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That is not my husband.
Bakugou had been unable to shake the thought from his head for days. The man living in his house, eating his cooking, and sleeping beside him is not the man he married three years ago.
Bakugou and Midoriya had a strained friendship, to put it lightly. They had met in childhood at their local park and decided to be the best of friends. But then things changed; Bakugou had some trouble at home, and the only way he could release his frustrations was by picking on the small nerdy Midoriya. So he continued to bully his childhood best friend. Bakugou looked back on this time in his life with a great amount of shame. Especially with the way he acted in middle school.
At the end of their 9th grade, Katsuki moved. He was too angry and self-centered to even think of saying goodbye to Midoriya. So he didn't.
In his first year of high school things slowly began to change. He was confronted about his bad attitude and shitty actions. Bakugou did a lot of self-reflecting that year. Then he started his journey of reinvention. He joined the cooking club and kendo club, and eventually convinced his dad that he needed therapy. It was all starting to look up for the bratty blonde.
When Bakugou started college, he was excited; he had worked so hard to get there, after all. Then the past caught up to him in the form of one Izuku Midoriya. When Bakugou saw him, he almost couldn't believe it. He avoided his ex-childhood friend for the next month. Guilt ate at him daily. He wanted to apologize to Midoriya, but he was so ashamed of his past that he didn't know where to start or if he even could. But he didn't have to worry about making the first move; Midoriya did.
The green-haired nerd had grown since they last saw each other. He was now several inches taller than Bakugou and definitely bulkier. He told the blonde that he wanted to be his friend again, and Bakugou agreed. Three months into their tentative friendship, Bakugou broke down and apologized for everything he'd done. Midoriya held him close and promised it was all in the past, that he forgave Bakugou. “What matters is now, “ he had said.
That was the start of their true friendship — and eventual relationship. Bakugou had been over the moon when Midoriya asked him out. For the first few months, he felt like he was on cloud nine. Then they had their first fight. It started benign — Bakugou had been late in getting home from a hang-out with his friends. He had simply lost track of the time. Midoriya was angry, saying he should have called to let him know. Bakugou admitted that he should have but Midoriya accused him of prioritizing his friends over his boyfriend. Soon they were yelling at each other and Midoriya said it, the thing that broke Bakugou’s heart: “You haven’t changed at all, have you?” It tore at Bakugou’s confidence; he was doing so much better, wasn’t he?
In the morning, Midoriya apologized to Bakugou. He was in a bad mood and said things he didn’t mean. Bakugou forgave him, of course he did. After Midoriya was nice enough to give Bakugou another chance, it was the least he could do.
A year later they were married.
It was a small wedding, mostly consisting of Izuku's friends. But Katsuki was just happy to be married to the man he loved. He didn't talk to his friends much anymore but he was too busy with work anyway. Any free time he had went to Izuku or taking care of the house. He was happy, content.
Then tragedy struck. A year and a half into their marriage Izuku's mother, Inko, passed away. It was sudden and unexpected. Izuku never seemed the same after, and things steadily got worse at home.
Katsuki was hoping things would change. Once Izuku got a job and stopped visiting the bar as much, they could become close again. A month ago Katsuki was thinking these same thoughts when he began to feel eyes watching him. He remembered when it started: the day before he had rescued a small green garden snake from the woods close to their house. It had been stuck in a ditch and obviously in danger of drowning if it were to rain. Izuku always thought small animals like that were annoying, which is why they never had any despite Katsuki’s pleading. That’s what Katsuki thought it was when he first started feeling eyes on him — an animal.
He often liked to take walks in the small forest close to their home when Izuku allowed it. On one of those walks, Katsuki felt his hair stand on end. It was like every swirl of bark was an eye staring directly at him. At any moment he was afraid he would turn and find someone at his back. His pace changed from a gentle walk to a frantic run the closer he got to his home. Once indoors, he took in gasping breaths. He was safe inside, even if the thing outside never stopped looking.
Katsuki tried to brush off the feeling. He was probably paranoid; all the stress at work must have made him especially anxious. But every time he left the house, he felt it; the unwanted presence of a force looking at him without him being able to look back.
“I just feel like something is watching over me.” Katsuki stood a few feet away from Izuku who was lounging on the coach.
