It wasn't always easy to watch over the dreams of an entire nation. Luna was never really sure just what kind of night she was going to have. Some nights were peaceful, where everypony's dreams were sound and pleasant. Sometimes somepony was dealing with nightmares, and it was up to her to either coach the pony through their insecurities or just blast whatever was causing the nightmare.

Some nights were just plain weird though.

Luna was no stranger to senseless dreams. The dreamscape was vast and beautiful, and the fact that anypony could make anything they wanted happen was something that Luna treasured dearly. There were some, though, that just baffled her to no end, and it had left her curious. So tonight was a special night. Tonight was a night to research, to try to understand some of her subjects' deepest hidden desires.

Of course, that required that she actually find those kinds of dreams. There were a lot of ponies she kept watch over, and the realm of dreams didn't materialize itself to her desires. It was large, directionless and, above all else, disorganized.
The only tell Luna had of where to go was if somepony was having a nightmare; otherwise, she was left blind. She figured the best course of action was to just pick a door at random and see what happens. She was bound to find something interesting, right?

She could feel the world laughing at her as she hopped from dream to dream, watching the most conventional of fantasies playing out before her. Figures that the one night she wanted to find the stranger dreams was the one where they wouldn't show up. Nothing so far but gateway after gateway to money, fame, personal aspirations, and sex. Quite a lot of sex.

The sex dreams were the ones that disappointed Luna the most. After having seen so many dreams of just vanilla sexual activities, the princess of the night had become dulled to its excitement, and it was only the more fetish-fueled scenarios that could get her excited anymore. it sucked even more because those were few and far between, and hardly something she could pursue so easily in the waking world. Did that mean that she was looking for these off-the-wall dreams tonight purely for her own pleasure?

No, but that was part of it.

She fluttered over to the next dreamgate, hoping that this time she gets what she's been looking for. She creaks the door open, finding herself within the living room of a small apartment. Not much in the way of personable decorations, but the home was quite comfy and the furniture did have a pleasant aesthetic. Judging from the simplicity, Luna deduced that this was one of Manehattan's downtown apartments. She wandered through the rooms, hoping to find the currently absent dreamer.

She overheard some soft moaning coming from down the hallway. Here we go again, she thought as she approached the sound. Strange that it was coming from the bathroom, she didn't hear any shower running or water splashing. Not to mention she only heard one voice... seems she did find an unusual dream. She phased through the bathroom door, her form taking on a more translucent appearance so as not to reveal her presence.

On the other side was Babs Seed, a mare Luna only knew from helping the CMC through their nightmares. What wasn't quite as familiar to her was the young mare half naked with only a diaper wrapped around her lower half, her hand stuffed underneath to rub and finger her pussy. Definitely not what Luna was expecting when she set out tonight, but it worked nonetheless.

With a burst of her magic, Luna imposed her own fluid consciousness onto Babs, allowing her to feel everything the young mare believed she was feeling and understand the thoughts going through her head. Apparently Babs had heard about this from the CMC themselves, and while she was unable to indulge herself in real life, this idea had been stuck in her dreams ever since.

Babs wasn't making her thoughts easy to comprehend, though. Most of it was drowned in the intense desperation she (and Luna by proxy) were feeling. Babs started fingering herself even harder, ready to bring herself to the point that she couldn't hold out any longer. With one final push if her fingers she finally let go, a torrent of piss erupting into her diaper and soaking every last inch of its soft padding. The sheer relief and warmth enveloping Babs's pussy even managed to get to Luna; she could feel some of that true excitement that regular sex just didn't give her. But was this really okay for her to get turned on by?

That question could wait, as Babs's stream wasn't stopping anytime soon. It began forming a large puddle in the diaper, eventually flooding the interior as though the leg holes were completely plugged. With nowhere else to go, the diaper continued to expand, spreading Babs's legs wide open. Her hand swam through the pool of piss, still rubbing outside of her swollen, soaked pussy lips. Her other hand drifted to the front of the diaper, pressing into the stressed material and feeling just how much it had tightened from the volume of pee she was bathing in.

