Work Text:
It had been Izuku who had asked him in such a timid voice that Denki would have never pegged him as an alpha. The question slipping past the man's lips brings forth a wave of emotions overbearing his body.
“Would... You... Would you be interested in being our omega?”
To say he was shocked was just one of the many fluttering emotions that bubbled within him.
The coupled alpha pair to come out of U.A.? Their omega?
Katsuki and Izuku’s omega?
Just the thought of being mated to one alpha was exhilarating, but, the idea of two alphas? That was almost unimaginable.
“I’d be interested but wait-!” Denki stammers, a chuckle nervously coming out of him. He knows that he looks the part of an overly flustered omega; probably much like a virgin being courted for the first time. “Seriously?”
Katsuki speaks up from next to Izuku, his feisty glare and pink cheeks show for his embarrassment. “We should just go through an omega agency.”
“Kacchan.” Izuku shoots him a look, obviously frowning. His mate rolling his eyes and scoffing as the green-haired alpha turned back to their prospective omega. “Maybe we should do this... Over some food? What do you say?”
Denki blinks and his stomach answers for him, rumbling out of him to only fluster him further. It was such an obvious ploy—alphas feeding an omega. He knew that much that it was one of the first steps to show they could provide, but he had read the hero report the past quarter, he knew how much they both made. As they walk, Izuku fills in the awkward silence with events that have happened at his agency and Denki spares Katsuki a glance.
He looked absolutely furious. A twitching vein on his forehead, his teeth grit, canines on display. The omega wondering if he was just following along if it was Izuku’s idea—either way, this could end badly.
Denki is halfway through his meal when he finally asks the question.
“Why do you guys need an omega?” His mouth is full but he’s heard.
Izuku and Katsuki look at each other and he is left out of their silent conversation with one another. The blond alpha scoffs as he looks away, bringing his drink up to his mouth to greedily suck on his straw.
Izuku is left to answer. “We can’t really have sex.”
The omega spit out his tea and coughed as he choked on the remnants of his drink that caught in his throat. Izuku reaching over the table to pat him on back to try and alleviate the situation.
By the time he had calmed down, Denki’s entire face was a blazing red.
The crossing image of the two alphas in bed was too alluring to try and ignore. The more he tried to push the thought of his head, the more explicit the image became. A physical display of aggression between one another, trying to force the other to submit and get on top.
“S-S-So....” He stuttered so badly he sounded like he was hissing. “You... Need... Me? For what?!”
“We, well, I thought if we had a mate that was also a hero it would make the situation less complicated...” Izuku explained poorly.
Denki’s brows furrowed in confusion.
“Sex! We need you for sex!” Katsuki growled and the omega chirps in surprise, eyes wide.
He lost his appetite and it was replaced with a muddled mixture of heat in his core.
“Why me? I thought... Aren’t you closer to Ochako? She–“
“But you’ve slept with Kacchan before.” Izuku interrupted and his eyes glance between his mate and the omega in front of him.
The memories of their second year and the clumsy weekend that the two blonds had been close suddenly slapped him across the face and he grumbles as he nods slowly.
“Listen, just say yes or no. I don’t have the time or energy to be waiting for you if you can’t make up your mind.” Katsuki says and Denki’s lips tremble—words caught in his throat.
Izuku sighs and he places a hand on Katsuki’s shoulder, the two alphas having another silent conversation.
Denki twiddles his thumbs. “It’s just sudden. I know some people pair up with even less talk or time...” Sudden marriage or pairing wasn't uncommon but he wasn't the first choice as an omegan hero in the line of danger.
The table goes silent for a few moments, a decision hanging over them.
“How about a trial run? Come stay with us, at our house, for a few days and if you like it...” Izuku reached out, his fingertips dancing across Denki’s knuckles. “We can talk about it again.”
His heart fluttered at the little touch from his former classmate. The little suggestion was just too good to pass up on, it sounded like an exciting experience to participate in.
“Sure! Yeah, let’s do that!” The omega grinned widely—beginning to eat his meal happily again.
Izuku explained to him that he had not been their first choice. But an omega who knew how important their work was would be a better choice for them.
In the three days that Denki would stay at the alpha’s house, he was expected to act as if they were mated. He would be taken care of and if he was leaving to work, he would have to tell one of the alphas. And if he truly wanted, they could also have sex.
Everything sounded good but the idea of taking the two, much larger, alphas at the same time churned his belly.
But not in the worst way...
Katsuki was on board with it all but he didn’t want to open up to someone who was not all in yet.
Turns out, sex was hard between two dominant alphas—neither wanted to submit or force the other down to take a knot. Izuku and Katsuki had hurt each other one too many times to be bothered with the downsides of having sex.
