Chapter Text
3rd Year/UA Dorms
“Eat my ass, Bakugo,” Denki gave his classmate the finger before heading off to his room.
Bakugo’s god complex wasn’t new to anyone, but today he’d gone out of his way to be a jerk to Denki and he was done with it. Denki slammed his door shut behind him, surprised when it opened only a minute later.
Denki turned, Bakugo locking the door and licking his lips. The expression he wore unreadable, his eyes dark with something Denki hadn’t encountered before. For some reason, he was scared.
“Face the wall, spark plug,” Bakugo’s voice was low, raspy and dangerous.
“Wh…What? Why?” Denki stuttered, his head spinning, mind racing.
Bakugo smirked as he removed his belt, moving towards Denki, the room filled with tension Denki didn’t want to consider sexual, but his cock was already starting to harden the way Bakugo moved towards him.
“You want my belt or a pillowcase?” Bakugo’s question didn’t make sense, but Denki wasn’t stupid.
“Pillowcase.”
Bakugo nodded simply before pulling one off the pillows on Denki’s bed, continuing towards him.
“Face the wall, arms up and don’t make me tell you again,” Bakugo’s voice was low, lethal and Denki just nodded.
Denki closed his eyes leaning his forehead against the wall, scared, but turned on. Bakugo ran his hands up Denki’s sides, lifting his shirt over his head, letting out a low whistle when he saw the muscles on Denki’s back.
“Bak…”
“Wrists together and tell me if it’s too tight, okay?”
The way Bakugo’s lips moved against his ear as he whispered, sent chills down Denki’s spine as he obeyed Bakugo. Denki inhaled sharply when he felt Bakugo’s body line up with his from behind. The rock hard bulge in Bakugo’s jeans rubbed up against Denki’s ass, causing him to let out a whimper.
“Bakugo, wh…What’re you doin’ man?” Denki tried to find his courage, but the fear was starting to overcome him.
Bakugo smiled behind Denki his hands now bound, but Bakugo made sure they weren’t tight. Bakugo reached around the front of Denki his fingers deftly working the belt off before slowing working Denki’s pants completely off. Denki wore his favorite Pikachu boxers, and it made Bakugo chuckle softly. Bakugo gently grabbed the soft flesh of Denki’s ass cheeks, gently pressing himself against Denki which forced Denki further against the wall.
“Didn’t you tell me to eat your ass?” Bakugo teeth gently scraped over Denki’s earlobe.
Denki was fully hard now, unable to resist the excitement he felt whenever Bakugo touched him.
“I…I…Uh, yeah, but you’re not going to, right?” Denki was completely confused.
Bakugo kissed down Denki’s spine, his cock straining against his jeans and now leaking pre-cum as Denki shivered with every touch. Bakugo slipped Denki’s boxers down, revealing the whitest, softest ass cheeks, Bakugo had seen. Bakugo kissed the right one first, then moved to the left, his hands holding Denki’s hips as he bucked away from Bakugo. There was nowhere for Denki to go and Bakugo didn’t want him to hurt himself. Standing back up, Bakugo rubbed his clothed bulge against Denki’s soft cheeks, causing him whine.
“I’m going to eat you like I’ve been starving for years…Unless you tell me to stop,” Bakugo waited, but all he got from Denki was another long, soft whine. “You drive me crazy with those sweet noises of yours, hmm. Do I call you spark plug, baby or whore, hmm?”
Denki was already covered in pre-cum and this wasn’t helping. Bakugo’s lips against his ear, rasping dirty words.
“Baby.”
Bakugo smiled, running his hands along Denki’s bare sides, his fingertips tracing his v-cut, but stopping short of touching his aching cock. Denki couldn’t help himself and leaned his head back trying to nuzzle against Bakugo’s face. Bakugo let him, his cheek rubbing against Denki’s soft hair while inhaling deeply the citrus scent that was all sunshine and Denki Kaminari. If Bakugo thought it was impossible to get harder, he was wrong. All his senses were on fire being this close to the one person that annoyed him the most.
“Hmm, fuck you make it difficult to focus…Spread your legs for me…Baby,” Bakugo purposely lowered his voice on the last word, smiling when he saw a streak of Denki’s pre-cum running down his leg. Bakugo nearly lost himself when he saw some pre-cum dripping down Denki’s inner thigh as his legs spread. “All you have to say is stop. Okay?”
“Hmm-mm,” Denki nodded, biting his lip so hard, he tasted blood.
“Use your words, baby. I need to hear it from your sweet lips,” Bakugo ran a fingertip down Denki’s spine.
“All I have to say is stop,” Denki repeated his voice barely above a whisper.
