AN: So apparently nitroglycerin smells like caramel...?

Warnings: Kind of Smut(?), Profanity

Word Count: 3918

---

When Izuku woke, he felt...contented.

There was no other way to describe it. He felt like his soul had been filled with something it was missing, like it was the missing piece of a jigsaw. He felt happy, pleased, and like he was whole.

So you can imagine how confused he was when he held strong arms tighten their grip around his waist, legs entangled with his own, a nose nuzzle into his neck and warm breath on his nape. All of that on top of the fact he was in a room he didn't recognise made his mind begin to whir with different possibilities. He dismissed the 'Abducted by Villians' one immediately; why would he feel so happy if he had been kidnapped?

"Deku..." a voice sighed, softly with a hint of irritation, like whoever was saying it knew they were meant to be feeling something but weren't entirely sure what was going on. A worded way of the feeling in Izuku's chest. Then he stiffened, his body going rigid as he recognised the smell (wood and burnt caramel) and the voice that spoke his hero name - or rather, his childhood nickname.

The contented feeling vanished, leaving Izuku apprehensive and fearing what was about to happen. But instead of the impending explosion, Katsuki simply shifted closer to Izuku, moving his chest closer against Izuku's back, and pressing his crotch flush against-

Izuku yelped and practically flew upwards, ripping himself free from Katsuki's limbs and throwing himself sideways. However, his wrist caught on something and Izuku's arm was practically jerked out of it's socket as his momentum was halted, then he continued downwards, body smacking into the wooden flooring, head thudding onto the surface heavily. Izuku's arm was levitated above him, held in place by something he couldn't see. Groaning in pain and confusion, Izuku sat up and stared at his wrist, foggy mind trying to wrap itself around why there was a single shackle on it.

Suddenly, and without warning, the events of last night came flooding into his mind - Kirishima, Yaoyorozu, the knife, Katsuki, Katsuki's room, and then...darkness? Oh. He must have been so tired he passed out.

"What the fu...Deku, why the fuck are you on the floor?" A sharp voice asked, and it took Izuku a moment to realise Katsuki had rolled over to peer over the edge of the bed to lock eyes with the teen.

"O-Oh! I, uh..." Izuku stammered, unable to come up with a suitable excuse, instead blushing.

Katsuki rolled his eyes and swung his legs onto the floor, grabbing the boy's arm and hauling him to his feet. "I'm fucking hungry. I want breakfast."

Almost on cue, Izuku's stomach rumbled, so he didn't resist when Katsuki made his way over to the door and opened it, stepping onto the landing. Almost immediately, they were met by an annoying voice bombarding them with questions.

"Woah, what happened to you two? Have some fun night-time activities? Pretty kinky, isn't it? Why haven't you undone them? Did you lose the key? I thought you two hated each other? Are you dating, or are you just fuck buddies-"

A small blast shot Mineta off his feet and catapaulting down the hall as Katsuki withdrew his arm, not even glancing in the dwarf's direction as he continued on his path to the elevator. Izuku shot Mineta an apologetic look as the purple-haired boy rubbed his neck, looking pained.

The doors opened instantly, so there was no awkward wait. The ride down, however, was especially awkward. Izuku stood shoulder to shoulder with Katsuki, wondering if the blond would push him away. He could help but think of their position this morning. The way Katsuki had his body, his arms protectively curled around him, legs locking him in place, lips dangerously close to his skin, it was weirdly...domestic. So he hid his face, not trusting his eyes to wander and settle on the blond's sharp jawline, or smouldering eyes, or uncharacteristicly pink lips.

The doors revealed the ground floor and Katsuki was leaving immeditaely, heading straight for the dining room. Oh no. Izuku knew that look.

"KIRISHIMA!" Katsuki roared upon entering, all eyes on him as the red head kept his back to the boys and continued to make his cereal, pouring the milk.

"Hi bro," he greeted casually, not showing any signs of being afraid. Katsuki's anger wasn't even directed at Izuku and he was almost trembling.

"You're fucking de-" Katsuki stopped himself short, pausing, before rewording. "I'm going to seriously hurt you if you do not find a way to get these fucking things off us- me. Get these off me."

Izuku's blush intensified.