Luna decided now was as good a time as any to move on; best do so before she lost her own concentration. She pulled herself away from Babs and exited her dreamscape, wondering just what she was going to come across next. she decided to give herself a few moments before jumping into the next dream, as she could still feel the phantom sensation of having her entire crotch wrapped in warm piss. Not an unpleasant feeling, but it made it difficult for her to focus.

Once she was able to collect herself, she moved on to a new section of the dream realm, watching as the doors shifted and shuffled across its starry backdrop. A simple wooden door drifted into her path, opening itself for her as she slipped into the new dreamscape. This wasn't uncommon, but it usually brought her somewhere that connected to the previous dream. Was this another...

Her question was answered as she landed onto a short dirt path, one that led to a cottage she knew all to well: this was Fluttershy's home. She could hear the demure pony humming and speaking to the animals in her backyard as she gave each of them a short bath. Seemed like a pleasant enough dream on the outset; perhaps there was nothing more to see. That's what Luna thought until she watched Fluttershy retreat back into her cottage, muttering something about 'needing to clean herself up soon'. Luna tailed her, finding her slowly wandering through the rooms, stopping for brief moments before taking a few more steps.

Luna shifted herself to Fluttershy as she did with Babs before and was hit with just as great of a wave of desperation from the shy pegasus, though this was a different kind. Fluttershy was clearly doing all that she could to hold it in, but unlike Babs it wasn't because she liked holding it for so long. Luna could feel she was also wearing a diaper, so what was she waiting for?

Luna got her answer when an unknown pair of arms wrapped around Fluttershy's waist and a soft voice came into her perception. "Shhh, it's okay Fluttershy, Mommy's here. You can let it all out now."

Fluttershy's skirt vanished into the dreamy aether as she followed her mother's words and let go of all the piss she was holding in. Unlike Babs, her diaper behaved more realistically as the padding quickly absorbed all it could and the rest spilled down the leg holes and puddled beneath her. Luna could feel her own excitement returning, now fueled by the warmth spreading down her thighs and to her feet. If it was wrong for her to be turned on by this, Luna didn't want to be right.

Things took another turn from Babs's dream as pissing wasn't the only thing Fluttershy needed to do. Soon after the flow of urine had stemmed, Fluttershy leaned forward towards her couch and laid her hands upon the couch's arm. Her mother followed her from behind as Fluttershy began pushing the massive turd in her ass out, the log pushing the back of her diaper out until it collided with her mother's body. Unable to expand any further, Flutterhy's shit coiled back around inside her diaper, pressing into her ass and worming its way between her legs.

"Mmm, my poor baby's making such a mess," her mother teased as she pressed herself even harder against Fluttershy's body. This coaxed Fluttershy to push even harder to fill her diaper as much as possible. Her diaper extended past her knees as the last piece of poop popped from her anus, the sheer weight exciting both her and Luna even more.
"Good girl, Fluttershy. How's about we go get you cleaned up?"

Luna mindlessly pulled herself away from Fluttershy, frustrated that she had finally been brought so close to climax; she just needed a little more! She tore back to the dream realm's hub, desperately hoping that the next dream would be enough to get her over the edge. She sped through so quickly that she didn't even pay attention to the door that she drifted into next.

She landed in the familiar surroundings of the Canterlot castle. A little strange to her, since the castle's denizens were the easiest dreams for her to reach and she had yet to see any of them have any kind of diaper fantasy. She reasoned that one of them might have just gotten into it and she hadn't noticed yet.

She overheard a soft moan from somewhere in the castle, and swiftly followed it to its source. The halls she floated through became more and more familiar as she went, and she soon realized that she was headed straight for her and her sister's quarters. Was somepony having their fantasy in the princess's room? It wouldn't be the first time, but again, Luna hadn't seen a diaper fantasy like that. When she finally arrived at Celestia's room, she found out why.

She was in her own sister's dream.

Celestia lay upon her bed, clothed in nothing but a custom-sized diaper as she lazily rubbed her palm against its surface. The two sisters had a promise to each other that Luna would not visit her dreams outside of absolute emergencies, and now she knew why. Her sister had quite a kinky fantasy; little did Luna know it was only getting started.

