Chemistry of Souls

僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia
F/F
F/M
M/M
Multi
G
Chemistry of Souls
Summary
Bakugo knows his soulmate is Izuku Midoriya. His actions were irredeemable, a relationship between them? Impossible.What happens when somebody finds out Deku is his soulmate and a little competition gets added into the mix?
Note
Hello! Thank you for reading. This story is finished and will have 12 chapters. I will be posting a chapter a day. Let me know what you think as you read. I love reading your comments sm. I hope you enjoy reading it as much as I enjoyed writing it.
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Chapter 6

Bakugo was going to blast Todoroki’s face off. 

 

It started a few days ago. They were sitting at their opposing desks, both a little early when Todoroki walked past dropping a bento box on Deku’s desk. Bakugo glared at him from his seat. Since their desks were right across from one another he was close enough to see the slight blush on the other man as he exclaimed “thank you for the breakfast!” 

 

The next day, they were getting dressed after training. Bakugo, Deku, and Todoroki had training together again. They had all showered and were changing back into their costumes when Todoroki decided to walk up to Deku saying “Your hair is getting pretty long isn’t it?” Then the bastard TUCKED A PIECE OF HAIR BEHIND DEKUS EAR. 

 

Bakugo watched from his locker, fuming with rage. Todoroki was just trying to piss him off. It was obvious by the way he made eye contact with Bakugo after he did it. He kept his anger in check and simply slammed his locker before walking out. 

 

As if the other man knew Bakugo was close to his limit he took a day off from the torture. However, things resumed the next day when he decided to squeeze in between Bakugo and Deku who were talking about work.

 

“Excuse me,” he said, grabbing Deku’s waist as he walked past. 

 

Just like every thirsty man did to random women. Using it as an excuse to sneak in a touch. He wanted to punch him in the face but yet again he held himself back. He reigned in his anger trying not to blow up. 

 

Later that same day Todoroki tried that sneaky I’ll touch your waist as I go by trick again. 

 

“Excuse me,” Todoroki said as he attempted to squeeze behind Deku. Bakugo was ready this time and pulled the green-haired man flush against him instead. 

 

“You’re excused” he replied with a glare. 

 

The bastard had the nerve to chuckle before walking away. He was definitely trying to provoke Bakugo. Much to his annoyance it was fucking working. He was pissed every time he saw the two of them together. 

 

___ 

 

“Hey Midoriya,” Todoroki said during their lunch. 

 

The three of them were eating together, unfortunately. He glared at the other man knowing whatever he was about to say couldn’t be good. 

 

“Do you want to go dancing with me tonight? We never got to go.” He grit his teeth waiting to hear Deku’s answer to the other man’s question. 

 

“Sure, let’s go.” 

 

He huffed at the same time Todoroki flashed him a satisfied smirk. Yeah, today was the day he’d blast his face off. He started to stand up but Deku suddenly spoke again. 

 

“Kaachan, do you want to come?” 

 

Both men look at him in shock. Deku was looking down at his food and his ears were turning pink. Why would he invite Bakugo? Should he say yes or no? He had to say yes. He definitely didn’t want Deku and Todoroki dancing alone. Would Deku dance with him? Or would he have to watch the other two dance together? He’d probably burn the place down if that happened.

 

Instead of an answer, he asked a question back “you want me to come?” 

 

“Yeah, you want Bakugo there? I bet he can’t dance.” 

 

The fuck? “Shut your face IcyHot. I dance better than you ever will.” He’d be willing to bet money that Todoroki couldn’t dance. 

 

“Sure, come tonight and we’ll both dance with Midoriya. He can decide who dances better” 

 

Damn him. He wouldn’t be able to dance with Deku and stay in control. Having their bodies pressed together would be the death of him. He was bound to mess it up in some way. FUCK! He’d have to watch those two dance together as well… but this would be his one chance to know what it’s like to actually hold Deku. It wouldn’t be strange and Todoroki had given him the perfect excuse. If he started getting too into the dancing he could always say he was just trying to be named the best dancer, it didn’t mean anything. He couldn’t pass up this opportunity. 

 

“Shoto-…” Deku started to say but he cut him off 

 

“I’m in. You’re going down half n half.” 