“Good,” Bakugo knelt back down, kissing the entirety of Denki’s ass, avoiding his hole completely and purposely. Bakugo used the tip of his tongue where the pre-cum had run down Denki’s thigh, slowly, tortuously moving his tongue back up and swiping the underside of Denki’s perfectly groomed ball sac. Denki moaned so loudly Bakugo cursed softly because by now his cock was hard enough to be used as a weapon. “Fuck baby, your cum is so damn sweet. Did you know I’d be tasting you today, hmm?” Bakugo gently fondled Denki’s balls as he spoke.
“Ah fuck…Baku…”
“Nope. Call me that name I pretend to hate,” Bakugo purred, before gently squeezing Denki’s balls.
“Ahhh. I…I don’t remember…I…”
“C’mon baby. You know it,” Bakugo said, adding a little more pressure to his squeeze this time.
“Ahh, shit, fuck, shit. Suki. Suki.”
Bakugo released Denki’s balls, kissing the back of his thighs.
“Good. When you cum, scream Katsuki, but when you’re whining and whimpering, it’s Suki, okay?”
“O…Okay,” Denki was shaking like a leaf now.
Bakugo used his hands to gently spread Denki open for him and then he began licking the outside of Denki’s hole before slowly darting his tongue in, but only enough to tease, not enough to give any relief.
“You okay, baby?” Bakugo pulled back.
“Yeah…Yes, Suki.”
“Tell me how it feels. I wanna hear everything, okay, baby,” Bakugo squeezed Denki’s ass cheek affectionately.
“It feels different, but good. I…I’ve never done this before,” Denki admitted.
“I know baby, that’s why I’m so glad you told me to…Been waiting for the sweet ass for so long…” Bakugo sucked on a finger before slowly circling Denki’s hole, then gently, carefully sliding it inside, just to prep him a bit. Denki mewled, arching back in pleasure. “I dreamt about you sitting on my face, about smothering myself between your sweet soft ass cheeks. Fucking jerked off to the thought of you just like this. Now you’re making my dreams come true.” Bakugo stood back up, gently turning Denki by his chin so their eyes met. Bakugo ran his thumb along Denki’s swollen lower lip before gently kissing him. Bakugo pushed his tongue through Denki’s closed lips, moaning when Denki’s tongue brushed against his. Bakugo pulled back, his large palm holding Denki’s cheek, their eyes still locked. “Thank you, baby,” Bakugo whispered.
“I thought I was imagining it,” Denki whispered to which Bakugo shook his head before disappearing behind him again.
Bakugo sucked on his index and middle fingers before sliding them inside Denki’s tight hole, Denki crying out as Bakugo gently moved inside him. Bakugo wasn’t going to hurt Denki, wouldn’t dream of it. Being in love with the ball of sunshine known as Kaminari, Bakugo couldn’t have fought it if he tried. Brought back from his thoughts as Denki’s hole clenched tightly around his fingers, Bakugo wasn’t sure how far this would go, but he wouldn’t push Denki.
“No baby. It’s real. I’ve never wanted anyone the way I want you, Denki. Always been you, I promise,” Bakugo knew Denki had no real confidence and was determined to let him know how special he was to him. “You like Jiro and I…I wasn’t sure, but then tonight…When you said…I couldn’t help myself or deny it anymore. You are mine. I won’t share you,” Bakugo slid a third finger in, continuing to scissor Denki open.
Denki hated that he was whimpering like a pathetic whore begging for an orgasm, but he couldn’t help it. Bakugo knew exactly what he was doing, one hand cupping and massaging Denki’s balls while the fingers on his other hand worked his asshole. It felt so good he was fully covered in pre, not even caring it was now staining the wall.
“I don’t…Ahh, fuck…I don’t wann…Only you Suki. I swear…It’s only you…” Denki was breathless trying to form simple words but struggled.
“Baby, I’m going in now, okay?”
“Yeah, yeah, okay.”
Bakugo licked around Denki’s hole before slowly sliding his tongue inside, his moans reached Denki’s balls (or at least it felt like it to Denki) causing more pre to escape. Denki was holding himself back, no matter how painful it was he didn’t want this to end. Then Bakugo plunged his tongue deeply, his fingers in tandem causing Denki’s vision to go white as his orgasm escaped sending shockwaves through his whole body. Bakugo chuckled licking his lips as he caught Denki's spasming body.
Carrying him gently to the bed, Bakugo lay Denki down beneath him, removing the pillowcase from his wrists. Denki’s haze filled eyes gazed up at Bakugo, a content smile appearing.
“You lasted longer than I thought you would,” Bakugo teased while kissing down Denki’s neck and sternum down to his belly button.
“Shut up…It…It felt so good, I couldn’t…Ahhh, fuck Katsuki!” Denki screeched as Bakugo’s mouth devoured his cock fully.
