Katsuki's Punishment (private with aizawathebaby)
 

Katsuki was being his usual nuisance self, growling and spitting like a feral animal. Ignoring every bit of advice anyone gave him, and threatening them instead. If they asked him to calm down, it'd only get worse. At this point nobody even remembered what he was mad about.

Shouto was tired of his classmate being an angry little brat. He decided that he would punish him, and called the other boy back to the classroom after class was over. When Bakugou arrived, Shouto folded his arms, "Bend over my knee, before I bent you over it myself. Got it?"

Katsuki walked into the classroom, sighing as he shut the door behind him. His expression quickly changed from annoyed to confused as he saw Shoto standing there with a more serious look on his face. What the bi-colored male said confused the blonde even more, causing him to let out a laugh. "What makes you think you're so special? What are you- my dad?"

Shouto didn’t seem to think it was funny. He tossed the blond over his knee after taking a seat, rolled down the baggy pants of his school uniform, and began to spank his bare backside without any mercy. He said nothing for a while, choosing instead to hold the other in place with one arm on his back and the other spanking his bottom until it was bright red. “I told you to bend over my knee. If you disobey me again, I’ll spank you much harder.”

In the beginning katsuki tried to fight back, kicking his feet and trying to struggle free of shotos grip. Though nearly halfway through the spanking the prideful blonde began to cry, mostly from pain. "O-okay-" he spoke softly, tripping over his own words. This entire scenario reminded him all too much of his mother's punishments, all usually for the littlest things, causing the blonde to wipe his eyes and sniffle a bit.

Shouto smiled. Already, the boy was sobbing like a little baby. “Good boy. See, was that so hard?” He cooed condescendingly, letting the crying blond up from his lap but not putting his pants back on. Instead, he chucked those and his underwear into the garbage before taking Bakugou over to his desk. “Now lie down up here after I get this ready. I’m going to get you dressed, and you’re not going to complain about it.” He didn’t even reveal what exactly Bakugou would be wearing yet, only grabbing a bag from the corner of the classroom. Out from this bag, he pulled out a massive diaper in the other boy's size, and unfolded it on the table where he'd be sitting. "There. You can hop up now, Bakugou."

Katsuki flinched as shot threw his things in the trash, standing there while desperately trying to cover his lower half. "B-but wait- no!" The blonde took a carious step back, shaking his head for emphasis. "I'm not letting you do.. well whatever you're going to do! At least not without my pants..." The boy added at the end with a slight mumble, pouting the slightest bit. "I-i don't know what's going on b-but I don't like it! I'm not letting you do anything to ruin my reputation!"

Shouto chuckled to himself. “You sound pretty damn cute right about now, Bakugou. Is someone nervous? Hm?” He teased, seeing how shy the other boy was acting about all this, standing there covering himself with a red face; how adorable. Shouto guided him to the desk, and practically forced the naked boy up on top of the diaper he’d unfolded on it. “Now don’t cover yourself; I know you’re all embarrassed, but you’ll be all dressed in something..better soon, okay, baby Bakugou?”

"B-baby!?" He repeated, shocked at the males choice of words. "I'm not a damn baby icy-hot! Now give me back my pants before I make you!" The blonde was given a sudden rush of confidence, beginning to sit up as he growled a bit. "My reputation that I've worked so damn hard to build would be ruined! I'm not letting that happen!" He began to attempt to leave the desk.

Shouto was unsurprised by the fiery boy’s spunk and his attempt to pester him into returning his undergarments and pants. Without a word, he used his quirk, freezing his wrists to the desk he’d placed him onto so he couldn’t move his hands. That way, Bakugou couldn’t attack him or get up off the desk. He used the other half to burn Bakugou’s pants and underwear right before his eyes, and then walked back over to the table. “For someone who claims not to be a baby, you’re certainly behaving like one. You’re whining and yelling because I haven’t given you what you want, and now you’re making up lies about your reputation. Everyone already thinks you’re an impulsive brat.” He replied, grabbing up baby powder and powdering his backside before swiftly taping up the diaper around Bakugou’s waist.