 

“Kacchan-…“ 

 

“Tonight, let’s meet at the hero bar we all went to when we graduated U.A.” Todoroki suggested cutting off whatever protest Deku was about to give. He smiled dangerously before agreeing. 

 

He was going to make the most out of tonight. He’d have to make sure he didn’t let his anger get out of hand when he watched Todoroki dance with Deku though.

 

___ 

 

They argued about their outfits when they arrived. Bakugo’s dad was into fashion plus his internship with Best Jeanist made him secretly a fashion snob not that he’d admit it. 

 

Currently, he was wearing a mesh see-through fitted shirt. He paired it with some slim-fit slacks. For jewelry, he had on a simple bracket that matched his necklace with a few rings. He also had in some dangle cross earrings. The entire thing was black making it simple yet effective. It complemented his psyche very well. 

 

Todoroki on the other hand had on a pair of regular-fit jeans with a simple black sweater. Them both wearing black annoyed him a bit but Todoroki didn’t have on a single accessory and he was dressed like he planned to go to a coffee shop, not a club! This started their argument. 

 

Despite the other man’s claims that he thought his outfit was appropriate Bakugo started fixing his outfit for him. 

 

“Are your ears pierced?” He asked as he rolled up the sleeves of Todoroki’s sweater slightly, so they stopped halfway down his forearm. 

 

“Yes.” 

 

“Then where are your earrings?” He snapped. 

 

“I don’t own any,” Todoroki said with a shrug. 

 

“Ugh, IcyHot I swear…” he grumbled, taking out his left earring and placing it in Todoroki’s ear. It took a minute for him to find the hole but he finally got it in there. He stepped back giving him a once-over. 

 

Almost there, he added the bracelet from his own wrist to Todoroki’s to help complete the look. Since Bakugo’s shirt was mesh and showed off a lot of his body people wouldn’t be looking at his wrists as much anyway. The bracelet and earrings helped to elevate Todoroki’s look more than Bakugo’s anyway. 

 

“Wow, Bakugo, I never knew you could be so sweet. You two almost look like a couple.” Ashido’s voice came from behind him. 

 

The hell was she doing here? He scowled at her, turning around but when he saw Deku next to her his jaw dropped. Deku was looking at Ashido in shock, saying something but he couldn’t hear it. He was busy checking the other man out. He was wearing a crop top, showing off his toned stomach. Bakugo had seen it a million times but he’d never seen Deku dressed in a crop top. He usually wore oversized clothes except for his costume. Underneath the top, he has on a long sleeve fishnet top. It had to be a crop top as well because he couldn’t see it except for on his arms. His jeans were sitting low on his hips showing off the V he had trailing down. 

And FUCK. 

Right there on the left side was the dark blob on his hip. Their soulmark was fully on display for him to see. 

 

“Bakugo, you’re drooling,” Todoroki muttered in his ear causing him to finally come back to his senses and close his mouth. 

 

This time Todoroki talked louder where the other two could hear “Ashido, nice of you to join us. About what you said, we are definitely not a couple. I see Bakugo as more of a best friend.” 

 

He stiffened, masking his shock. He did consider Todoroki to be a friend but he wasn’t aware the other man considered them to be that close. With all his recent shenanigans involving Deku, he had been close to fighting him all week. Best friends huh? He’d have to think more on that later. Right now he needed to say something before his silence got suspicious.

 

“What are you doing here Raccoon Eyes?” 

 

“Obviously you guys needed somebody to help spice up the night. But Midoriya asked me to help him with an outfit then invited me. He looks great, doesn’t he? I know he does because I’m amazing. I really wanted to bring out his assets with this outfit. I’m so jealous, he fits into these jeans way better than I do. I wish I had an ass this nice” She said enthusiastically slapping Deku’s but causing him to squeak. 

 

He was shocked at her actions but he had to admit she was right. Deku looked delicious right now. He had tried to avoid looking too much at Deku’s figure before because it was something he couldn’t have but now that it was on display he couldn’t help but admire it. Small lean hips, ass firm, and round because of all their training. Deku was now blushing intensely and talking rapidly but he couldn’t hear a word. He was still, as Todoroki put it, drooling. 