Bakugo tried not to laugh as Denki blew a second full load into his mouth. Swallowing, Bakugo made sure to lick up all the cum from the first orgasm, cleaning Denki up himself. Denki continued to shake due to the overstimulation Bakugo’s tongue and mouth were giving him.
“Fuck, sounded so good to hear you scream my name,” Bakugo breathed out as he lay next to Denki pulling him against his chest.
Denki looked up at Bakugo, wondering if he would always be this sweet in private. Denki already knew Bakugo would want to keep this quiet and would most likely treat him the way he always had in public.
“Hope I wasn’t too loud,” Denki chuckled.
Bakugo glanced down at Denki, his chin resting on the exhausted blonds head.
“Why? I hope everyone heard it,” Bakugo smiled.
Denki was afraid to look up at Bakugo assuming he was joking or being an ass. Denki didn’t want this sweet version to go away yet, so he just looked at Bakugo’s chest.
“I know we’ll have to keep this a secret, but…”
Bakugo tipped Denki’s chin up so their eyes met, Bakugo’s thumb rubbing gently over Denki’s skin.
"You ashamed to say you’re mine?” Bakugo asked softly, the caution in his eyes making Denki wonder if he was wrong.
“What? No! I just thought…You like privacy and I mean…”
“Us fucking is private. Us dating isn’t. I want everyone to know we’re together.”
“Seriously?” Denki’s disbelief made Bakugo chuckle.
“Yes,” Bakugo brought Denki’s lips down to his, the kiss deepening quickly.
Bakugo pulling Denki’s naked body against his fully clothed body, burying his hands in Denki’s soft, silky locks, moaning as Denki sucked on his tongue.
“Are you still gonna be a jerk in public?” Denki whispered searching Bakugo’s ruby eyes.
“To everyone, but you, baby,” Bakugo’s voice was so low, so soft it made Denki melt.
Bakugo was running his hands through Denki’s hair, afraid this would all be a dream in the morning and he would shatter. Denki peppered kisses around Bakugo’s face and then his neck causing a real laugh to escape Bakugo.
Denki slipped his hands under Bakugo’s shirt causing him to shudder which made Denki smile. Bakugo lay there enjoying the way Denki’s golden eyes danced with mischief, as his hands ran over Bakugo’s torso. Denki noticed the bulge hadn’t gone anywhere and decided he wanted far more than he’d already gotten. Bakugo startled when Denki pulled the zipper of his pants down.
“All you have to say is stop,” Denki’s voice was straight lust and Bakugo groaned at the promise dancing in his gaze.
“You don’t have to…It’s only our first…”
“I want to,” Denki smiled, tapping Bakugo’s hip so he’d lift them making it easier for Denki to remove his jeans. “Help me out, Suki,” Denki teased kissing Bakugo’s abdomen.
“Denki…If I lose control…You have to…”
“Shh. Just let me take care of you, okay?”
Bakugo bit his bottom lip and nodded while lifting his hips allowing his jeans to be removed. Denki smiled when he saw the black boxer briefs stained with pre-cum, feeling dizzy from the fact he made Bakugo this turned on.
“Denki…What’re…We have to prep you more…”
Bakugo was nervous now as Denki brought out a condom from his desk, before carefully removing Bakugo’s boxer briefs. Bakugo’s cock was so hard there was an actual ‘smack’ sound when it was freed and hit his lower abdomen. Denki swallowed more than intimidated by Bakugo’s thick, long cock. Denki had length, sure. Even a fair girth, but Bakugo was no less than 3 inches wide and 8 inches long. Denki had only ever seen that in porn and assumed it was a prosthetic.
“So, uh, I think this may actually kill me, but what a way to go,” Denki smiled, and Bakugo broke out into a full laugh.
“Dumbass, I told you we have to prep you more. I don’t wanna hurt you.”
Bakugo could see Denki was working it out in his head, but he really was afraid he’d hurt the smaller blond.
“You put the condom on and I’ll lay on my side. I dunno, maybe if you ease it in, I won’t die,” Denki spoke with a casual shrug.
Bakugo smiled again, before pulling Denki back in his arms, their lips crashing together. Denki finally pushed himself up, hands braced against Bakugo’s now bare torso.
“Ya gotta stop sayin’ that shit,” Bakugo warned.
“When did you lose your shirt?” Denki blindsided Bakugo again with his reaction.
“Fuck, you are amazing. Ya know that?” Bakugo asked while slipping the condom on.
Denki would never admit he knew Bakugo practiced putting condoms on because he was afraid he’d mess up when the real time came to put one on. Denki was sure most of the guys in their class did the same thing.
