Fighting Off Instinct

by BriRy18

Based off of the BakuDeku Doujinshi "Antinomie" and "Hakuri" by Hokosin Cai. Since the discovery of the secondary hormone known as the "Dom/Sub Dynamics" all High School students require a physical exam in order to determine their second Gender. Before stepping out into the world as pro heroes, both Bakugo and Izuku are shocked by the results of their tests. (DOM DEKU)

5. Convicted

Fighting Off Instinct

Chapter 5: Convicted

Sex with Deku was always a win/lose battle for Bakugou; a constant three-way tug-of-war between his body's needs, his stubborn pride, and his uneasy heart. He could remember the very first time he and Deku had sex. The experience had been incredibly exhilarating and completely overwhelming. Neither of them really knew what they were doing, but between Deku's patience, and his tenacity, they somehow made it work. The feel of Deku inside him, the scent of his sweat and sex stirring his instincts, and the look in his eyes when he had him completely spellbound from heat… was addicting.

For the longest time he'd pushed Deku away because of his own insecurities. He'd always been told by everyone around him that he would become a powerful Dom, and he'd projected that image everyone expected from him. Deku tarnished that image by doing what he did best… exceeding his limitations, and growing stronger and smarter with every fight and experience life threw at him

There was always this sense of anticipation… an anxiousness Bakugou had never been able to shake. It was as if somewhere deep down he always knew that one day Deku would overpower him, one way or another. Even when they were kids he could always feel Deku's eyes on him… piercing through as if they could look through his soul. It unnerved him, and broke through the image he'd worked so hard to portray.

Once the reality of it had come into play, Bakugou still refused to believe it. He didn't want to be a sub, he didn't want to submit to his instincts and bend the knee to anyone beneath one could be above…

… no one, but Deku.

The buzzing of his cell phone made him stir from under Deku's dead weight. The guy was sure a heavy sleeper. His phone had been going off like crazy all night, but the two of them had been too distracted to give it much thought.

Now that the heat had died and his body and brain begged for more sleep… it was just an infuriating annoyance.

"Get off, Deku, and answer yer damn phone." He grunted, trying to shift but Izuku only rolled onto his side, his arms still tucked protectively around him. "Stupid ugly green koala…"

Now his own phone began to buzz and Bakugou tossed his eyes up to the ceiling. If both his and Deku's phones were going off it was more than likely hero work. He was gonna have a hell of a time getting up after the reaming he'd gone through.

Reaching out, he slapped his palm on the vibrating phone and pulled it into eye view. The name on the display made him grimace.

"Ugh, what the fuck do you want Fabric Mouth?" He grumbled at the read out and slowly sat up, shoving Izuku off him and tossing his phone onto his face. "Answer your fucking messages, you damn nerd. Your phone's been blowing up all night."

"Ow! Kacchan! Was that really necessary?" He rubbed his nose and peered at the missed calls and messages on his phone. "GEH! That's a lot of missed calls… Miss Hart sure is persistent."

"Yeah well it was your own damn fault for not being firm with her after your little tangle on the dance floor." Bakugou scowled at his phone as it stopped ringing before he could answer it. Deku's phone wasn't the only one that had blown up while they were having sex. Best Jeanist had called them several times during the first hour, and then again after they'd gone catatonic.

"I guess you're right, but I didn't want to be too assertive…" Deku frowned, his face going blue as he scrolled through the list of messages. "She seems really upset, maybe I should-"

"Enough about the harlot, now Hush!" Bakugou answered as his phone started to ring again. "Hello?"

"Dynamight… where is Deku?" Straight to the point, Best Jeanist spoke calmly to the irrational Bakugou.

"He's sleeping, the fuck is the problem?" He rubbed the sleep out of his eyes and glanced over at the clock. "Its fucking 4am and we were up half the night working."

"I"ve been trying to get a hold of you for hours so you could brief me on what happened. Neither of you returned to the office or the apartment. Where did you go after the party?" He asked more firmly, showing small signs of irritance.

"We stayed the night at the hotel to get some more info." Knowing he wasn't gonna get anymore sleep, Bakugou slowly got up and snagged his boxers from the floor. "We had an opportunity to keep under our perp's nose so we took it. Problem?"

"You can't just make a spur of the moment decision like that. Did you forget that Deku is still a main suspect? If they find evidence that ties him to another subdrop…"

The scream that ripped from the hallway cut the conversation short. Both heroes were up and decent in a flash. Bakugou ripped the door open, his muscle shirt not doing much to hide the hickeys and teeth marks along his neck and shoulder but he had more pressing matters to see to.