The healthiest solution was to bring an omega in... Someone they could let themselves care for easily, letting the two alpha's cave into the instinct to have a little bitch in their home. Someone that they could both fuck at the same time with leisure; no need to worry about hurting an omega that was made to take their knots and the excessive amount of cum.
And so, the three days began.
——Day 1——
He only brought a duffle bag with the clothes and a few necessities that he would need. Toothbrush, shampoo, and his favorite pillow—he just couldn’t sleep without it. The apartment was luxurious, obviously paid for by a hero income of top heroes. Just getting into the area was a miniature culture shock for him.
Denki wilted slightly—he needed to demand a higher pay grade from his agency already.
Izuku was at work, so it’s up to Katsuki to show him around his temporary home. He shows him the wide kitchen, the living room, the patio, the bathroom, and the guest room that was treated as an office.
“Am I staying in here?”
The alpha looked down at him and Denki wondered if he said something strange.
“You’re sleeping in our room, dunce.” Katsuki says curtly, leaving no argument.
“Oh.”
Of course, he was.
They were mates right now, he would absolutely sleep in their bed. Katsuki takes his bag and pillow, walking into the master with it to carelessly toss both items on the clean sheets.
“Deku’ll be home in an hour so...” He scratched at his neck and made a face, but it's not completely closed to the omega. “Let’s cook some dinner... Together...”
It wasn’t as horrible as Denki had imagined.
Katsuki was of few words when they’re in the kitchen. Denki helping out here and there but never getting in the alpha’s way. It was rather pleasant to do so, it wasn't so bad to cook with someone who actually knew what they were doing. He gets the things from the fridge when he's asked and more than once, he had looked over his shoulder to catch Katsuki's eyes on his ass.
He can't help but feel bubbly and light, the attention wasn't too bad.
They're almost done with the food when they hear the front door open and a voice calling out from the other side of the apartment.
“I’m home!”
Katsuki didn’t move so Denki didn’t either, both of them just listening to the other alpha make a racket in the doorway. He walks in a minute later and smiles at the two blondes in the kitchen.
“Hey.” He said again and walks over, a warm kiss on Katsuki’s lips and he looks at Denki.
The omega blinked and his cheeks warmed when Izuku placed a duplicated kiss on his lips as well.
He doesn’t get a chance to question it as Katsuki immediately started to scold the other alpha for not washing his hands or face yet.
“I’m going! I’m going!” The alpha whines as he conceded and he leaves the kitchen.
Katsuki goes back to finishing their dinner and Denki just stands there, looking flabbergasted. The alpha elbows him not too gently to get the omega out of his own head to continue his little task.
“Get used to it.” He’s told gruffly. "Deku is all affection so you can't have that shocked look on your dumb face."
Denki only nodded, his lips feeling like they were buzzing from the chaste kiss—he hadn't expected the affection to be shown so easily or so immediately. He supposed it was because they've known each other since high school.
He fixes the small rectangle table. He sits when he’s told and Katsuki places the food down. Izuku sits next to the omega and Katsuki sits across from them. They eat and Denki smiles. He wouldn’t mind it like this all the time.
A home-cooked meal, lively chatter at the dinner table.
Izuku washes the dishes and they all sit together to watch a movie afterward.
He enjoys the rest of the night peacefully... Until it’s bedtime.
He takes a bath alone, letting himself soak in the heated water. He takes a while there, trying to build up the courage to go into the bedroom and get in bed with the two men who are now his temporary mates. He gets out once the water left his skin all pruned and wrinkled. He shouldn't be a coward. He gets dressed in his pajamas as he walks the two alphas are already waiting for him.
“I... Should... How are we doing this?”
“Well...” Izuku started, rubbing his chin in thought, glancing at the bed and then back at the omega. “Just come over here.”
He ends up in the middle of them and he stared up at the ceiling as he tried to keep his thoughts wholesome.
He’s not used to having his legs touched. Not used to the amount of muscle that surrounds him on both sides. His head is spinning with the thick veil of alpha pheromones around him.
It’s Katsuki who puts an arm around his waist, Izuku’s face near his own, and the two alphas rumble in contentment as they fall asleep. He lays awake but as a gently purring erupts from him, he knows he’s quite happy with how it was all turning out and sleeps well between them.
Denki knows he's going to get a good night's rest right there.
——Day 2——
Denki wakes up and one of the two alphas is already gone. He’s being held, his back against a broad chest—he looks over his shoulder and see’s Izuku’s face.
He sniffles and when he tries to pull away, he held even closer. The arms around his midsection tighten.
“Morning...”
