she looked, the more familiar faces seemed to appear in the crowd.

“Well then, you’d know she’d never just agree to any of this,” Trixie called, grinning as she turned towards Rainbow Dash and waving her forehooves in some kind of strange pattern. “Now, Rainbow Dash, when I snap my hoof you’ll wet your diaper, alright?”

Rainbow shook her head, mortified at the idea of being in a wet diaper in front of everypony here. Admittedly, she was surprised she hadn’t used her diaper already what with the barely tolerable need she was feeling to go, but that didn’t mean she wanted to go in front of this crowd one way or the other.

And yet, she suddenly felt the pressure on her bladder vanish as soon as Trixie snapped a hoof against the ground, and as she looked down between her legs she realized to her horror that, just as Trixie had predicted, there was a growing yellow stain growing on the front of her diaper, plainly visible to the whole crowd underneath the tiny skirt of her outfit.

Relaxing visibly as the numbness in her behind dissipated, Rainbow sighed in relief. The pressure in her gut was still growing painful, but at least her diaper was comfortably wet.

The pieces fell together as Rainbow Dash felt her diaper squish beneath her. The unicorn hadn’t used any sort of magic or hypnosis to make Rainbow wet her diaper, she had been using magic to keep Rainbow from going and had finally cut out the spell when she said she was using hypnosis. That also explained the steadily growing pressure at Rainbow’s backdoor: If magic was keeping her from using her diaper, it’d be having the opposite effect all at the same time.

Squirming uncomfortably, producing a squishy crinkle from her diaper, Rainbow snapped back into reality as she heard the sounds of laughter echoing through the room. Blushing profusely, she tried all at once to cover up her diaper with one hoof while hiding her face with the other, as though that would actually solve anything.

“Isn’t Rainbow Dash simply adorable?” Trixie said loudly to the audience, projecting her voice with the trained but not overwhelming volume of a talented thespian. “But wait until you see Trixie’s next trick! Even grown mares still might have a little wet accident once in a while, maybe if they’ve had too much to drink, or if they haven’t had a chance to go in a while. While it’s unlikely, it’s entirely possible that Trixie’s incredible hypnosis wasn’t what led cute little Rainbow to end up in soggy diapers, right?”

Basking in the murmurs of agreement, Trixie played up to the crowd’s expectations. “Of course, all of you know what only little foals do, right?” This got whoops and cheers of amused agreement, egging on the show. Rainbow Dash whimpered into her pacifier, knowing where this was going and praying that anything would happen, any saving grace to keep her from loading her diapers in front of this crowd, especially knowing what... other effects the messy diaper would bring out in her.

“Still, Trixie will give you a little chance,” Trixie announced, speaking more to the audience than to Rainbow Dash. “When I snap my hoof, you’ll be unable to take your diaper off,” she said. “But, if you manage to take it off anyways, the show’ll be over and I’ll have to come up with something to impress the crowds.” Smirking over her shoulder at Rainbow with an expression that made it totally clear she knew exactly what she was doing, Trixie raised up her hoof and gave it a snap.

“Trixie will give you a moment, and then we’ll move along,” Trixie said, grinning broadly.

Even as desperate as Rainbow was to relieve the pressure that was still growing inside her, making every action a struggle as cramps and discomfort kept her from reacting as quickly as she would like, Rainbow still wasn’t eager to crap herself on a stage for all the higher ups in Equestrian sports to see. Despite knowing that it’d be impossible, Rainbow nonetheless pulled up her skirt and pawed at the plastic panties keeping her diaper snugly in place.

It was a hopeless effort, as was plainly apparent to everypony in the audience. She tugged at the plastic, tried undoing the plastic snaps keeping it tightly in place, attempted stretching and yanking at the panties, but just like every other time she had tried, nothing much happened beyond inciting more laughter from the audience.

After half a minute of Rainbow’s useless attempts, Trixie finally stepped back in, drawing the eye of the audience back to her. “Well then, I think it’s all pretty apparent what’s going to happen next,” she said. “Audience members with a sensitive nose are advised, clothespins are for sale in the back, this next moment might get a little smelly. Rainbow Dash!” Whirling back to the pegasus who was currently cramping and bowed forward in discomfort, Trixie pressed on with her performance. “When I clap my hooves together, you’re going to mess your diapers like a newborn foal with no control. And,” She glanced at the audience, mugging to get the right effect. “You are going to love it.”

Rainbow Dash gulped, glancing between Trixie and the crowd, shaking her head no in a silent plea. She felt like she was going to explode if Trixie didn’t let up on the magic soon, but she’d rather go anywhere else in Equestria than on that stage.

Unfortunately, it didn’t look like she was anywhere else in Equestria, and by all apparent measurements she was on that stage, and Trixie wasn’t about to let up. Raising her hooves to clap them together, Trixie let up on the magic keeping Rainbow’s diaper clean.

Rainbow’s bowels exploded into her diaper, and the crowd exploded with laughter. Leaning forward and having to do very little to facilitate the release of pressure, Rainbow Dash grunted and whimpered as her diaper quickly filled, actually raising her up a bit on the stage as the newfound mass propped her up a bit more than the empty diaper had. And just as Trixie had predicted, it felt great.

In that moment, despite the jeering and laughs coming from the arranged crowd of somewhat recognizable faces, despite the humiliation of the scene, Rainbow’s magically induced lust led her to ignore all that and give into the overwhelming pleasure of a recently filled diaper. Using both hooves to energetically start-

“Now, now,” Trixie said, pulling Rainbow’s hooves away with a bit of telekinesis, preventing her from indulging. “We’re in public, and I don’t have the license for that kind of show.” Winking at the crowd as Rainbow Dash desperately tugged at the magic keeping her hooves away from her diaper, Trixie added, “Didn’t I tell you that she’d love it?”

Hoots and hollers came from the audience, the voices too nonspecific to tell exactly who was cheering and who was laughing, but behind the diaper-fueled lust Rainbow Dash felt a tinge of reality start to color her thoughts again, the remaining bits of her rational mind realizing that she was fighting against magical restraints so that she could (very) publicly jill off into an overly messy diaper. Her cheeks turning a bright red to match bits of her mane, she nonetheless kept tugging against the magical restraints to try and do something to satiate the desires she was feeling.

Laughing in a knowing, parental fashion, Trixie said, “Well, folks, it looks like I should take the little one home before she gives my show an R rating.” The crowd laughed, and Trixie beamed. “Wave goodbye, Rainbow Dash!” She said then, using the magic already holding Rainbow’s hooves in the air to make her wave one foreleg back and forth in a wave before, finally, letting up the illusion and letting her workshop float back into view.

Of course, from Rainbow’s perspective they just reappeared in the workshop just like they’d left it, plus a full diaper and minus most of Dashie’s remaining dignity.

“Now, Trixie needs to get some work done,” Trixie said, as she turned off the camera and slipped the tape into a cream-colored package along with a folder and a few other tapes. “So if you’d just take a nap and let me deal with it, that’d be great.”

Rainbow Dash didn’t know how she was expected to sleep, until Trixie raised a foal mobile into the air, rotating it with a bit of magic. With barely enough time to recognize the curse kicking in and making her drowsy, Rainbow sagged sleepily, yawned once, and then fell asleep.