"The fuck is going on?" He saw the maid on her knees sobbing and shaking. Izuku immediately went to her, using his soothing touch and pheromones to calm her down.

"She's dead… she's dead…" the maid sobbed with horror in her eyes. "Miss Hart is dead!"

All of the color drained from Izuku's face as he turned his head inward to the room and saw Katherine Hart sprawled out on the floor in her fancy robes and her body frozen in a look of pure agony, and her hand clutching her phone.

"Call 911…" He told the maid and started to take a step towards Katherine but Bakugou yanked him back.

"Don't go in there, you idiot! You'll contaminate the evidence. We need to wait for forensics." He shoved him back, but Izuku stood firm,

"They won't need any forensic evidence, Kacchan." Izuku lowered his head, holding his own phone to his chest. "It's a sub drop, and it's my fault because I didn't properly end the play between us after the dance. I pushed her away, and ignored her because I was worried about you."

"Like hell! This isn't our fault, Deku. The party was crawling with other DOMs, someone else could have-"

"She sent me texts, kacchan!" Izuku held out his phone. "There's your evidence! She kept trying to call me, or text me, asking me to come to her, telling me how lonely she was, and I just ignored her!"

"Idiot that's not-" Bakugou started to argue but the elevator door opened. His eyes flared red like hot steel as Kameda, and a small police squad entered the hallway. "Damn it, we've been had."

"Kacchan?" Deku started to question but then looked up at those that walked up to the scene. His eyes went hard as well and he got to his feet. "Mr. Kamada... "

"I warned you, Hero Deku, that Miss Hart was in a fragile state after your encounter last night. I know you're still becoming accustomed to having such a strong dynamic, but you must take responsibility for what you've done."

"I can't disagree that I do feel partially responsible." Deku gripped Bakugou's shoulder as he started to argue. "However, I feel that there is more than just neglect here. Miss Hart was a strong minded woman even for a sub. She wouldn't just give up and give in because I neglected to respond to her text messages."

"Hero Deku is right," The detective who was in charge of the case knelt beside the body. "There's clear evidence of abuse and sexual activity in this room."

"I was with Deku all night, with all the bite marks and hickeys to prove it." Unashamed of his "battle scars" Bakugou lifted his chin, and shirt showing them all off. The intense look in his eyes dared Kameda to prove him wrong.

"All night? Are you so sure about that?" Kameda glanced at Deku who met his eyes, the two Dom's squaring each other up, creating great tension in the hallway. The weaker willed subs started to shake under the intensity.

"I may be a Dom, Mr. Kameda…" Deku lifted his chin, his fist clenched at his side. "... but I do not abuse my last thing I would ever want to do is to hurt someone with my dynamics."

"I'm glad to hear it, Hero Deku. You are a shining beacon after all… the rising hero star that's destined to take All Might's place. It would be a damn shame if that reputation of yours was tarnished in any way." Kameda strolled to the door, peering inside. He gave a sound of mock grief and sympathy. "Such a beautiful and vivacious woman, cut down in her prime. Whoever is responsible must be stopped. You'll see to that won't you, Deku?"

"Yes…" A surge of power built up inside Izuku, causing his glare to heighten. The nearby subs, including Bakugou, had to take retreating steps back in order not to be affected by it. "I owe her that much."

"Deku.." Bakugou's call cut through the haze of anger. He risked stepping closer to his lover and gripped his shoulder. "The police have got this covered for now. Let's meet up with Jean face and give him a briefing."

"Right." Izuku let himself relax for a moment. "If you'll please excuse us, Mr. Kameda. We've got work to do."

"Of course. I'll be sure to inform the police if I or my staff come up with anything of use to the case."

Neither hero responded. Instead they returned to their rooms to dress and check out. Bakugou was on edge, not just because Izuku's glare was sputtering out in occasional bursts of anger, but because the two of them had walked so easily into the trap. They'd both been blinded by their instincts, choosing to satisfy them rather than focus on the case.

"Maybe us working together is a bad idea after all." Bakugou murmured as he adjusted his glove. "We're distracting each other… just like before."

"Did you say something, Kacchan?" Izuku looked up from fastening his belt.

"No, I just picked up your bad habit of muttering to myself." He picked up Izuku's gloves and shoved them in his face. "Hurry up and finish getting dressed. We've got a lot of explaining to do, and the press are gonna be on us like flies to honey."