“Huh? Like what, a spooky ghost?” His husband chuckled to himself.
Blonde eyebrows scrunched up, “No, like a person, or persons? I thought maybe it was an animal, but I don’t know.” Katsuki sighed, “I’m scared.”
Izuku finally turned to face him, “There’s no one watching you. I haven’t noticed anything.”
“I know but-”
“What would you even want me to do? Be your bodyguard? Call the police and tell them my husband thinks someone is stalking him? C’mon, this is ridiculous.” He shook his head and turned back to the TV.
Katsuki felt his blood boil, “Izuku, listen to me!” He snatched the remote off the coffee table and flipped the TV off. “You always do this. Can’t I get a little fucking support?”
Izuku shot up from the couch. His large form loomed over Katsuki, his broad shoulders and weight a reminder of the power he had over his husband. “Support for what? You acting like a crazy person? I knew you would turn into your mother one day.”
“Why would you say that?” Katsuki’s heart plummeted, weighing down his movements and causing his eyes to tear up. “I’m glad your mom isn’t here to see you now.” He knew the words would sting, but some part of Katsuki wanted it to. The consequences of his statement were felt a second later when he found himself on the ground with an already throbbing cheek.
“Don’t you ever,” Izuku got down, close enough to Katsuki’s face that he could smell their dinner on his breath, “Ever bring up my mother again!” Green eyes filled with hate bore down into Katsuki. He could see Izuku's fists shaking with anger.
Izuku stormed out of the room. All Katsuki could hear was the thunderous boom of each step and the sound of glass breaking. The house shook as the front door was slammed. Katsuki sat there trying to catch his breath. When he finally did, he slowly got up to clean up the glass left on the floor. A picture from their wedding day laid on the ground, its funeral bed a collection of glass. Katsuki sighed and grabbed the dustpan; he needed to clean up before Izuku came back.
It had been three days since Izuku stormed out. Katsuki hadn’t been concerned when Izuku wasn’t there the next morning. He often left like that and wouldn’t return until the late afternoon. But on the second day, he grew concerned. When Izuku still wasn’t there after returning home from work, Katsuki decided to call some of the local bars his husband often frequented. Each one said they hadn’t seen him. That was when he thought to contact the police, but he remembered how angry Izuku had been the only time he had contacted them previously. Maybe he could wait one more day.
Katsuki was already in bed when he heard the front door creak open. It was late into the third day of Izuku’s disappearance. He was planning on waking up early and heading to the police station, but his sleep was disturbed by movement in his house. He froze in bed. Was this Izuku? Had he finally come home? Or was this some stranger breaking in to steal everything not nailed down?
Katsuki had no time to think as the door to the bedroom burst open. He snapped his eyes shut without thinking. If he pretended to be asleep, maybe whoever was here would leave him alone. Izuku could still be mad after all.
Heavy footsteps walked around the bed to Katsuki’s side. There was a pause. Katsuki tried to count his breath to calm down, but lost track at twenty-six. He felt the warmth of a large hand cup his cheek, and he flinched back. Katsuki’s eyes shot open. They tried to adjust to the darkness and the sliver of light that snuck past the slightly open door. After several rounds of blinking, Katsuki could finally see the form in front of him. It was Izuku.
“Izuku? What are you doing?” Katsuki sat up in bed.
His husband didn’t answer, not right away. Instead, he looked at Katsuki, eyes sweeping over every inch of him. His hand reached out again and subconsciously Katsuki flinched back. The hand slowed its movements but didn’t stop and soon, big scarred fingers were cupping Katsuki’s pale cheek.
“Sorry. I got home late.”
“Late? Izuku, it's been three days since you stormed out. Where have you been?”
Another pause. “I went for a walk.”
Katsuki felt like he was still asleep. Looking over Izuku, he saw that he was still wearing the same clothes he had on the day he left. His brows furrowed, “A walk?”
Izuku nodded.
“Ok…we can talk later, I’m tired.”
He pulled away from Izuku’s hand and laid back onto the mattress where he curled further into the blankets, hoping his husband got the message that this conversation was over.
