“This is payback for our banishment!” A defiant Princess Luna shouted as she let herself be swept up by the rapidly spinning, draining waters of the toilet! It kind of felt like being on a water slide with how fast she was moving, especially once the water pulled her down the drain at the bottom of the toilet and swept her into the pipes!
The downward journey soon turned out to be anything but fun for the regressed princess of the night, though. The pipes were clearly not meant for a foal, they were dark and enclosed, and the cold feeling of lead made Luna uncomfortable. She couldn’t see where she was going, until suddenly a light appeared ahead! Without warning she tumbled forward into it, barely thinking to light up her horn in time to cast herself in a protective bubble. Said bubble shielded her from landing face first in murky water.
But it still burst upon impact, Luna landed rump first with a splash. She had to plug her nose when a foul stench reached her nostrils. “This smells worse than when we had our accident this morning,” She gagged. “Is this the sewers that our sister was talking about?”
Well, it didn’t seem like there was anything around to tell for sure. But for little Luna the stench was awful! It smelt like the royal chamber pots of old when they were full and needed to be emptied out. Was this where ponies bodily wastes ended up these days? In a damp, dark, disgusting place such as this? The regressed princess couldn’t help but think to herself as she slowly waddled along. “Tis worse than being imprisoned on the moon for a thousand years. Why did we think this was good? Our sister shalt no doubt force us to be bathed, assuming we ever find our way out of this place.”
So the foal trotted along, her little legs submerged in the murky waters of the sewer in all its dimly let, unholy glory. She didn’t really know where she was or where she was going, she was just looking for any kind of light that might signal a way out. In the meantime, as she trotted along, Luna couldn’t help but think back. Back to her time on the moon when Nightmare Moon had been in control, and Luna herself had laid dormant, a prisoner in her own body.
Nightmare Moon landed face first in one of the craters of the moon as the rainbow beam that had carried her all the way there faded. She immediately stood up and growled, dusting herself off as she took in her surroundings. “That cursed Celestia! There’s no way she should’ve been able to weild those Elements of Harmony without her sister!” She growled. “Well, I’ll teach her a lesson she’ll never forget! I’ll make her rue the day she ever heard the name: Nightmare Moon!”
But then suddenly the mare of darkness felt a warm sensation beneath her. She looked down and nearly gasped in horror at the huge puddle forming under her hind legs! “Gah! What is the meaning of this?!” She shrieked in horror.
From inside, a frail and weak voice squeaked out. “S-sorry, we did not mean to. But we were frightened and forgot to visit the royal lavatory earlier.”
Nightmare Moon groaned. “Great!” She sarcastically declared. “Little Luna is a bed wetter. How unfortunate, had I known I would’ve never taken control of you. What kind of foal can’t control their own bladder?”
“We are not a bed wetter! We have not wet the bed since we were five!” The voice from inside squeaked out.
Nightmare Moon just sighed and hissed. “Well there is a slight problem, Little Luna. There are no chamber pots or other devices anywhere on the moon. And neither is there a lavatory of any sort. So it seems we will need to… unfortunately… improvise.”
But just then, something thudded down from the sky and hit the mare of darkness on the tip of her horn. She bent down to examine it, discovering it to be some kind of brightly decorated vase that had little moons and stars printed all over it. Attached to it was some kind of paper, along with a note and a bow.
Nightmare Moon lit up her horn, carefully examining the attached note. It read:
To my dear little sister,
I know a part of you is still inside that wicked Nightmare Moon, which is why I have banished you to the moon for a thousand years. I will not rest until I find ponies who can wield the Elements of Harmony and free you from the dark forces that have taken control of you in body, mind, and spirit.
In the meantime, I thought I’d take the liberty of providing you with a few ‘essentials’. Among them is your old chamber pot, carefully preserved, and some material with which to clean yourself up after you’re done. I shall provide other ‘essentials’ on an as needed basis.[
I pray that these thousand years pass swiftly, so that we may be re-united!
Sincerely,
Your loving big sister, Celestia
Nightmare Moon let out a cackle. “Oh, isn’t that just preacious? Even after you sided with me and tried to bring about eternal night, your sister still cares about you. How sickeningly sweet,” Then she picked up the chamber pot and the paper. “Still, I shall be most grateful to her for this gift. It shall surely beat depending on craters for our business.”
“Then may we try it out?” The voice of Luna inquired from within. “Our dinner shalt have been digested by now and ready to come out.”
“You’d better not try any tricks, little Luna,” Nightmare Moon warned as she set the chamber pot down and carefully climbed onto it. It seeemed like it could barely hold her weight. “Or else I’ll leave you stranded here and take over a host that is properly pot trained.” The mare subsequently relaxed as her body relieved itself almost involuntarily.