 

After those three talked a bit more they finally decided on heading inside. Bakugo realized he still hadn’t said a word to Deku but truthfully he was speechless as he kept his eyes trained on his soulmate. They walked in and Ashido suggested drinks immediately “because why go to a club if you aren’t going to drink,” she said. He would probably end up having to take care of all three of them since he refused to drink. 

 

Deku and Ashido walked away to grab drinks leaving him alone with Todoroki yet again. 

 

“He looks great huh?” 

 

“Do you like him or not Icyhot?” He snapped at him, annoyed. All this flirting with Deku recently had made him want to ask this question more than once recently. 

 

“No, you’re more my type,” Todoroki said stepping up to Bakugo close enough for their chests to almost touch. 

 

Despite the man’s actions, he had said it in that normal bland voice of his. His words vs his demeanor never quite matched up. Bakugo didn’t even remotely believe he was Todoroki’s type. He narrowed his eyes at the man, irritated that he was still slightly taller than him. 

 

“Okay, I’m done joking. I think your reason for not pursuing Midoriya is, what’s the word? It’s stupid. So perhaps a little competition is what you need to make a move.” he tilted his head down making their difference in height slightly more noticeable. 

 

“Mind your business Icyhot,” He warned him. 

 

“I’m doing this for you my friend.” 

 

Before he could snap at him Ashido materialized out of nowhere. He didn’t recall her being so sneaky. He had to be too distracted to not notice her bright pink skin next to him. 

 

“The sexual tension between you two is so interesting.” At her words, he glared and Todoroki stared at her confused. Deku was looking between the two of them with a frown but none of them spoke. 

 

“Actually, I think I have more sexual tension with Izuku,” Todoroki said this while staring straight at Bakugo. 

 

Damn him. He was laying it on thick. He even used Deku’s first name. A few seconds ago he was calling him Midoriya but now it was Izuku? He was playing his part as a rival a bit too well. Bakugo itched to blast him in the face. 

 

“Ooo spicy. I’m sooo glad I came. The others are going to be upset they missed out.” Ashido spoke yet again. 

 

Bakugo was getting tired of hearing her speak. He snapped at her to shut up but she just let out an amused laugh before grabbing his arm and pulling him to the dance floor. Not expecting her to do that, he was easily caught off guard. He looked around but couldn’t see Deku or Todoroki anymore. He hoped they hadn’t walked to the dance floor as well. 

 

“Support me,” Ashido yelled to be heard over the music. 

 

“Support you doing what?” He snapped voice naturally louder than most. 

 

“Being a slut!” She yelled back, lacing their fingers together using him as leverage so she could drop to her knees and shake her ass. 

 

His face flamed in embarrassment as men around them ooh-ed and ahh-ed at her performance. Women started to take notice and cheer her on as well. He wanted to let go but then she’d fall. To prevent that he kept a firm grip on her hand while she continued with her actions. 

 

He kept his eyes firmly planted on the small crowd around them. Some guy with a doglike face tried to reach down and grab her ass. 

 

“Hands off” he snapped, letting off a small blast to keep him back. It wasn’t enough to hurt anyone, just enough to show off his quirk letting the man know he meant business. 

 

If Ashido wanted to be touched, she would’ve let Bakugo know. It was creepy for a stranger to try and touch her without even introducing himself anyway. 

 

“Thanks Bakugo!” She called from her position on the floor. 

 

Her knees had to be tired by now but it’s like she was being fueled by the crowd to continue. The attention was somewhat annoying and he still wanted to find out where Deku and Todoroki had gone but he wasn't going to leave Ashido either. 

 

She finally unlaced their fingers rising up to be bent at the waist and she moved her grip to his hips. Using his body for leverage yet again she resumed her ass shaking. A woman walked up next to him and called into his ear

 

“Is that your girlfriend?” 

 

“Hell no” 

 

At his reply, she bent down to Ashido’s level. He couldn’t hear what she said but whatever it was Ashido nodded. The woman moved to stand behind Ashido. She moved in time with Ashido’s hips, slapping her ass as she did. He looked away feeling slightly awkward at the display. Not sure what to do with his hands he placed them in his pockets. 