Izuku went to the other side of the bed and crawled in. He slowly moved until his chest was pressed into Katsuki’s back. Katsuki cringed at the feeling of jeans touching his legs. Had Izuku not even gotten out of his clothes? He didn’t smell like alcohol, but that didn’t mean he was sober. Izuku didn’t cuddle often with Katsuki. It was a point of contention in the early days of their relationship. Katsuki craved physical affection, but Izuku seemed completely disinterested in it. Now, that same man slowly snaked his arms around Katsuki’s torso, holding him close. He debated pushing Izuku away, but he was too tired and he didn’t want to start another fight. Instead, he closed his eyes and prayed that Izuku would be back to normal in the morning.
It had been a week since Izuku returned, and each day Katsuki was more convinced that the man in his home was not his husband. Izuku hadn’t blown up at him once, and he hadn’t gone to the bar at all. Most of his time he spent just looking at Katsuki and asking him random questions. What’s your favorite color? Your favorite food? Do you prefer cold or hot weather?
Izuku never cared to remember a bunch of “nonsense,” as he used to call it. Why was he so interested in it now? Even weirder, Katsuki stopped feeling that odd presence that followed him. When he went outside, there was nothing now. He felt like he was going crazy.
“You look stressed. I think you should work fewer hours.”
Katsuki turned to Izuku, “That sounds great but I need all the hours I can get. We’re barely surviving as is.”
Izuku nodded but didn’t say anything else.
The next day, Izuku threw a bundle of cash onto the table in front of Katsuki. There must have been at least 450,000 yen stacked neatly together.
“I think twenty hours a week sounds good.” He smiled down at Katsuki who lost all ability to speak.
That's how their new routine started. Katsuki only worked five hours a day for four days of the week. Every other hour was spent with Izuku. It was an odd adjustment, but not a totally unwelcome one. Katsuki had no idea where Izuku got the money though. He was too afraid to ask.
On a Friday afternoon Katsuki was scrolling on his phone. Izuku was currently cleaning the kitchen. That was another new addition. Izuku did all the cleaning now. Katsuki had tried to rinse the dishes two days ago, and Izuku rushed to his side, saying his beautiful hands shouldn’t be touching such filthy water. Katsuki ended up sitting on the couch, stunned.
As Katsuki scrolled, he noticed a familiar name. Eijirou Kirishima, his old friend from high school. He hadn’t talked to him since the wedding. Nostalgia filled him, and a longing to see someone who he was once so close to.
“Something on your mind, Darling?” Izuku walked into the room, a smile on his face.
“Oh uh, just saw a friend’s profile. Made me a little wistful, I guess.” Katsuki didn’t want to mention Kirishima’s name. Izuku always had this weird jealousy towards him.
“Was it Kirishima?”
Katsuki’s head snapped up at Izuku’s words. How did he know?
“...Yeah, it was.”
“Do you want to go see him? Our weekend is free, you can go to lunch with him on Saturday.” Izuku kept his smile as he looked down at Katsuki, who was still on the couch.
This was a trick, right? Izuku hated Kirishima, it was the reason they drifted apart all those years ago. If this Izuku wasn’t some doppelganger, he must have hit his head during his “walk.” There was no other way he would be suggesting this.
“Are you in love with Kirishima?”
“What?! No!” Katsuki answered immediately, “Kirishima is more like a brother to me than anything else.”
Izuku got down on his knees and nestled in between Katsuki’s legs. He looked up with dilated pupils and a lovestruck smile on his face. Large hands cupped Katsuki's cheeks, thumbs tracing under his eyes.
“Of course not. I’m sorry for asking. You’re such a wonderful partner, you wouldn’t even think of something as disgusting as cheating. Even if you did, it would be me who is at fault. My darling,” he leaned forward, wrapping his arms around Katsuki’s torso, “My beautiful, perfect Kacchan.”
Katsuki was left speechless, frozen in his seat like a statue. He wasn’t sure how to react. All he could think to do was place his hand on Izuku’s head and run his fingers through his wild curls.
The lunch with Kirishima went great. Katsuki truly missed having friends like this. They caught each other up on their lives and reminisced about their time together as friends. Katsuki had such a great time that he ended up coming home late. He mentally cursed himself as he opened the door. Despite sending a text letting him know he would be late, Katsuki knew Izuku would never let him go out again with Kirishima now. When he opened the door, Izuku was standing at the entrance.