After wiping, Nightmare Moon got off the chamber pot and briefly wondered how she was going to empty it out. But then she saw it disappear in a flash and a smirk formed on her face. “I see. That goody two horseshoes princess is taking care of it. How kind of her to do the dirty deeds herself. Perhaps these thousand years of banishment won’t be all bad.”
Just then, something else teleported into Nightmare Moon’s vision. It looked like some kind of package which was brightly colored and had cartoon images printed on it. The label read: Silly Filly Nighttime Diapers: For Keeping Thy Bed Sheets Dry. The mare of darkness ripped open the package and took into her hooves a strange, crinkly, almost triangle shaped object. It felt soft to the touch.
The voice of Luna fondly exclaimed! “Huzzah! Mine sister has come through again! With these I shalt not fear my bouts of nightly incontinence!”
Nightmare Moon growled. “I thought you said you hadn’t wet the bed since you were five, Luna. Have you been neglecting your pot training?”
The voice of Luna gulped. “W-well, tis half true. I still do not always make it to mine chamber pot at night, so I wear what is called ‘protection’. Tis better than leaving a stain on the sheets and having to wash them. The whole kingdom wouldst surely mock us if they knew.”
Nightmare Moon simply sighed as she reluctantly took hold of the diaper. “Well, we’ll have to try and work on that. After all, we’re going to be staying up all night long quite often. If we indeed only have a thousand years to spend, we must make sure we’re prepared for when the banishment ends and we must face our beloved subjects again. They’ll never take a pony seriously who piddles herself and has to wear undergarments meant for foals.”
The voice of Luna couldn’t help but snicker. “I think the little ones wouldst greatly benefit from knowing that even a princess sometimes needs diapers.”
But the mare of darkness only growled and warned. “Luna, if you keep that up not only will I not teach you how to hold it, but I’ll start intentionally having accidents and then relinquish control to you when it is time to clean up. After all, your sister also procured changing supplies just in case.”
The voice of Luna gulped again. “No, please, do not take away my pot training! We shalst not make thou again, we wilst cooperate with thou if thou agrees to help us gain the self control needed.”
Nightmare Moon smiled, even as she used her magic to unfold the diaper and clumsily put it on over her rump. “Very well then, Luna. But just be safe, these diapers are staying on until further notice. Now then,” She dug a hoof into one of the craters, carving out some kind of rectangle. “This shall be your potty chart, little Lulu. For each night that you successfully make it to your pot, I shall give you a star. Like this,” She made a star in the first square of the rectangle. “But for every night that you fail, I shall give you a frowny face. Get too many frowny faces and there will be consequences. Do I make myself clear?”
Weakly, the voice of Luna whimpered. “Y-yes, thou is quite thorough in thy explanation.”
The mare of darkness flashed a rather toothy smile. “Excellent. Glad we could come to an understanding. I have the feeling this will be the start of a fantastic partnership.”
The flashback ended suddenly as Luna’s eyes caught sight of what appeared to be light streaming down from above. And a frantic voice was calling out! “Luna! Luna, are you there?! Please, yell if you can hear me!”
Luna blinked. “Sister, is that thy voice we hear?” She called. A moment later, she found herself being swept up in the glow of her sister’s magic and pulled free of the sewers!
Celestia all but hugged her sister right then and there! “Oh Luna, thank goodness! When you got flushed down the drain I had feared the worst! Please dont ever scare me like that again!”
Luna just apologized. “We arst sorry, sister. We thought it would be funny. But having had time to think we realize that we were wrong. Thou still looked out for us even while we werest imprisoned on the moon, though it was Nightmare Moon who taught us how to avoid accidents like the one we suffered last night.”
The sun princess just smiled and warmly (and motherly) reassured her sister. “It’s okay, Luna. You’re not used to being in your little body again. That’s probably why you wet the bed. In time, with proper training, you’ll outgrow it.”
“Does thou mean it, sister?” Luna hopefully inquired, not wanting to endure the shame of wet sheets and the possibility of others finding out.
Celestia nodded happily, before she plugged her nose at the foul stench coming from her sister. It smelt worse than a dirty diaper. “Well, you need a bath, you stink!” She declared while fanning her nose with a hoof. “And to avoid any further ‘accidents’ like this I’ll be moving your training potty to your bedroom. You will only be allowed access to the bathroom with a trained servant or myself. And if I have to, I’ll lock up the toilet so you can’t flush yourself down it again. Do I make myself clear, sister?!”
The younger alicorn gulped and shuddered. “Yes, sister! Thou was most clear, we shan’t again attempt this ‘flush’. And clearly we shan’t have need of the toilet until we arst back to normal.”
Celestia promptly surrounded her sister in a magic bubble, not wanting to even think about what Luna might have come into contact with. “Good. Now let’s get you back to the castle and cleaned up before anypony spots us.”