Another voice piped up from the hallway. "You wanted to see me, Princess Celestia?" a pre-alicorn Twilight asked from the doorway, her feet shuffling against the floor.

"Yes, Twillight, come in. I assume you have done what I asked of you?"

"Of course, Princess," she answered, dropping her skirt and revealing that she was wearing a diaper just like Celestia.

"Good. Now come here, you know what to do."

Twilight nodded as she stepped forward, an aura of magic surrounding her hand as she slipped it down the front of Celestia's diaper. With Twilight's hand firmly against her pussy, Celestia let loose her torrent of piss, coaxing a cacophony of moans from both her and the young unicorn.

Luna was more inclined to be in Twilight's position in order to keep some sense of boundary between herself and her sister, but because Twilight was nothing more than a figment of Celestia's dream, she couldn't understand anything of what she would be feeling. Thus, she steeled her resolve and planted herself within Celestia and was immediately hit by a cavalcade of excitement. It would seem that whatever Twilight did to her hand not only kept it clean while still allowing her to feel everything, but amplified Celestia's own pissing pleasure, something that drove Luna wild.

When the last of Celestia's pee trickled away, she brought her attention back to her pupil. "Good job, Twilight, that spell worked wonders! Do you want to try the other side now?"

Another nod from the unicorn as her hand slipped away from Celestia's pussy and started rubbing between her ass cheeks. Celestia couldn't be serious, this was so depraved! Despite this, Celestia didn't hesitate as she began to shit over Twilight's hand, both of their moans increasing in volume as it filled more and more of the sun princess's diaper. Twilight used the opportunity to smear the shit right up against Celestia's ass, rubbing it everywhere she could reach.

Celestia decided it was time for Twilight to join in on her fun. "Okay Twilight, show me how much you've held in since we last spoke," she demanded as Twilight leaned into her bosom and let loose her own massive amount of excrement. Her diaper quickly ballooned to the floor as Twilight continued to shit herself, soon finding herself sitting atop the pile of shit that left her body.

Apparently Celestia absolutely loved watching her student do this, as it was enough to bring her to a roaring climax. Her juices sprayed across the diaper's padding, spreading enough to soak the furs just outside of her lips. With her own orgasm fading, Celestia pulled Twilight's hands away and leaned towards her faithful student. "I bet you'd like to cum too, wouldn't you?" Twilight's only response was a whimpering nod. "Don't worry, I know just what to do."

Luna felt Celestia's diaper magically vacate and watched as Twilight's puffed up just that little bit more. Neither of then had to say anything for Luna to understand what just happened, and it turned Twilight on even more as she shoved both of her magically coated hands down into the diaper. Luna was pretty sure she wasn't even fingering herself, just getting off on feeling the massive pile of shit in her diaper, knowing that some of it wasn't even hers.

Despite not even being tied to Twilight's emotions, Luna could feel her own orgasm swiftly approaching. She just needed Celestia to shit herself again, something she could easily influence. With one stroke of her own magic she tweaked the dream and gave Celestia another massive shit to send into her diaper. Celestia gave a loud moan from the speed at which it vacated her body, and Twilight watched as her princess shit herself in front of her again.

All three ponies screamed in ecstasy as their orgasms racked their bodies. Unfortunately for Luna, both hers and Celestia's were intense enough to rock the both of them awake...

Luna woke to find that those dreams had gotten to her more than she realized. Her panties were soaked in piss, covered in shit and leaking all over her bed. She'll have to wash everything in the morning, but for now she was extremely horny and she wasn't letting this opportunity go to waste. Pun intended.

Author's Note

This was a really fun chapter to write. Given the whole dream premise, I could go a little crazier with the fantasies (not that the rest of the chapters were that realistic anyway). I also decided to give Celestia a chance to a bit of a top in this since she definitely won't be in TFP, at least with Twilight.

Next on the block is Coco/Rarity and Diamond/Silver. Hope you look forward to it!