The ponies in the bakery were enjoying themselves, having cake, muffins and various other treats, when the sound of hooves coming down the stairs got the attention of the ones closest to them, and the sight got them quickly whispering and getting the other tables to look over.

Princess Twilight has come down, her hatchling in tow, seemingly bashful about how many ponies were looking at him.

Spike had completely frozen at the base of the stairs. Every pony in the bakery had their eyes locked onto him, as he stood there wearing a baby blue sailor outfit, it doing next to nothing to hide his new diaper. (As well as the mittens, booties and bonnet, which just made it more obvious.)

As Pinkie went to a table near the playpen, the patrons eating already in the process of leaving, Twilight brought the “hatchling” toward the pen, using her magic to gently nudge the dragon to it, bringing him in between several tables.

Spike was blushing furiously as he was walked through the bakery, hearing comments from all sides. From simply cooing, to calling him the cutest thing they’ve seen, to even petting him on the head as he passed by.

But that was nothing compared to what he’d face shortly.

Twilight opened the gate, getting the attention of the twins, as they looked and saw Spike waddling in with a whimper.

Unlike everypony else, the twins saw what was going on. They saw Spike as a teenager, wearing a sailor suit and the biggest diaper either of them had ever seen, and face as red as Pinkie’s was when she tried hot food in front of them.

Spike sat next to the Cake twins, utterly humiliated by this point.

How could this get any worse... the dragon thought to himself.

He suddenly heard laughing, and he turned to see the twins giggling and pointing at him.

Spike’s heart dropped as he realized that the only ones that knew he was a teenager and that he didn’t need to be in diapers...were the actual foals.

Spike looked downwards in shame, as Twilight closed the gate and went to sit next to Pinkie, sitting so she was facing the playpen, keeping an eye on the “baby” dragon.

A few moments passed, and Spike felt something touching his leg. He looked over to see Pumpkin Cake, holding out a ball giving him a smile.

Wordlessly, Spike took the ball from her, and watched the goal crawl back, sitting across from her brother, making a triangle shape between them, before waving her hoof toward the dragon.

Realizing what she wanted him to do, and wanting to focus on something other than the eyes around him, Spike moved his body so he was facing the two of them, and put the ball between his legs, which were now in a V shape, and gently rolled the ball over to Pumpkin, who caught it, smiled, and passed it to her brother, who then passed it back to Spike, who passed it back to Pumpkin, and so on.

As the crowd of ponies watched the adorable sight, Spike actually found himself enjoying it.

After a few minutes, Pumpkin put the ball away, before levitating toys into the center of the trio.

Pound quickly dug into the pile and got his favorite toy, an action figure of the Power Pony Fili-Second, hugging it closely.

Pumpkin got a plush Pinkie had made for her, and Spike found figures of Hum Drum and the Mane-iac, trying to picture what happened back when he was sucked into the comic as a distraction from his predicament.

After a few minutes, Spike decided to listen in on Twilight and Pinkie’s conversation.

“I’m so happy that Spikey is having fun with the twins, Twilight!”

“Yeah, it’s nice to see the twins playing nicely with somepony much younger than them”

...YOUNGER?!?

Spike couldn’t believe what he was hearing, they though he was younger then the actual foals?!

Spike closed his eyes, letting out heavy breaths from his anger, finally having had enough of what was going on. But before he could say anything...

*SNAP*

Spike’s eyes shot open, and he looked down.

He had accidentally broken both of the toys, and he could see that the Twins noticed this. And to his horror, they were starting to tear up.

He dropped the broken figures and began to beg.

“No no no, please don’t cry, I’m sorry, I’m so-“

The Cake twins burst into tears, catching the attention of the rest of the bakery.

“SPIKE!” Twilight marched her way over to the pen, while Pinkie sped over to the twins, trying to calm them down.

“What did you-“ she stopped as she saw the broken toys, and from her point of view, the hatchling had started to giggle.

She gave the dragon the sternest look possible. “Did you break the twins toys after they were so nice to you, Spike?”

Spike found he couldn’t say anything, as whenever Twilight was mad at him, it usually didn’t end well, and as he figured she wouldn’t do anything if she thought he was a hatchling, he slowly nodded.

Oh, how wrong he was.

Spike found himself levitated out of the playpen, as Twilight dug something else out of the bag from earlier while she pulled up a chair.

“I’m sorry I have to do this, sweetie. But I don’t want you to be a bad dragon when you get older.”

To Spike’s absolute horror, Twilight took a paddle out of the bag.

“T-Twilight, wait! I’m sorry, okay?! I didn’t mean to break them! Please don’t spank me!” Spike pleaded desperately with the mare, who sighed.

“Spike, I don’t want to spank you, but I want you to learn not to do something like this again.”

She sat down on the chair, and Spike found himself going over her lap, his rear facing everypony in the bakery.

Using her magic, Twilight undid the onesie’s flap, and pulled Spike’s diaper down, exposing his purple scaly butt to the crowd. One of them spoke up.

“Princess Twilight, do you really need to use a paddle on the little guy?” Twilight looked at the pony, and explained.

“I spanked Spike with my hoof a week ago when he burned one of Rarity’s dresses, and he didn’t feel a thing because of his scales. This is the only way to properly discipline him like this.”

While this was going on, Spike was thrashing in place, trying his hardest to escape from her lap, but her magic kept him there.

A purple glow enveloped the handle of the paddle, as well as his legs, while her hooves lifted his tail, keeping it out of the way.

Spike stopped as he saw the faint reflection in the mirror, and letting out a whimper, he shut his eyes and braced himself for the first spanking he got since he was an actual hatchling.

The paddle swung down.

SMACK

The teenage dragon let out a yelp, as his cheeks bounced from the wood making impact.

Unbeknownst to anypony, the magic also made that specific part of his body more sensitive to pain, so it actually felt worse than what he got when he was young. It was also compelling her to continue until he said a certain phrase.

The spanking continued for a few minutes, his rear slowly turning from purple into a shade of red.

Spike, with everything that happened that day, from barging in on Discord, to being put in baby clothes and a diaper, to being brought into public wearing those, and finally getting spanked in front of a crowd, with nothing hiding his butt from them, the pain and humiliation finally got to the dragon.

On the fifteenth spank, the teenager began to cry, his cheeks now matching his face, both completely red.

It was the twenty fifth spank that got Spike to scream out at the top of his lungs.

“I’M SO SORRY, PLEASE STOP, MOMMY! “

Twilight stopped after five more, putting away the paddle and pulling back up Spike’s diaper, before embracing the crying dragon.

“I’m so sorry I had to do that sweetie. Let’s go home, so you can take a nap."

She pulled a giant pacifier out of the bag, plopping it into the teenager’s mouth, at which he instinctively began to suckle away, no longer caring at the moment that other ponies were watching him.

Her horn glowed, and the door opened, a baby buggy rolling in, just big enough to fit the dragon.

She levitated the crying dragon into it, laying him on his stomach, Spike cuddled into the pillow, still sucking on his pacifier, and pulled a blanket over him, leaving his head exposed.

Waving goodbye to everypony in the bakery, and apologizing to the Cakes for what happened with the twins, who have been calmed down as Pinkie was still hard at work to keep them happy, Twilight rolled the buggy out the door, and began the walk back to the castle, her baby still sniffling as he continued to suckle on the pacifier.

Author's Note

If you all couldn’t tell, this was the first time I wrote something involving spanking in ANYTHING, so if it went a bit too far, or if anyone has suggestions to make the second half a bit better, let me know.