 

He felt like a bodyguard standing stiff as Ashido used his hips to help her grind on the woman behind her. He had no idea if the pink girl was into women or not but she was such an enthusiastic free spirit kind of person he could imagine it. It wasn’t his business either way. After the song ended she rose up freeing him from being her support. 

 

“Thank you! Go find your man.” She said kissing his cheek before turning to face to the woman she’d been dancing with. 

 

He wasn’t sure which man she was referring to since she kept hinting at a him plus Todoroki ship. Either way, neither man belonged to him. He definitely didn’t want Icyhot though. He searched the crowd looking for a tall man with white and red hair. He’d be easier to spot than Deku, especially with his height. 

 

It didn’t take him long to find the two of them. Todoroki was standing in front of Deku, his arms stiff at his sides while Deku’s were around the taller man’s neck. Looks like although he planned on proving his dancing skills, the two-toned bastard couldn’t actually dance. 

 

Bakugo smirked to himself as he sauntered over to them. He’d already decided on his way over that he’d act how he always wanted to and blame it on the competition. Walking up he pressed up against Deku’s back, sliding his arms around his waist. 

 

“K-Kacchan?” Deku squeaked.

 

“Yeah, it’s Bakugo,” Todoroki answered for him.

 

Deku’s skin felt so warm under his touch. He didn’t start dancing yet, just held Deku in his arms. 

 

“Looks like Icyhot actually can’t dance.” He taunted. He actually didn’t care whether he could or not. He just needed a reason to grind on Deku right now. 

 

“Let’s see you do better.” Todoroki’s voice was so monotone it was hard to take him seriously sometimes. However, he said exactly what Bakugo wanted him to say. 

 

“Oh, I will. Do you mind if I show off my dancing skills?” He asked Deku. He didn’t want to let him go but if he said he minded he would let him go instantly. No matter how badly he wanted to touch Deku he didn’t want to force it. 

 

“I uh… N-no! I don’t mind.” 

 

He started to grind on Deku and used his hands on the other man’s hips to make them sway to the beat. He moved his body exactly in time with Deku’s. Their bodies molded together. Todoroki was watching them and seemed like he was taking notes. Deku's hands were still firmly planted around that man’s neck though. Bakugo didn’t want that, he wanted to fully have Deku’s attention. 

 

He slid one hand up Deku’s body. Briefly going under the crop top then skipping his chest to slide his own hand down Deku’s arm. His fingers brushed over the fish's next material, he wanted to tear it off so they could be skin-to-skin but he was grateful for even this much of a connection. 

 

His hand finally reached Deku’s, he laced their fingers together and pulled his arm away from Todoroki. He pulled both their arms close to Deku’s body. Resting his head on his shoulder they were completely connected except the second arm that was still on Todoroki. Nothing he could do about that one unless he wanted to let go of his hip which he definitely didn’t want to. He could feel Deku breathing harder than usual, more gaspy. Good, he was having an effect on him. 

 

As the song ended Todoroki removed Deku’s hand and moved to walk away. The green-haired man tried to look at Todoroki but Bakugo’s hold was preventing him from moving. Bakugo didn’t bother looking at Todoroki as he stepped up next to him. 

 

“Have fun” he whispered in his ear before disappearing into the crowd. 

 

Damn. He hated to say this but he might have to thank that bastard later for even making this possible. He didn’t dwell on that for too long though. 

 

He started trying to untangle him and Deku and was pleased to hear Deku make a sound of protest. Perhaps he did actually have a chance with him, he thought happily. Not wanting to let him go for long he turned Deku around so that they were face to face. 

 

His cheeks were so pink they were almost the same color as Ashido’s skin. He gazed at the freckles on his face before finally making eye contact. Deku’s eyes were wide, deep pools of green widened in what looked like shock. As the next song started Bakugo started to sway, moving Deku’s hips in time with his own again. 

 

This time their crotches were pressed together. He prayed he didn’t get hard as he moved to the beat. Keeping his eyes trained on Deku’s face for any signs of displeasure, he found none. He did see the other man biting his lip though, more like he was thinking of something than actually bothered. 