"You're right… I didn't even think about the press. I'm not sure what to tell them or how to even explain the situation." Izuku rubbed his lip. "We're supposed to be keeping the fact you're a sub a secret from the public, but you're my only alibi."

"The press doesn't need to know our personal business. The only reason I told the police is because Kameda was there, and I'm determined to keep up appearances. I'm not letting that scum walk away from this. We'll continue the plan as before, using me as bait. Which means I need you focused, Deku."

"I don't know, Kacchan. I've never felt good about this plan, and especially now that someone has died."

"Look, Deku!" Bakugou paused his walk and turned to him. He grabbed Izuku by the cheeks, squeezing them tightly. "We made a deal, right? You need to trust me to do my part or we're dead in the water. Kameda has all the resources to brush this whole thing off. The attack was done in his hotel, after attending his party. Which means any forensic evidence they find of him in that room or on that reporter is deniable. We have nothing concrete, nothing tying him to the victim to the time, or motive for this. Our best, and only option is to get him to either confess, or we witness his crimes."

"I guess you do have a point…" Deku lowered his head, and clenched his fists. "Alright, we'll stick to the plan. Just please be careful Kacchan." He slowly lifted his gaze back up to look into his partner's eyes. "I lost control with you once and it nearly cost us both our lives. So don't do anything reckless or unnecessary."

So… Bakugou thought as he admired the fearful look in his lover's eyes… he wasn't the only one who thought about that day. Good. Now that he knew a little more was Izuku was thinking, the easier it would be to get him to do what he wanted.

"Would you quit looking down on me, you insufferable worrywart?" Bakugou snagged him by the hair and pulled him along. "Besides, you're the reckless one, remember? If anyone is gonna do something stupid, it's gonna be you!"

"Ow, ow, ow! Lay off, Kacchan! That hurts!"

"Make me, you half-assed Dom!"

"Oh come on, don't make me use my glare right now, especially when there's a lot of other people around." Izuku gripped him by the wrist and pried him off. He rubbed the sore spot on his scalp, scowling. "Geez."

"Heh, loser." Bakugou smirked. "Serves yah right."

Izuku had a moment to think that it would serve Bakugou right if he punished him right there in the elevator… but after the events of last night he held off, and kept quiet the rest of the way down to the lobby. He checked them out of the hotel room, and they reconvened at Best Jeanist's office in order to figure out how to handle the lingering press, and perilous situation.

"Are you certain you want to continue with this plan, Dynamight?" Jeanist questioned. "The peril on your end just got all the more real."

"Relax, Jean Face, I'll be fine so long as I've got this loser." He jerked a thumb at Deku. "Even if Kameda manages to somehow break my defenses, he can bring me out of any drop phase."

"Then I implore you to stay close to each other… this whole "Framing Deku" scenario is looking more and more troublesome. Had Bakugou not been there to act as your alibi you most certainly would have taken full blame for the subdrop."

"I know, and honestly it freaked me out for a bit. Even if I wasn't wholly responsible, it was my dynamics that triggered her submissive behavior. Someone took advantage of her vulnerable state, but I'm the one who put her there in the first place. It's unsettling to say the least."

"There will most certainly be a backlash for your involvement, but the party was the first time the two of you had met, and there's no evidence that you and Miss Hart had a long term relationship. On top of all that there were hundreds of witnesses at the party who saw you dancing with other guests and not just Miss Hart. There's no sign of a motive, nor should there be any physical evidence of you in her room. So long as we address the issue appropriately, sympathetically, and responsibly, then you'll be fine."

"So then what's our story?" Bakugou crossed his arms and leaned back on the wall. "We can't exactly tell the press that we were there on a mission. It'll blow our cover."

"Well the easiest solution would be for the two of you to come out with your relationship." Jeanist decided.

"Just how the hell do you figure that? Outsiders don't need to know our personal business!" Bakugou sneered.

"No, but the whole purpose of going to one of Kameda's parties is to enjoy its pleasures. If you announced that the two of you went there as a date in order to satisfy each other's instincts it would explain why you were there together, why you left together, and why you roomed together. That is the story you gave Kameda after all."

"You do have a point…" Izuku held his mouth murmuring a bit to himself before addressing them again. "Still… I agree with Kacchan. If it's not necessary to reveal our relationship, then we shouldn't do it. If Kacchan is revealed to be a sub then he'll just have a much bigger target on his back for dominant villains. It'll put him at great risk."