“Glad you know it,” Denki winked before laying on his side in front of Bakugo. “There’s lube in the draw of the nightstand,” Denki added, glad he could hide his apprehension from Bakugo.
Bakugo used a copious amount of lube and even slid his lubed fingers back into Denki’s hole to make sure he was as prepped as possible. Bakugo aligned himself with Denki, settling an arm over his abdomen to keep Denki as close as possible. Bakugo kissed the back of Denki’s neck gently.
“I’m not going all the way in, not the first time, okay. The second it hurts, you tell me…I mean it, Denki.”
Though he whispered in Denki’s ear, his emotions were clear as day and it made Denki’s chest swell with affection. Denki didn’t think anyone truly gave a fuck about him, but in all the little things Bakugo had done for him over the years, it all made sense. Bakugo was the only one to make sure Denki never got left behind. In classes, plans or even training and it was now Denki realized that’s what Bakugo’s love looked like. Being there, silently learning everything about Denki and making sure he was never alone.
“I want it to hurt, Katuski. I want to know tomorrow morning that this is real and that it wasn’t some pornographic dream I had. I want to feel it tomorrow when we go down for breakfast and everyone finds out. It’s going to sound stupid, but I want to be marked by you in a way no one else can mark me…I don’t care how much it hurts or if it hurts at all,” Denki was surprised by his own honesty.
“Fuckin’ mush,” Bakugo teased, nibbling Denki’s ear.
“Yeah, yeah, then fuck it outta me, big man,” Denki challenged.
Bakugo took a deep breath before slowly guiding his cock head to Denki’s hole. Bakugo nudged just the tip of the head in so he could gauge Denki’s reaction, but other than a soft moan, his body remained relaxed.
“Baby, talk to me, okay?”
Denki heard the worry in Bakugo’s voice and simply covered the hand on his abdomen with his, squeezing Bakugo’s fingers gently.
“I’m fine, but dying of old age over here,” Denki smirked, his tone playful.
Bakugo smiled and gently pushed in further, Denki’s back arched into him a loud gasp escaping his lips, but Bakugo trusted Denki to communicate. So he slid in even further, the head of his cock now out of sight, nestled within Denki. The clenching was causing Bakugo to see stars, his control slipping quickly and he didn’t even have a full inch inside Denki.
“Fuck…M’not gonna last long,” Bakugo gritted his teeth.
“Remember to scream my name,” Denki teased again.
Bakugo released a half-laugh mixed with a groan as Denki purposely clenched, the stretch making him sore, but he wanted this so much. For Bakugo to make him his and even if the angry blond changed his mind Denki knew this night could never be ripped from him.
“Fuckin’ stop, baby. I can hear ya doubtin’ this. M’Not fuckin’ goin anywhere, got it?” Bakugo demanded, biting down on Denki’s shoulder to leave a mark. Denki cried out but didn’t say anything. “Wanna hear you say it, now,” Bakugo snarled, biting the side of Denki’s neck viciously.
“Fuck! I know, I know,” Denki finally cried out as Bakugo tweaked one of his nipples.
“Know what?” Bakugo smirked.
Denki knew he was purposely riling him up. Denki could play that game and far better with the position he had Bakugo in. Clenching down, grateful for all the kegels he’d done since hitting puberty, he felt Bakugo’s hot load burst inside him, letting out a long moan from the sensation. A long low growl mixed with a moan escaped Bakugo as his forehead fell to the crook of Denki’s neck.
“I know you’re not going anywhere as long as I keep my ass cheeks clenched,” Denki replied, Bakugo’s soft laugh melting him even more.
“Fuck, that wasn’t even a little bit in…Pissed I let go so…Hmm…”
Denki turned quickly, Bakugo’s soft cock sliding right out as Denki smashed his lips to Bakugo’s.
“That means we have to practice a lot. Up your control and stamina…”
Bakugo cupped the side of Denki’s face, his chest overflowing with warmth for this airheaded man he loved. Fuck. He was whipped, but he wouldn’t ever admit that out loud. But as he searched Denki’s golden eyes he realized he would admit it. Every day, a thousand times as long as it kept Denki at his side.
“Yeah…I’ll start looking into safer positions, at least until I’ve got that pretty little hole accustomed to my cock.”
Denki smiled, snapping a mental picture of this moment.
“I could get some toys…”
“No! Nothing else touches that hole but me, got it. Not even you. No prepping yourself, that’s my job now. No jerking off without me…Got it?” Bakugo demanded, though his voice was still as soft as silk.
“No fair! I should be able to touch myself.”
“Nope. Non-negotiable. C’mon.”
Bakugo pulled Denki down onto his chest, resting his chin on the silky blond hair, smiling as he inhaled that citrus he’d never get tired of.