Kirishima laughed, still not turning around. He said nothing, showing no signs of being bothered to answer him.

"That is not appropriate!" Iida's voice sounded from the kitchen. "Broken cutlery should not be left on the floor, it should go in the bin!"

"Oh, sorry Iida!" Izuku called in way of apology. "Kacchan and I were just trying to take off these handcuffs."

Katsuki huffed and walked to the dining table, wisely choosing a place with a seat to his left so Izuku could sit too. Everyone was staring at them; probably marvelling that Izuku was still alive. "What, extras?" Katsuki growled, snatching up a piece of toast and tossing it onto his plate. At his words, everyone began doing their individual activities, resuming conversations and eating their food, although Izuku could feel their pressing gazes on him.

He was shook out of his daze when something landed in front of him. Izuku's eyes focused and he saw a piece of buttered toast on his plate. "Eat, nerd."

Izuku stared as Katsuki took another slice and began smothering it in jam, then somehow shoving the whole thing in his mouth and swallowing it. He didn't even chew.

Before the blond could catch him, Izuku tore his gaze away and picked up the toast with his left hand, trying to ignore how odd it felt since he was right-handed, and took a bite. The rest of breakfast passed relatively uneventfully, save Mineta stumbling in and beginning to yell something about 'fuck buddies' before a disgusted Hagakure threw a cushion at him, knocking him over flat.

Todoroki approached the two just as their meal was ending, pulling the chair back and sitting on it, poised like he was ready to jump up at any moment. "Why don't you two call a specialist?" he asked, his tone indifferent. "They may be able to get it off."

Izuku blinked, last bite of toast forgotten as he considered the bi-coloured teen's words. "A...specialist?" he repeated unsurely. "Specialist in what?"

Todoroki shrugged. "Handcuffs. I know someone who could help, if you would like."

"I don't need your help, Half and Half Bastard!" Katsuki hissed, body tensed and ready to lunge. Izuku got the urge to quickly steer the conversation back to a useful place.

"Well, Kacchan...we could use the help. After all, do you know any specialists?" He paused, but Katsuki didn't reply, so Izuku turned back to Todoroki. "Go on."

"His name is Erinsi," Todoroki continued, glancing at Katsuki as he turned away, forcing Izuku's arm to bend awkwardly to suit his position. "He's an old friend. If anyone could get these off, it's him."

Izuku beamed. "Thank you, Todoroki-kun!" he gushed, tilting his head to the side. "When can he do it?"

Shrugging, Todoroki got to his feet. "He's quite busy, so maybe a few days?"

In an instant, Izuku was being dragged to his feet as Katsuki practically leapt up, eyes flaming and right hand curled as explosions rippled across the skin. "Did you just fucking say days?" But Todoroki was already leaving, heading for the double doors that lead out of the common area. "Where the fuck do you think you're going?" Katsuki roared after him.

"To get his mobile number," Todoroki answered instantly, not phased by the blond's furious tone. "Did you think I had memorised it?"

Katsuki muttered something incoherent but was most likely a curse of some kind, then nabbed another slice of toast and bit into it. They stayed at the table until Todoroki returned, the phone to his ear as he spoke into it.

"Yes, thank you. That's great." He ended the call and looked at the two. "Erinsi said he has a free slot in three days, at 3pm." He then handed Izuku a slip of paper with an address written on it. "Here."

Izuku took it and glanced at it, noticing it was on the far side of town. "Thank you again, Todoroki-kin," he said, sending him a smile. For some reason, Katsuki tensed beside him and Izuku could feel the waves of irritation flooding off.

Todoroki nodded and wandered off, probably to his bedroom to get...changed.

Oh.

Izuku's face burned and he looked up at Katsuki, who was munching on yet another piece of toast. The blond didn't acknowledge him, just continued to eat, so Izuku cleared his throat, mostly to get his attention but party to prepare himself. Don't blush, Izuku commanded himself. Don't blush!

"Kacchan?"

Katsuki's eyes shut, briefly, and he sighed before opening them and directing the crimson to look at Izuku. "What, nerd?"

Izuku gulped, trying desperately to mentally fan the rising heat in his cheeks. "H-How are we going to get changed?"