"Tch! Bring it on! I ain't scared of villains and their puny ass glares." Bakugou grunted pushing off of the wall. "The only reason I've been hiding it, is because I've got a reputation to protect. I won't have my fans losing faith that I can't do my job just because I'm a fucking sub."

"Very well… our second option is to emphasize your friendship with each other. Delve into the childhood friend's story. The two of you are living together, working together, and the two of you went to the party together in pursuit of possible playmates, but found no one to our liking. Furthermore we can say Miss Hart had been coming on a little too strong, and Bakugou interceded and gave you an excuse to leave the party early by playing ill."

"I don't know, that really puts a bad light on Miss Hart and I don't feel good about speaking ill of the dead. Furthermore she was victimized because I was unable to keep my glare in check. I don't think the public will look fondly on me if I try to brush it off." Izuku clenched his fists. "No… I need to own up to my mistake, and fully explain the situation. I'll tell them I was pursued by Miss Hart and encouraged by Kameda to seal the deal, but chose to look after Kacchan instead since he wasn't feeling well. I chose to help a friend rather than to help myself. In a way, that's as close to the truth as we can get without disclosing our relationship."

"I agree, that's an excellent idea, Deku. Once the police have completed analyzing the forensic evidence the two of you will face the public together alongside Kameda at the press conference." Best Jeanist walked to Bakugou and tapped the small hickey exposed on his neck. "Might I suggest you break out your suit rather than your hero gear to better hide these marks?"

"Don't tell me what to do, jean face." Bakugo brushed his hand away. He turned to Deku. "Come on, Nerd. Let's go home and eat. I'm fucking starving."

"Yeah, okay. Thanks for your guidance, Best Jeanist." Izuku bowed respectively and followed Bakugou out. Just as they left Jeanist's cell phone rang and he answered it.

"Hello?"

"Jeanist… It's Tsukauchi. I'm afraid we've got a big problem concerning the Hart case."

"Oh? What's the problem?"

"The forensic team has finished analyzing the evidence and… I'm sorry Jeanist but… we're gonna have to bring Deku in for questioning."

"What?!" Jeanist clenched his fists. "Why? What did you find?"

~20 minutes Later: Police Station interrogation room~

"You found my DNA at the crime scene?" Izuku pointed to himself, going pale with disbelief. "That can't be right, that's impossible. I wasn't anywhere near that room until after Miss Hart was found dead. Ka- I mean Dynamight can vouch for me. We were together the whole night!"

"Forensic evidence suggests otherwise…" The police detective pushed the hair samples forward. "Saliva, hair, and skin was found on the body."

"That shit doesn't prove anything!" Bakugou slammed his fist down. "That tramp was hanging all over her at the party. Those samples could have been from when they were up against each other on the dance floor."

"There is also video evidence showing you leaving your room, at roughly 2am and going to her hotel room. We even have a witness who saw you leaving her room approximately one hour later, which fits into the time of death."

"Again, I call BULL SHIT!" Bakugou jerked upright from the table, knocking his chair down. "I was with Deku the whole night! I would have known if he'd left!" He held his chest. "Believe me, I would have known!"

"Kacchan, calm down. You getting upset is not gonna help matters." Izuku righted Bakugou's chair and ushered him back down. Bakugous slapped his hands away, shaking with anger.

"Kameda must have tampered with the tapes. He's the one who did this, not Deku! You can't pin this on Deku!"

"I'm sorry, Dynamight, but there's no concrete evidence that proves Kameda has anything to do with this. Video surveillance and witnesses have him at the party until way into the morning until hotel security and police alerted him of the tragedy. We know that you and Mr. Deku are actually paired partners… and it's quite possible Deku is manipulating you choices, and thus your testament is contestable."

"Bullshit! Bullshit, BULLSHIT!" Bakugou jerked back up to his feet. "Deku didn't do it! That's not instinct talking, that's just fact! You've got the wrong guy!"

"I'm sorry, Mr Bakugou, but until more concrete evidence comes into play and proves his innocence, the hero Deku will have to be put into police custody, and taken to prison where he will await trial."