“Thank goodness you’re home safe!” Izuku pulled him into a tight hug. “You sent that text, but I was still worried. This world is so cruel, especially to beautiful things like my Kacchan.” He kissed blonde locks as his hands ran up and down Katsuki’s back.
“Yeah, of course I’m fine,” Katsuki hesitantly returned the hug.
“Did you have fun? Kirishima wasn’t mean, was he?” Izuku pulled away from Katsuki. As he spoke, his voice got darker, like it was holding back a beast.
“No! No, Kirishima was great. He asked how you were.”
“Oh really?” That darkness in his voice was gone.
“Yeah, I said you were doing good.”
“I'm doing great because I have you.” Izuku leaned down and captured Katsuki's lips in a kiss. “How about after dinner we go get some ice cream for dessert?”
“Uh, sure.” Katsuki stared at Izuku as he disappeared down the hall. He was starting to lose the very last sliver of hope that the person living with him was his husband.
The duo were walking home, ice cream in hand, with Izuku chatting away. It was later in the day, so not many people were out. Katsuki wasn’t paying attention to where he was going, too focused on listening to Izuku ramble. Pain blossomed in his shoulder, and his arm flung out. His ice cream fell to the ground as he turned to the man who bumped into him.
“Watch where you’re going, idiot.” The man sneered at Katsuki and attempted to keep walking.
An arm shot out and grabbed him by the neck. Izuku’s muscles bulged in his arm as he lifted the man off the ground.
“What did you say?” His grip tightened. The man's face started to turn red. “How dare you call my Kacchan an idiot. You should be thankful to even be on the same planet as him. I should kill you just for looking at him wrong.”
“Izuku!” Katsuki grabbed his arm and tried to pull it off the man. The stranger's eyes widened as air refused to enter his lungs, and he clawed at Izuku's hand. “It's ok, I wasn't paying attention! He's just a jerk, he’s not worth it.”
Green eyes turned to Katsuki. His glare could make the devil cower, but his expression softened when looking into ruby eyes. The man dropped to the ground as Izuku let go of him. He hacked up wet coughs from his abused lungs.
“What the fuck! You're a freak!” He said between wheezes.
Izuku leaned down mere inches away from the man. “My husband spared you because he is so kind. Now leave before the greatest mercy I could give you is death.”
The stranger scrambled off the ground and ran down the street. Izuku turned to Katsuki once he was out of view.
“Are you ok, my Sweetheart?” He brushed his hand against Katsuki's cheek. “He didn't hurt you, did he?”
Katsuki looked at the hand on his cheek and then the eyes piercing into him. “No, I'm fine.” The words were hard to form. Izuku almost murdered a man just for bumping into him.
“Thank goodness,” Izuku pulled him into a hug. “If he hurt you I would have had to chase him down. I can't believe he blamed you! As if my precious Kacchan would bump into someone like that.”
Izuku’s hug felt suffocating. His breath came out in small puffs as he tried to calm himself down. He didn’t want Izuku to notice. Katsuki wasn’t sure what he was capable of.
Izuku wanted to take a shower when they got back. As soon as Katsuki heard the water turn on, he started searching the shared dresser. There was no way this…thing was his husband, but maybe he could find out who or what he was.
Katsuki rifled through their clothes but found nothing. He turned to check elsewhere when he spotted something poking out behind the hamper. It must have accidentally fallen back there. He grabbed the end of it and pulled. It was the shirt Izuku was wearing the day of their fight, right before he went missing. And there was a deep red at the bottom. Katsuki’s hands trembled as he brought the stain closer.
It smelled of iron.
The shirt was slowly dropped into the hamper. With shaky legs he made it to the bed, its plush surface a fleeting comfort. Red eyes stared off into space before they finally noticed the nightstand next to Izuku’s side of the bed. With careful movements, Katsuki opened the drawer to see a black book hiding there. He picked it up but hesitated. He could hear his heartbeat thumping rhythmically in his ears and feel the palms of his hands sweating. After a deep breath, he opened the book.
There were pictures, pictures of him. Some were taken in the morning or afternoon, but the most disturbing were the ones taken at night while Katsuki was asleep. How did Izuku even manage to take these without Katsuki noticing? He turned the pages one after another before he saw writings.
