Chapter Text
Izuku and Katsuki had been sent on a two day long mission by Aizawa to an abandoned warehouse on the outskirts of the city, where a group of villains were rumoured to be hiding out. There was a change one of the villains had a powerful quirk and the building was old and possibly dangerous so they were told to be extra careful and vigilant.
Izuku was less then pleased to be on a mission alone with Katsuki. Him and Katsuki had been getting closer lately, even so they still fought like cats and dogs most of the time.
Izuku cared deeply about Katsuki but was starting to get tired of putting up with Katsuki's bs, but still thought of Katsuki as one of his best friends even if he knew it wasn't mutual. Izuku just hoped he and Katsuki could get along for the two days.
So far everything was ok, Izuku and Katsuki hadn't fought once, sure they had only just got to the warehouse but even that was good, better then normal even...suspiciously well even, maybe that was just Izuku being paranoid though.
As they approached an entrance to the warehouse they heard movement from inside. "Do you hear that Kacchan?" Izuku whispered to Katsuki. "Tch, of course I do nerd," He muttered to Izuku ducking behind a shipping container. "Sounds like at least 3 of them in there." Izuku followed Katsuki behind the container. "We should look for another entrance, I'll scout around the side." Izuku said, slowly making his way around the side of the container, staying out of view of the entrance for as long as he could.
After a few minutes Izuku came back, "There's a small hole in the side we could fit through," He pointed to the side farthest from the entrance "It looks safe and we could sneak up on the villains-" "I'm not squeezing through some dumb hole! We can take them, lets just go straight in!" Katsuki interrupted Izuku not even letting Him finish. Typical .
"No Kacchan, that's a bad idea!" Izuku grabbed Katsuki's arm to stop him moving. "Let me go shitty nerd!" He growled, pulling his arm away.
"If you're too scared to come just wait here like a dumb useless extra, Deku!" Katsuki said scathingly walking to the entrance with Izuku reluctantly following him, unwilling to split up, "Aizawa-sensi said the villains might be stronger then other's we've fought and to be careful!" Izuku tried to convince him, he needed to make the blonde understand but as usual Katsuki's ego was too big to listen to Izuku.
"I'll go in first, nerd," Katsuki said with his usual confidence.
Katsuki and Izuku were right outside the entrance, despite Izuku's reasoning Katsuki would not listen.
"Kacchan, Aizawa-sensi said we should do this quietly, search the building and then watch this place from one of the other buildings!" Izuku begged, just wanting Katsuki to do this one thing the proper way.
"Hell no, we're doing this as fast as possible, I don't want to spend any extra time with just you Deku." His words stung Izuku but he tried not to let Katsuki's words affect him.
"Fine Kacchan, just be careful." Katsuki scoffed at Izuku's words but didn't say a thing.
Katsuki burst through the door "SURENDER YOU SHITTY VILLAINS!" He yelled, letting off small explosions as the three or four villains scattered.
'what is up with Kacchan?' Izuku thought, although Katsuki was normally kind of like this but he would normally never do something so rash and reckless.
"This way, Kacchan!" Izuku called to Katsuki, running after two of the villains, Katsuki on Izuku's heals.
Bang!
Suddenly everything went dark and the next thing Izuku and Katsuki knew they were tightly squished together in some sort of old metal box or container.
Izuku blinked blearily, his eyes adjusting to the dim light.
"Kacchan?" Izuku poked Katsuki who was still unconscious.
"For fucks sake Deku!" Katsuki was awake and pissed. "WHAT DID YOU DO!?!"
"Don't try to blame me, Kacchan!" Izuku protested, refusing to take the blame for this.
"Of course it's your fault, you damn nerd! You always get in my way!" Katsuki shifts in the cramped space, his shoulder pressing against Izuku's as he tries to create some distance, cursing under his breath.
"You're squishing me Kacchan!" Izuku pushed Katsuki back but it barely did anything, it was hot and cramped and the rusty box kept snagging on Izuku's suit. 'my costume might rip!' Izuku thought worriedly.
"Well I can't exactly move, can I! This shitty box is too small!" Katsuki yelled trying to kick the box but failing due to lack of space.
Katsuki's face was red from anger and embarrassment at getting captured and being stuck in A BOX with Izuku.
Izuku sighed exasperated at both being stuck in a box and at Katsuki's refusal to accept that this was his fault. 'This is all Kacchan's fault, if he had just done things the proper way-' Izuku was snapped out of this thoughts by a sharp poke to the chest.
"Stop your stupid fucking muttering, Deku! This is NOT my fault!" Katsuki growled, his hot breath fanning across Izuku's face. 'Kacchan smells like burnt sugar, it's kind of nice-wait no, no more muttering!' Izuku thought furiously trying to stop muttering, feeling very self-conscious of his habit.
Izuku muttered an apology and tried to move back but only succeeded in pressing closer to Katsuki. 'I'm so close to Kacchan, this is kinda nice, being so close to Kacchan-NO! this is NOT nice, I need to think of a way out.' Izuku was muttering again, blushing slightly from the proximity to Katsuki.
"...Who cares who's fault it was, we need to get out of here and fast, Kacchan." Izuku gathered his thoughts though Katsuki still floated though his mind.