"No! You can't take him." Bakugou stood in front of him. "Just give us time! We know Kameda is the real culprit is, but we need time to-"

"Kacchan…" Izuku lay a hand on his shoulder. "It's okay"

"No it's not!" Bakugou shrugged him off. "Forget about the case for just a second and think of what will happen if it's televised that you're involved in all this! Your reputation-"

"Doesn't mean anything." Izuku lifted his head, his eyes showing grief, but his lips still smiled. "It doesn't matter what others think of me. I'll always be a hero. Nothing can change that. Besides, you still have time to prove that I didn't do it. " Izuku turned his lover's body completely towards him. "I know you, Kacchan. You can take care of Kameda all by yourself."

"Damn right I can, but that doesn't mean I want to!" Bakugou snagged Izuku's wrists. "If you're not there-"

"You'll be fine, Kacchan." Izuku pulled him into a hug and whispered into his ear. "You told me to trust you, and I am. You can do this. I have faith in you."

Bakugou, torn between his pride and his instincts, bowed his head to lay it on Deku's shoulder. He gave him a solid punch in the gut, gritting his teeth.

"Fine then… guess it's up to me to clean up after you once again."

"Yeah," Izuku smiled and pulled back to look him in the eye. Something in them changed, the soft and affectionate look shifting to that of intense focus. "STAY ALIVE."

The command came across loud and clear, and caused Bakugou's skin to prickle. Something about that command triggered something inside him… and he remembered too much.

~Flashback~

"Kacchan! Kacchan, get up! Stay with me!" Izuku snagged Bakugou as he went limp in his arms. The command Deku had unleashed having affected all of the villains submissive followers, but had also affected Bakugou. "Oh god, what have I done!?"

"Ha! So this is the number one rookie, Dynamight? How pathetic!" The destructive villain stood over a rubbled structure, looking down at the two heroes who were both bleeding. Dynamight was on his knees, struggling to breathe as he looked up at Deku with eyes that were half blinded.

"Deku… I can't… move."

"I'm sorry, I'm so sorry I didn't know!" Izuku's eyes were full of panic as he quickly pulled Bakugou up to avoid the villain's next attack. "I didn't know you were a sub! Oh god, it's all my fault! Stay with me! Please don't die!"

"DIE HEROES!" The villain suddenly appeared before them, knocking them both down. Izuku lost grip on Kacchan, the sub powerless as the villain hoisted him up by the front of his costume. Izuku felt his instincts kick into high gear, and his pupils practically disappeared as his quirk surged up."

"NO! DON'T YOU HURT HIM!" Izuku rushed the villain knocking him over and he caught Bakugou. When the villain unleashed his next attack, Deku turned his back taking the full force of it himself in order to shield Bakugou.

"Deku…you damn nerd… you could have dodged that. Why didn't you-"

"My body is acting all on it's own." He coughed up blood, holding him tighter to him. "I can't… bring myself to let go. I can never seem to just let you go." Izuku bowed his head crying into his shoulder. "Kacchan… I need you to listen to me. I don't think I'm ever gonna get the chance to say this to you again, so please, LOOK at me, and LISTEN."

Bakugou grunted as the command focused his senses solely on Deku. He saw the light in his vivid green eyes, could hear the raggedness of his breath as the wounds he'd sustained made it harder for him to breathe.

… and then he smiled and stroked his hair.

"I love you, Kacchan."

"Deku…" the words made it both easier for him to breathe… and harder for him to move. He felt as if the noose that had been around his neck, now tied around his heart and forced him closer.

"My life has always centered around you, Kacchan. I would never forgive myself if I lost you. So do me a favor…" Izuku kissed him gently, surprising them both at how right it felt. He lay him down gently on the ground, and stood up tall over him, looking down. "... and STAY ALIVE."

Bakugou watched as Izuku turned his back to him and walked away. He had never felt more helpless than having to just sit there, and watch as his childhood friend, rival, and the only Dom to ever awaken his instincts, rush head first in what should have been certain death.

~End of Flashback~

"No… wait a minute…" Panic started to bubble up and his confident exterior began to falter as Izuku was cuffed and escorted out of interrogation. " You can't just give me a command like that and leave me like this! The fuck are you thinking, Deku?" Panic and regret bubbled in his throat as he tried to push past the guards to go after his lover. "Rescind it! Don't leave it like this! Don't leave me! DEKU!"

Bakugou fell to his knees and slammed his fists over and over onto the tile floor as he watched his partner, his lover, and one true Dom, disappear behind a bolted door.

"IZUKU!"

~Ask briry~

Bri: I'm SORRY! I kept you all waiting so long! I swear I don't mean to. I'll keep trying to get these chapters out faster. All I ask is that you don't give up on me!

Next Chapter: Baited Trap