“Favorite color: Orange
Favorite food: Spicy Mapo Tofu
Hates pineapple on pizza!”
They were notes about him. His likes, dislikes, when he typically went to bed, how he liked his steak cooked, everything was in this book. Every freckle was mapped out, dimple cataloged, and limb measured. It was all so… detailed.
The steady sound of the shower suddenly stopped. Katsuki froze. He couldn't get his body to move. Then he heard shuffling.
Katsuki tossed the book back into the drawer and slammed it shut. He leapt from the bed and started to walk out of the room when the bathroom door opened. Izuku stood there, towel hanging low on his hips and water dripping from his hair.
His smile stretched across his face, “Kacchan!” Izuku walked further into the room. “Are you ok, your face is flush?”
“I'm fine,” Katsuki said just a bit too quickly.
Izuku walked forward and grasped his hand. “Why don't you come sit on the bed?” He led the blonde over and gently sat him down before following next to him.
They sat in silence. Katsuki wasn't sure what to say or what to do. He wasn't even sure who was sitting next to him. Some kind of imposter.
Suddenly, Katsuki felt a pair of lips on his neck. He froze.
“You seem tense, my love. I can help with that.” Izuku moved from his neck to his cheek, then finally his mouth.
Katsuki could feel a tongue poke along his lips. He shot up from the bed. Izuku looked at him quizzically. “I’ll take a shower to get ready.” Before the imposter could answer, Katsuki scurried off to the bathroom.
As he stood underneath the steady water, Katsuki knew what he had to do. There was no way of knowing what this Izuku was capable of. If he refused his advances would Izuku force him? Maybe even kill him? Katsuki felt a chill go down his spine despite the searing heat of the shower. He would just have to put up with this for tonight, then he could escape. It wouldn’t be that different from how sex with Izuku usually went. He was always so demanding and never cared enough to ensure Katsuki was feeling good as well. Katsuki was usually so exhausted from work that it felt more like an obligation than something he could enjoy. But he knew Izuku had needs, it's not like he could be selfish and ignore his husband.
This Izuku, this... thing — it was different, though. Today was the first time he had brought up sex. He must have been holding back this whole time.
Katsuki got himself prepped, he even stretched himself out. That way this could all be over quickly.
When he finally emerged from the bathroom, he saw Izuku sitting on the bed, waiting. Only a towel was wrapped around his lower half. He smiled when he saw Katsuki walk towards the bed.
“Come sit, my love. I’ll take care of everything, just relax.” Izuku patted the space beside him.
With stiff movements, Katsuki sat down on the bed. Fervent hands caressed his back and chest while lips started to languidly travel up his neck. His head fell on plush pillows as he was slowly pushed back onto the bed. Izuku’s kisses traveled down his body, stopping at his nipples to slowly lick around the pink buds. The towel, Katsuki’s only protection, slipped down his hips until it was plucked off his body and thrown onto the floor. The cold air hit his flushed dick and pale thighs.
Izuku pulled back, “Wow. Absolutely breathtaking.”
Katsuki threw his arm over his eyes. He felt a gross nostalgia festering in his chest. Nights spent with Izuku, where Katsuki would just wish he would come and let him sleep. His heart pounded rapidly in his chest. Fingers wrapped around his forearm and freed it from his face.
“Please don’t turn away. Look at me, Kacchan.” Izuku pleaded.
Each inch of skin was touched, deft fingers massaging sore muscles and tender flesh. Katsuki couldn’t help but shudder as Izuku massaged his body like a skilled chef kneading a delicate piece of dough. His mouth traveled to the blonde’s still-soft cock. Chaste kisses were left around the surrounding skin, each one adding to the anticipation as Izuku’s breath ghosted over Katsuki’s shaft. Heat engulfed him fully, and Katsuki cried out in response. His hips tried to wiggle away, but strong hands held him down. A lubed-up finger circled his entrance before sliding in.
“I see you already prepared yourself, such a shame. Next time, I’ll service you to the full extent.” Izuku took out his fingers and finally removed his own towel.
Katsuki felt the heavy weight of Izuku’s dick press against him. It slid up and down his cock as Izuku leisurely thrust his hips like he was savoring every touch of skin. Katsuki couldn’t help but let out a moan. Sparks lit off in his dick traveling up to his stomach and starting a rolling pleasure that heightened with each thrust.
