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If anyone were to ask, it's Sero's fault.
Izuku just wanted a simple midnight snack. The fridge was packed with all kinds of healthy foods that he should choose but, Izuku just needs his comfort food. Sweets. Looking around the fridge, Izuku spotted one of his favorite snacks. Brownies.
Who doesn't love brownies? A loser, that's who.
Izuku grabbed one and headed toward the common room to sit on the couch. He turned on the tv to a random hero movie, curled up in his blanket, and took a bite of the brownie.
At first, he didn't really notice anything wrong. It wasn't till after he finished the whole brownie, did Izuku realize he felt funny. It was like a weird bubble was surrounding his head. Time slowed and, Izuku felt so relaxed; his shoulders lost their tension, the racing thoughts became muted and, he felt a little loopy.
Izuku giggled. His mind felt all fuzzy, just like the blanket wrapped around him.
Turning his attention back to the tv, Izuku watched in fascination as the hero delivered a hard blow to the villain. Izuku could totally recreate that. Getting up, Izuku lifted the couch above his head and set it a few feet away so he had some room. Humming in concentration, he let OFA buzz around his body, getting ready to jump. The move was a little tricky. He needed to do a backflip and land on the villain's shoulders, choking them out with his thighs.
The hard part was that the hero jumped off a short building and, he was on the ground. Wait, he would need a villain to fight. Huffing in frustration, Izuku sped walked towards the elevators. Before he could get there, he noticed Aizawa's dorm door was cracked open. Izuku's face lit up with a grin as he got an idea.
Quietly entering, Izuku looked around for his teacher's sleeping bag. He quickly found it on the couch, grabbed it, and wiggled inside. He flopped onto the couch and sighed contently. It was warm in there.
Cracking his eyes open, Izuku stared in surprise. Inside the sleeping bag was like a huge wonderland or secret theme park. There was a bouncy house full of soft beds, a yellow ball pit, a cat petting zoo, and coffee stands. Looking above, Izuku noticed there were bubbles filled with the jelly packs Aizawa loved floating around. He popped one hesitantly and felt the packet drop into his hand.
What a strange place. No wonder his teacher loved to take naps during class.
Izuku walked around some more, noting small details here and there, before coming to a stop at another sleeping bag. He looked around before picking it up. He wiggled inside it just like before and let his head pop through the top.
He was back in Aizawa's dorm, still laying on the couch in the sleeping bag.
"No way," Izuku muttered quietly. He rolled off the couch and slithered out of Aizawa's dorm, heading to the elevator. He needed to show someone. Who would believe him? Before he could get inside the elevator, the doors opened, letting Kaminari step out. A perfect target.
They locked eyes for a couple of seconds, Kaminari in shock and Izuku in determination.
"Midoriya?!" Kaminari whisper shouted. "What the fuck are you doing?"
"Vibing." Izuku scoffed. He's sure he's heard Ashido say that before.
Kaminari choked out a laugh but quickly quieted, not wanting to wake up the dorms. "How did you get Aizawa's sleeping bag without him catching you? That man always has a death grip on that thing!" he asked in amazement.
"I walked?" Izuku said as if Kaminari was being dumb. "Anyways," Izuku slithered so he was standing up in the sleeping bag before unzipping it and motioning for Kaminari to get in.
"Uh, ok?" Kaminari shrugged. He's lost all hopes in understanding what's going on at this point.
It was a tight fit for both of them but, they managed. They wiggled in sync into the elevator and got off on Sero's floor. Once they were in the hallway, they rolled towards Sero's door since it was easier than slithering.
Izuku's foot thumped against the door, trying to wake the sleeping boy up.
Sero yanked the door open, wanting to yell at whoever was interrupting his beauty rest but, stopped short. "What the hell?" he muttered and rubbed at his eyes, hoping this was some weird dream. He didn't want to deal with whatever Kaminari was doing this early in the morning. It was 2 am and they had class in a few hours for fucks sake!
"Hello." Izuku nodded to him and wiggled through the door.
"Come in, I guess." Sero sighed. He resigned to his fate and shut the door.
Kaminari and Izuku somehow made it onto Sero's bed and unzipped the sleeping bag, offering Sero a spot.
"We're going to Aizawa Land," Izuku explained as if that made perfect sense.
"Ok." Sero nodded. He was curious.
Once Sero was inside, they struggled to close the sleeping bag all the way, eventually deciding to leave it slightly unzipped.
"Now what?" Kaminari asked. He was getting sweaty being in there so long.
"We pet the cats," Izuku rolled his eyes.
Sero squinted at Izuku before shooting Kaminari a bewildered look. "Mido, are you ok?" Sero asked hesitantly.
"I feel like the embodiment of if Mitski and The Neighborhood had a musical lovechild." Izuku grinned.
Sero and Kaminari shot each other looks again before each came to a realization.
"You ate my pot brownies!"
"You got hit by a weird quirk!"
Sero jabbed Kaminari in the side before turning to Izuku, "Holy shit dude, you're stoned arent you?"
"No." Izuku scoffed. "Who am I, Giles Cory? I'm not stoned."
Before any of them could talk more, Izuku's stomach growled. Sero unzipped the sleeping bag, ignoring Izuku's protests, and walked towards his secret snack stash. He grabbed a bag of Doritos and tossed them towards the lump of his friends.
Once Izuku's hunger was quelled, he continued his mission. Of what? Who knows.
"Onward, soldiers!" Izuku said as they rolled off the bed and shuffled out of Sero's room.
"Sir, yes Sir!" The other two boys whisper shouted as they collectively crawled down the hallway.
The three of them decided to go to the kitchen and goof around. "Sergent Midoriya! We have located the status of the Bagel Bites!" Kaminari cheered. One of his arms was reaching out of the sleeping bag to grab them out of the freezer.
"Insert them into the microwave stat!" Izuku commanded.
"Right-o!" Sero laughed.
Once the bagel bites were cooked, the three of them tried their best not to get any in the sleeping bag. Aizawa would murder them. "Now what?" Sero wondered. He was getting tired. Kaminari hummed in agreement, his eyes already slipping closed.
"We-" Izuku yawned, breaking his train of thought. Within the next few seconds, they all were fast asleep on the couch, tucked securely within Aizawa's sleeping bag.
The next morning, they woke up to soft laughter, flashes, and clicks. Sero was the first to pop his head out, wondering who was waking them up. He noticed the class staring at them, as well as a certain pissed-off-looking teacher.
Sero quickly slapped Kaminari's and Izuku's faces, trying to wake them up as he made very uncomfortable eye contact with Aizawa. "5 more minutes mom." Kaminari whined.
A new round of giggles erupted from outside the sleeping bag, causing them to stir. Izuku and Kaminari popped their heads out of the sleeping bag, immediately noticing Aizawa.
"All three of you get cleaning duty for a month." Aizawa huffed, trying to hide a small smile. He was getting soft, damnit. Maybe he should expel M*neta, show the class he's still serious.
"Fuck." They all paled.
If the whole class got their own matching sleeping bag at their dorm the next morning, nobody teased Aizawa too bad.