 

“What is it?” He asked him just loud enough to be heard over the music. 

 

“Uh… n-nothing,” Bakugo leveled him with a look prompting Deku to continue “well… it’s just you didn’t speak to me at first. You spoke to Todoroki and Ashido though. And well I thought I might… uh might’ve done something wrong. But based off… your… dancing I guess not and also… uh… I was just wondering… how do y-you think I look? Wait! No, don't answer that. I know it’s probably strange seeing me in these clothes. I just wanted to try something new because-…” 

 

“Deku,” he said softly knowing if he didn’t stop him the other man would just keep going “m’sorry I didn’t say anything.” 

 

He addressed the first part. Thinking back he hadn’t said anything to him before Ashido dragged him off to dance. He hadn’t meant to but he was speechless. Yet he thought that Bakugo would think it was strange? He looked damn good right now. He usually looked good in a cute, nervous, nerd kind of way. This new look? It was hot and edgy compared to his usual style. Bakugo thought he looked good no matter what though. 

 

He knew if he wanted to comment on his looks he couldn’t face him. He wouldn’t be able to hide the feelings, so instead he leaned down and said into his ear.

 

“You look… tantalizing,” he said finally after searching for the right word. 

 

Tantalizing: possessing a quality that arouses or stimulates desire or interest. also: mockingly or teasingly out of reach.

 

That one word revealed more than he intended but it fit so perfectly he couldn’t help it. He could imagine Deku’s mind defining the word right now. He would be willing to bet that Deku was thinking about whether or not Bakugo knew the meaning of the word he used. He wanted to tell him that he meant exactly what he said and used it for a reason but he didn’t want to push it. This was already more than he had ever hoped for. 

 

Not knowing if he would get the chance again, he placed a kiss right underneath Deku’s ear. Since their bodies were pressed together he could hear and feel Deku’s sharp gasp and the way his body tensed up. He should’ve regretted his actions, but he didn’t. He’d do it again if he thought he could.

 

Instead he did damage control. 

 

“I’m a much better dancer than Icyhot, aren’t I” 

 

“H-huh? Oh…. OH! yes…” Deku sounded breathless as he said it then as if coming to his senses he quickly added “WAIT! Don’t tell him that. I know it’s a competition but I don’t want to hurt his feelings. Oh man I know you’re going to tell him, you like winning too much. Ugh” 

 

He let out a small smile as the man rambled on, quickly forgetting the kiss. Bakugo wouldn’t forget it though, he’d remember today forever. He detangeled their bodies and drug Deku toward the bar so he could buy him another drink. They ended up finding Ashido and Todoroki there. 

 

Deku took a seat by Ashido, and those two quickly started talking energetically. Deku kept looking at Bakugo then blushing and looking away. He hoped that reaction meant Deku enjoyed their dancing and the slight kiss. He wanted to attempt flirting some more but he didn’t want to push his luck. He didn’t have any excuses this time. 

 

That reminded him, there was something he had to do. Walking up to Todoroki he slung an arm around his shoulder.

 

“Thanks I guess,” he muttered 

 

“I’m told that’s what friends are for.” With that monotone voice of his, he could’ve been serious or he could’ve been joking. Regardless, Bakugo decided to buy him a drink as well. 

 

Even though it was annoying as shit, everything Todoroki had done led to him being able to know what it would be like to hold Deku. To dance with him. To kiss him even if it wasn’t on the lips. He never even dared to hope for an opportunity like this.

__ 

 

The other three were extremely drunk. Bakugo ended up catching a taxi for the four of them. There wasn't enough room so he ended up with Ashido curled up in his lap since her stop was first. He helped her into her apartment before making her promise to lock the door. After he heard the lock turn he went back to the taxi. 

 

Todoroki was next. Surprisingly he was a very emotional drunk. Usually, Iida dealt with him when he was drunk so Bakugo had no idea he was like this. 

 

“Besties. That’s what they call it apparently. Katsuki and Izuku are my besties” he slurred as Bakugo tried to get him to his front door. 

 

Unlike most of them, he had purchased a house for himself over an apartment. Unfortunately, this house had a fuck ton of stairs that Bakugo was trying to get him to walk up. 