Izuku pulled back, his eyes drowning in the beauty of Katsuki. Gently, he grabbed a pillow and placed it underneath pale hips as he grabbed lithe legs and wrapped them around his form. He pulled his cock so the head was pressed up against Katsuki’s entrance. Red eyes tried to look away, but Izuku’s hand cupped his cheek and turned his gaze toward him.
“Eyes on me, Katsuki.”
Izuku thrust in without another word. Katsuki gasped as the head pushed its way in. Izuku went slowly, waiting for his beloved to catch his breath; there was still so much to go. Tender shallow thrusts followed one after another, each one pushing Izuku further into the tight heat that was Katsuki. The bedsheets threatened to rip from how tight Katsuki’s fingers dug into them. This Izuku felt bigger than the real Izuku ever did.
Finally, Izuku bottomed out. Katsuki had never felt so full in his life. It was like every nerve inside him was being pressed at once. He had forgotten the circumstances of today, of the blood-stained shirt and the black book; all he could think about now was the slight bulge of his stomach. Izuku placed his hand along Katsuki’s abdomen, felt the way the skin swelled, and smiled so wide his sharp canines were on full display. Then the real thrusting began.
Katsuki rocked back and forth from the impact, forcing him to grip onto Izuku’s neck for some form of stability. The pleasure was like a punch to the gut with each thrust, building off one another until all he felt was toe-curling ecstasy. Drool leaked from the side of his mouth as tears began to tumble down his face. Is this what he was missing his whole life?
“So beautiful,” Izuku panted above him, his words slurring together like he was drunk off of Katsuki alone. “And all mine mineminemine.” His grip tightened on Katsuki’s hips.
Katsuki could hardly hear Izuku’s mumbling over the sound of their skin slapping together and his own pathetic moans. “Yes, yours.” He cried out. “Do-don’t stop! Deku!” Katsuki didn’t know why the name fell from his lips so easily. It was a stupid nickname from his and Izuku’s childhood. He mentioned it once to him when they started dating and immediately Izuku said to never say it again.
But this Izuku didn’t yell, instead, he leaned down and locked their lips together, not once stopping his rapid pace. They swapped moans between one another as the kiss deepened. The burning coil of pleasure in Katsuki grew, and he pulled back.
“I-I’m co-coming-” His sentence was cut off by a moan as he released all over his stomach. Katsuki rode the high of his orgasm as Izuku continued to move inside him. Just as he felt the beginning of overstimulation, Izuku pulled out. He was left feeling empty and cold, but Deku apologized by leaning down and kissing him once more. Warmth spread over his stomach as Izuku moaned into his mouth. Once he pulled back, Katsuki could see Izuku’s cum still leaking onto him.
There was a pause as both of them caught their breath. Izuku leaned up and kissed Katsuki’s sweaty forehead, “I hope you felt good, my love.” He stood up, “Here, let me get something to wipe you down with.”
Katsuki sat there, utterly exhausted and in bliss. As he heard Izuku shuffling in the bathroom, a realization came to him. There had been no fights since this Izuku appeared, no stinging words or raised fists. It had been peaceful. He was getting good sleep, good food, and lots of relaxation. Katsuki had been happier in the short time this imposter had been here than he had in all the years he was with Izuku. Maybe he could live with this Izuku. He was…unusual, but he had never harmed Katsuki. In fact, he went out of his way to protect Katsuki in ways the original Izuku never had, even if it was intense at times.
Green curls popped into the room, “You’re not asleep yet, are you?” Izuku walked over with a warm washcloth and a dry towel. Gentle hands worked the washcloth over his tired body. He was cleaned with great care, and when he was deemed spotless, Izuku dabbed at him gently with the towel.
“Thanks, Deku.” He mumbled as both towel and washcloth were thrown into the hamper.
“Of course, Kacchan. Anything for you.” Deku got onto the bed and pulled Katsuki over until his blonde head of hair was leaning against Izuku’s firm chest. His large hands started to massage Katsuki’s back and hips. Katsuki felt his heart swell.
Red eyes looked up into the still-flushed face of Izuku and pulled him in close for a kiss. It was gentle and filled with pure saccharine love.
Katsuki smiled, “My sweet husband, I love you.”