Katsuki blinked, his expression going slack for a split second, before his face clouded over and he growled. "Fuck," he muttered whilst getting quickly to his feet, Izuku being yanked after him. He suppressed a yelp of surprise and haphazardly gained his footing, stumbling after the blond who was storming into the kitchen, albeit with the kind of muted anger Izuku only saw him display when he was talking to...

Yaoyorozu turned at their sudden entrance, hands covered in soapy water and a dish in hand. "Yes?"

Katsuki turned his head for a moment, like he was quelling his pride. "How good are you at making clothes?" he asked, eyes narrowed with the effort it took him not to swear. Izuku made an 'O' shape with his mouth as he realised what the boy was getting at.

The dark-haired girl's eyes lit up, dish dropped into the basin as she bounded forwards. "Brilliant. What are your measurements?" she queried, blinking as her eyes scanned both Katsuki's and Izuku's bodies, as if mentally taking note of their sizes.

"Get your eyes off me!" Katsuki exclaimed, swatting her hand away. Yaoyorozu didn't seem bothered. Before Katsuki could make this any worse than it already was by ruining their one chance to make this easier on them, Izuku interjected.

"Maybe some t-shirts with a zip down one side? The right for me, left for Kacchan?" he blurted, noting how Katsuki's head snapped around to face him. "And up the sleeve too," he added bashfully.

Eyes glittering, Yaoyorozu nodded."I'll be right back!" she said, running off to find something.

Katsuki stepped into Izuku's field of view. "You didn't have to speak for me, nerd."

"Well, the way you were talking, Yaoyorozu-san wasn't going to do anything for us. You really should learn to control your temper, Kacchan," Izuku said absently, then realised the words that had just left his mouth, his free hand flying up to cover it. "A-Ah, Kacchan, I didn't mean it!" he stammered, eyes wide.

Surprisingly, Katsuki didn't have a look of murderous intent on his face. Instead, it was drawn. Almost as if he had forgotten he was in company, he nodded slightly. Then his eyes burned. "Shut up, nerd!"

Just as Katsuki's hand flared up and Izuku cowered away, unable to escape, Yaoyorozu returned, unperturbed by the scene. She carried a bundle of clothes, an assortment of coats, hoodies and tops, both long-sleeved and short-sleeved.

"Wow, uh, Yaoyorozu-chan," Izuku said, straightening up and inching away from the blond slightly. "I don't think we needed that ma-"

"Nonsense!" Yaoyorozu beamed, tossing the bundle of clothes into his arms. Izuku brought both forwards, pulling Katsuki forward a few steps and earning himself a glare. "You might need to change sometimes, and it might be extra cold too."

Izuku smiled. "Thank you!"

Yaoyorozu shrugged, passing the two and picking up the washing up where she left off. "Not a problem."

Katsuki did his signature "Tch," sound, taking a few of the clothes out of Izuku's arms and stalking forwards, back to the elevator. Had Izuku not been shackled to the boy, he would have stood and stared at the gesture. As it was, he dutifully trotted after him.

The elevator doors were already open, so the ride up was short and silent. Due to the fact both of their arms were wrapped around the clothes, they had to stand uncomfortably close to one another, Katsuki's elbow brushing against Izuku's upper arm, the skin-to-skin contact making Izuku shiver and his heart jump about in his chest. Far too soon, yet simultaneously not soon enough, the doors slid open and they headed down the hall. Katsuki awkwardly opened the door with one hand, balancing the bundle of fabric with one arm and his chest, then stormed inside and unceremoniously dropped the clothes. They were all plain, greys and blacks and blues, with something red in there too. Izuku let go of his too and they landed beside the other pile.

"Don't look, nerd," Katsuki demanded. Feeling a tug on the chain on his wrist, Izuku's natural inclination was to turn around. Katsuki was tugging his pyjama trousers down, exposing his boxers. Izuku immediately flicked his eyes back, hiding the blush. He tried to manouver his hand to make sure he wasn't getting in Katsuki's way, to no avail.

"Stop pulling!" Katsuki yelled, angrily yanking on the handcuffs.

"I can't help it!" Izuku whined. "I don't know where you're about to move."