 

“Yeah yeah, besties,” he replied, ignoring Todoroki’s unusual use of his first name. He had never called Bakugo by his first name to his face. 

 

It was taking too long and Todoroki wouldn’t shut up. Bakugo stopped, moved in front of Todoroki, and made him get on his back. Luckily Bakugo kept up on his training so picking the other man up and racing up the stairs was easy. His front door had a stupid passcode lock AND a key lock. 

 

He fished the keys out of Todoroki’s pocket but he couldn’t get the other man to tell him the passcode. 

 

“Come on half n half, what’s the damn code?” 

 

“Code? Code for what? Code word. Code name.” 

 

“Todoroki! The code to your house” he practically yelled at him. 

 

“Huh? My house? I like my house. I got it for a great price. It cost-“ 

 

“Shoto! Look at me,” he grabbed his face forcing the other man to stare into his very annoyed red eyes “what. Is. Your. Door. Code.” 

 

“Door code? My door code? Oh. It’s 333. Shoto! You called me Shoto. We really are besties!” 

 

He rolled his eyes but typed in the numbers after he turned the key. Although it was a hassle he admired the level of security. It would be hard for a villain to break into this place. Carrying the man again, he managed to get him to his bedroom. He didn’t appear to have a second set of keys but they’d figure that out later. He wasn’t in any condition to lock the door once Bakugo left like Ashido was. 

 

He left out with the keys and locked the door behind him. Getting back into the taxi it was just him and Deku now. Giving the final instructions to Deku’s apartment, he sighed. He really hated taking care of intoxicated people. 

 

Like usual, he got him into bed with the other things ready. Water, fresh trash bag, hangover medicine. Tv on with subtitles. He debated on whether or not to leave but he decided to stay. 

.

.

.

 

Walking into the office the next morning they were greeted by Ashido and Todoroki who both looked rough. Deku handed them the drinks they picked up, tea for Todoroki. Coffee for Ashido. 

 

“Thank you Bakugo, you’re so sweet.” Ashido sipped her coffee slowly. Her voice was scratchy from all the excitement the night before. 

 

“I apologize for any behavior after I got drunk.” Todoroki looked embarrassed, which was unusual for him. 

 

“Next time I’m not taking care of any of you idiots. Don’t get so shitfaced” He snapped but none of them seemed to take him seriously. 

 

Before he could take a seat at the desk a loud commotion got all of their attention. It seemed to be just down the hall and getting closer. The previously calm atmosphere in the room turned defensive instantly. Nobody had activated their quirks yet but everybody was ready. 

 

A girl in a school uniform flew into the room, literally. She was hovering over the ground. She was followed by Sato, Ayoama, and Kaminari who were apparently trying to stop her based on the argument happening. 

 

“You airheads can’t stop a middle schooler?” He shouted at them. 

 

“I am a high schooler! AND NOTHING CAN STOP MY LOVE FOR RED RIOT!” The girl shouted, tackling Kirishima to the ground. 

 

He had to be caught off guard because he toppled to the ground instantly. Normally nobody could knock him down, especially with his quirk but he hadn’t activated it. Everything after that was a flurry of commotion. 

 

Kaminari tried to use electricity on the girl for what he claimed would be a light shock. He ended up zapping both her and Kirishima who was yelling at him to stop. Sato tried to grab the girl off of Kirishima but the girl made them fly out of his reach. She still had her arms firmly wrapped around the redhead. 

 

Ayoma tried to blast them but Iida managed to stop him before he did any damage. Ashido and Deku were suddenly missing but Bakugo figured out why when they reappeared with Uraraka with them. As soon as she saw the scene she screamed “Let go of my boyfriend!” 

 

“I’m your boyfriend?” Kirishima asked looking like he was on top of the world instead of in the arms of a crazy fan. 

 

“You have a girlfriend? HOW DARE YOU CHEAT ON ME.” The girl screamed. 

 

Bakugo decided that was his cue to leave. This was the kind of situation extras handled. He was happy for Kirishima though. 

 

Despite the craziness, the incident resulted in Uraraka and Kirishima making things official. Now all he had to do was tell her they were actually soulmates. 

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