One day in Ponyville, Spike was on his way to Fluttershy’s cabin. She let him borrow some scale polish the other day, and it did wonders for him.

“I’m gonna have to ask her to let me borrow this again sometime, it feels amazing.” He said.

Passing by the stream in front of her house, he got a good look at himself in the reflection, and briefly stopped to look at himself.

Spike had grown quite a bit over the years. He wasn’t the little dragon he was before, having hit another growth spurt (Thankfully, no fiasco with him going on a rampage again) and was now pretty tall, only a head shorter than Garble.

Due to him having certain “features” more visible than most, Spike wore a full set of clothes full time now. He was currently wearing a red short sleeve shirt, an unzipped grey hoodie, and some black cotton sweatpants. Not because it was hot, he just thought that they were comfortable.

Smiling, he went up to her front door, and was about to knock, when he noticed it was slightly ajar. Shrugging to himself, Spike pushes open the door, and was about to announce his presence, when the sight in front of him made him freeze, his eyes widening to the size of dinner plates.

In the middle of the living room, sitting in a giant playpen, was Discord. He was sitting with his back to him, happily playing with a teddy bear, so he hadn’t noticed Spike coming in. Around his head, with his horns poking through it was a bonnet. He was some booties that appeared to have been made special for him, snugly fitting around his paw and talon. And judging from the suckling noise, he was sucking on a pacifier.

But the thing Spike’s eyes were instantly drawn to was what was around his waist.

The draconequus was wearing the biggest diaper the teenage dragon had ever seen, a white one with pink adjoining the sides. His tail happily swayed around behind him, the diaper crinkling with the movement.

Now if Spike had had any sense, he would have left as soon as possible, perhaps putting the scale polish on the doorstep. Or even politely announced his presence - from the OTHER side of the door. But what he did actually do - and would regret for a good long while afterwards - was begin to quietly laugh, placing the bottle next to him, accidentally tapping it against the glass bowl, the sound altering Discord that someone was behind him.

The draconequus smiled, and bent down, using his arms to help stand up, and in the process, revealing the bottom of his diaper to Spike. He had a certain butter-coated pegasus’ cutie mark on his rear, three pink butterflies staring right at the dragon as Discord stood up, hugging a teddy bear.

He turned around, his eyes closed, trying to look cute, and to Spike’s further amusement, he was wearing a bib that said Mommy’s Little Prankster.

“Is my baba weady yet, mommy?” the Chaos God asked in the most babyish voice possible.

That was the last straw, Spike burst out laughing, finally alerting the diapered draconequus just who was in front of him.

Discord’s eyes snapped open, and his face went as red as a tomato at the sight of the teenage dragon. Hastily, he moved his teddy bear in front of his diaper, trying to hide it, but only succeeding in appearing more infantile. He spit the pacifier out and, after using a little bit of magic to cut out any noise escaping the room, yelled indignantly.

“S-Spike?! What are you doing here? And how did you get in?!”

Still laughing, Spike managed to say "Er, I was returning Fluttershy's scale polish, and the door was open. I think the question is, what in Equestria are you doing?“

Still blushing, Discord sighed, and his arms found their way to his hips, his teddy dangling in his grip.

“If you simply MUST know, this is a very special private moment me and Fluttershy have every once in a while, and you’re ruining it.”

Spike’s laughter died down, as Discord’s words registered to him. If this was something he and one of his own closest friends did, how would he have felt if somepony barged in and laughed at him? Now looking into his eyes, Spike gulped as he could now practically hear a tea kettle steaming as Discord’s embarrassment turned into anger.

“If you know what’s good for you, you won’t say a single word about this to anypony! ESPECIALLY not to the Princesses! Celly and Lulu would never let me live this down!”

Really, telling anypony about this had not been Spike's first instinct. Leaving as quickly as possible, now... that was seeming like a better and better idea by the second. "Okay...So...I'll just be going now..."

“DO YOU UNDERSTAND?!” Discord yelled at the top of his lungs, stamping his hoof onto the carpet. If Spike didn’t know any better, he would have laughed again at the sight of the God of Chaos practically throwing a temper tantrum.

Swallowing his laughter, Spike stammered out "Uh... y-yeah! Sure! Guy’s Night honor! I won’t tell anypony about seeing you like this, I promise.”

Thinking quickly, Spike said what would ultimately ensure his fate.

“I’ll uh...see you around I guess...Dissy.” Spike smiled at this, a small chuckle escaped him as he called Discord by his (correctly assumed) baby name, thinking it would further assure him that he wouldn’t tell. Unfortunately, this had the opposite effect.

Discord’s eyes widened, then quickly furrowed, glaring at Spike. That tea kettle Spike could hear earlier was now a train whistle, so he decided it was time to leave.

“R-Right, I’ll see you later, then.” Spike slowly backed away from the angry, diapered Chaos God, before turning and opening the door, which had almost shut itself during this whole thing.

As Spike turned to leave, Discord found himself having many, many thoughts rushing through his head about being caught like this. He pictured what Celestia and Luna would say and do to him about this, putting him on display in front of all of Canterlot and Ponyville, the imagined reactions of the rest of Fluttershy’s friends and the make-believe crowd agitated him to no end.
In short, the thought of having others seeing him like this and potentially telling about it was something that he found was actually terrifying to him, so with this mindset, he made a rather rash decision.

Thinking about what he wished to happen, the tip of his tail into a hand, and he snapped it’s fingers, causing a small pink bubble to fly at Spike, popping against his back as he closed the door behind him, not noticing anything in his haste to leave. An invisible wave spread throughout the land as reality shaped itself around what Discord wanted, the memories of everyone in Ponyville and beyond changing to suit what he made happen.

Taking deep breaths, Discord sat back down, picked back up his pacifier, and put it back into his mouth, the soothing rubber helping him to calm down from his anger, and hugged his teddy, trying to forget the thoughts that ran through his head.

A few minutes later, Fluttershy flew into the living room, a bottle of warm milk in hoof.

“Is my little prankster ready for his milk?”

Discord smiled as Fluttershy landed next to him, and lay him down, putting the bottle in his mouth.

As he drank, Discord thought about Spike, and what he was about to go through. He smiled, as he thought to himself.

Well, I’ll be sure to have Fluttershy arrange a playdate with you very soon, Spikey-Wikey.

Author's Note

Well, this is my first chapter of my first story, so if anyone has any suggestions, let me know.

This was actually based off a roleplay I had with a friend, who I will leave anonymous unless told otherwise.

Edit: He said he’d like to be credited. It’s the very pleasant Latecomer. https://www.fimfiction.net/user/340505/Latecomer