Katsuki huffed, then stepped to the side and into Izuku's field of vision. "Uah! Kacchan!" Katsuki was standing there, trousers still hooked around one ankle, exposing his toned legs, tanned and smooth. His boxers were very, very tight, not leaving much to Izuku's imagination.  "What are you doing?"

Katsuki's face contorted into a scowl. "Just fucking help me, Deku."

Izuku desperately tried to ignore the feelings that were swirling inside him, and knelt down, using his free hand to tug at the cuff. When it didn't come off, he frowned, adjusting his grip and pulling down his other hand, mentally apologising to Katsuki as Izuku heard him mutter something unintelligible under his breath, bending over awkwardly to allow Izuku to pull at the material a little harder. Setting his expression, Izuku readied himself, yanking forcefully on the material. However, he overestimated the amount of force he needed to use, so when the material slid over Katsuki's heel, there was still an overabundance of momentum, causing Izuku's hands to go flying over his head and, because of the way him and Katsuki were shackled together, the blond was made to fall with him, his broad chest crashing into Izuku's and making both of them lose their balance completely, Izuku squeezing his eyes shut as he waited for the impact.

When it never came, he furrowed his brows, suddenly aware of a strong arm supporting his back. He hesitantly opened his eye, to see Katsuki's face inches from his, eyes devoid of anger and filled with confusion, slight irritation and...desire? His lips were slightly parted, breath comfortably warm on his face, eyes gazing at Izuku with such gentleness that he couldn't recall Katsuki ever showing. Izuku blinked his big green eyes, almost asking a silent question. Katsuki's response?

Leaning down, so close that their lips were almost touching, and whispering, "You're too clumsy, Deku."

He unhooked his arm from around Izuku's back, the greenette falling to the floor with a thud, his brain not responding. Then he straightened up, Izuku's arm being jerked upwards and forcing him to sit up. Katsuki used his free hand to pull Izuku up, the freckled boy still staring blankly ahead as he tried to comprehend what had just happened. He felt his legs blindly following Katsuki as the blond headed around the room silently, albeit not awkwardly. How was he not...!

After a moment, there was the sound of metal against metal and the ripping of fabric, and Izuku's eyes focused on Katsuki cutting his shirt off him with scissors, the methodical snipping being the only noise until Izuku squeaked. "Kacchan!" he protested. "What are you doing?"

Katsuki shrugged. "How were you planning to get it off?" His face was completely, totally calm, so different to what Izuku was used to. It was unnerving.

"I...uh..." Izuku trailed off, casting his eyes down then immediately back up, since Katsuki still had no trousers on. Katsuki snorted, then finished cutting of Izuku's top and cast it to the side. He surveyed his chest, eyes following the dips and lines of his muscles, then took the blades to his own shirt, cutting up the side and sleeve, pulling it off then stooping to pick up one of the shirts. Izuku just stood there, starstruck, as Katsuki judged the shirt and slipped it over his head, tucking his free arm into the normal sleeve then zipping up the side of the other one.

Izuku stared.

Katsuki noticed and smirked. "You like what you see, nerd?" he asked, raising an eyebrow.

Izuku nodded absent-mindedly, then quickly covered his face with his hand to hide the blush, a quiet squeal emitting from his throat, anticipating Katsuki's explosive reaction. He stayed like that, not wanting to look at Katsuki and see his reaction, until a calloused hand clasped his own, warm and strong. "Deku."

Izuku didn't move, but did quieten down, the silence in the room enveloping him.

"Are you really that scared of me?"

"Huh?" Izuku pulled his hand down, gazing up at Katsuki. His eyes were locked onto Izuku's, fierce but not annoyed. More...upset. "I...I'm not scared of you, Kacchan."

Katsuki scoffed, the hurt evident. "Oh, really? Then why are you always cowering away, hiding? Why are you so strong with everyone else, but never with me? You're afraid of me! Admit it! Fucking say it, you-"

Katsuki didn't get to finish, because Izuku, in the spur of the moment, covered the space between them and pulled on the collar of the shirt Katsuki had just put on, pressing his mouth onto his.

Katsuki, to say the least, was surprised, eyes wide open and staring at Izuku's closed ones, not blinking. As if Izuku realised he was kissing his childhood friend, his bully and his rival, he pulled away, eyes cast to the side, and repeated in a much stronger voice, "I'm not scared of you, Kacchan."

Now it was Katsuki's turn to stare and boy, did he. He took in every little detail of Izuku's face, from the way his eyes glimmered in the light, showing the little flecks of gold in amongst the green, to the way his freckles formed little constellations across his cheeks, their own little Milky Way. Izuku held in a breath as Katsuki lifted a hand and cupped his cheek, the thumb gently caressing the skin. His other hand - the one shackled to Izuku - was pressed gently on the left side of his chest. "If you aren't scared," Katsuki murmured, "why is your heart beating so fast?"

Izuku almost frowned, about to state the obvious - that Katsuki was standing unbearably close, still wearing next to nothing on his bottom half, with his fingers stroking Izuku's freckles and peering at him with such piercing eyes that Izuku didn't even know what to do with himself - but refrained from it, not wanting to ruin this wonderful atmosphere. Katsuki Bakugo, notorious 'tough guy' with a spiky exterior that didn't let anyone near, was being so quiet, so tender. So, instead, he stayed silent, enjoying the moment, leaning into the blond's touch, craving more of it, keeping his green eyes on red. 

Katsuki tilted his head slightly, pressing his thump against Izuku's bottom lip and pulling downwards, the slight pop having some sort of effect on both of them, as the mood changed, turning from almost hesitant to passionate in an instant. Katsuki was the first to move, his lips closing the distance between Izuku's and connecting them, his hand looping around Izuku's bare waist and pulling him close, chests flush against one another as Izuku moaned, bringing his arm up to wrap around the blond's neck, feeling his surprisingly silky locks brush against his skin. Katsuki's tongue ran against Izuku's bottom lip, practically begging for entrance, and Izuku willingly complied, opening his mouth to deepen the kiss. As Katsuki's tongue explored the new area, his arm shifted from Izuku's waist to his ass, pulling him upwards. Izuku knew what he was trying to do immediately, jumping up and locking his legs around the blond's hips, pulling back just for a second to see Katsuki's face dusted pink, panting and eyes dark with lust.

"Deku," he began, but Izuku was too lost, too far gone in the moment to allow any time for talking. He threaded his hands though the ash-blond hair as he kissed him once again, trying to take control of the situation but failing. Izuku's body weakened as soon as Katsuki moved away from his mouth, lips and tongue trailing down to his neck and sucking, licking, and biting on one spot. Izuku threw back his head in ecstasy, moaning Katsuki's nickname, not caring if anyone heard because this felt so good, too good to be real.

Seemingly motivated by Izuku's lewd sounds, Katsuki sucked harder, releasing the newly-formed hickey from his mouth with a pop and moving to a different spot, running his tongue over the unmarked skin. Izuku mewled, and Katsuki knew he had found the boy's weak spot, so he took his gentle time, not sucking hard enough to leave a mark, only to leave the boy as a whimpering, horny mess.

"Ka-Kacchan," Izuku choked out, pulling on the blond's locks as Katsuki nipped on the spot. "Don't...t-tease," he begged.

Katsuki smirked, moving away from the spot to look Izuku in the eyes. "What do you want, Deku?"

Izuku's green eyes locked onto red, and he said in as confident of a voice that he could muster. "You."

The next hour was one of pleasure for both of them, neither caring of the noise they were making, the time they were taking or the mess they would later have to clean up. After they were tired out, they snuggled into Katsuki's bed, no longer worried about clothes or being embarrassed. After a moment, Izuku spoke. "Kacchan?"

Katsuki blinked as Izuku craned his neck to look at the boy from where they were laying, body's curled into one another. "What?"

"I...I thought," Izuku paused, collecting his thoughts. "I thought that this would be bad." At Katsuki's raised eyebrow of annoyance and vague amusement, Izuku blushed profusely. "N-Not the sex!" he clarified, covering his face with his free hand. "This whole situation. The handcuffs. But..." he trailed off, voice slightly muffled. "I'm glad. I really like you, Kacchan."

Katsuki chuckled under his breath, placing his palm onto Izuku's hand and prising it away. "Don't hide." He saw Izuku's eyes were screwed shut, so he placed a finger on each one. Izuku opened them, gazing up at the blond.

"I like you too, Deku."