Denki flushed. The alpha’s voice even deeper from sleep but what had him on edge was the hard-on pressing against the back of his thigh.
“Mornin!” He squeaks and squirms to get out of the hold.
“Mm, sorry...” Izuku lets him go and they both sit up.
Denki’s eyes staring straight at the absolute monstrosity of a bulge that Izuku rocks in his pajamas. His head swims with lewd thoughts and he fumbles to get a word out.
“Where’s... Baku-Katsuki?”
“Went to work early, he'll back soon.” Izuku answers in a grumble and shortly noticed the gaze directed straight at his groin. The alpha chuckled shyly, grabbing a pillow to cover himself up, pink at the cheeks in realization.
“Sorry...” The omega swallows and his mouth feels bitter like he wants to see and taste what the alpha packed but he restrained himself. They don’t talk about it any further because neither is sure where the boundary is yet. Izuku looked like he wanted to but nothing comes from it.
They’re both halfway done through breakfast when an annoyed Katsuki comes through the doors. Denki blinks at him and he doesn’t expect a rough mouth to press against his—tongue slipping past his surprised lips, a hand on his nape holding him close. His hand on Katsuki’s chest as he gasps when he's forced to tilt his head, the kiss deepening almost too intensely to happen over breakfast. The alpha licks his lips as he pulls away after getting the kisses he wanted—a satisfied growl as he looks down at the flushed blond.
“Sweet...” Katsuki rumbles before walking around the table and doing the same to Izuku. Denki watches as the two alphas growl at each other, caught in a heated kiss.
How manly!
He stares—he can’t help it. It's not every day that he got to see such strong alphas get so passionate with each other so quickly. Sharp tongue over an equally hot tongue. Sharp teeth clashing as they growled affectionately for one another.
“Relaxed enough?” Izuku asks when they separate and the blond alpha grins.
“Yeah... ‘m fucking starving though.”
Denki takes his chance, standing up.
“I’ll grab you a plate!”
It only takes him a short while but he comes back to the table and he sets the food in front of Katsuki. Waiting for a moment, a bit of omega servitude gnawing at him from within.
“Thanks.”
Denki smiles and sits down again. Breakfast was a success!
Denki falls into their routine because outside of hero work, they don’t do anything too crazy at home. They watch an action that Deku fanboys about and Kacchan works on his gauntlet. Hours pass and once noon hits, the two alphas decide to take a bath together.
“Want to join us?”
Denki blushed and chuckled. “I’m good, thanks...”
The two of them shrug and leave the room, almost chasing each other as they rush to the bathroom. The omega sighs softly and slouches on the couch, scrolling through his phone for half an hour when he gets a call from his agency.
He frowned. He had requested the whole weekend off but he wasn’t an independent hero like the alphas he was staying with.
If he was called to cover a patrol, then he would have to oblige—unless it was time off for his heat. Plus, the extra hours that he was paid weren't the worst.
He gets ready and he’s almost out of the apartment when a scarred hand slams against the half-open door.
Denki's stomach drops in shock, for a split moment forgetting that he was staying with two men.
“Where are you going?”
He can feel the heat behind him and he turns to look over his shoulder, Izuku crowding him with a frown on his face.
“Oh! Uh, I’m just-!” He stammered so horribly because it had been the first aggressive action he had received from the green-haired alpha. He squeaks when a spare hand dances along the hem of his shirt, fingers sliding underneath to touch his waist.
Denki could smell it. The suffocating reek of arousal that clung to the alpha—how it made him press his thighs together as heat spread from his groin.
“P... Patrol...” He answered and he was semi-glad that his voice did not falter as much as he would have thought.
“You’re supposed to tell us if you’re leaving, remember?”
Denki nods. He wants to leave, not that he was uncomfortable but the way his body was starting to respond was bad. The sweltering wetness escaping him made him panic. It was happening—he was getting extremely turned on and it doesn’t help is when Izuku kisses his nape slowly, lips dragging over his skin. The omega whines softly as teeth graze his skin and he slides a hand over his nape to cover himself, turning his head with wide eyes.
Izuku blinks down at him as if he hadn't done anything wrong and Denki’s eyes trail lower.
“You... You’re naked?!”
“I got out in a hurry because you were leaving...” Izuku huffed, a pout on his lips.
“Okay?! Uh! I’m leaving! I have patrol! Bye!” He quickly squabbled out and Izuku took a few steps back, letting the omega open the door and run out.
Denki held his chest as he made his way to work.
He couldn’t get the image of the naked man out of his head the entire patrol...
It’s strange to him.
Both Izuku and Katsuki message him throughout his patrol as well as the few hours he spends training interns and doing paperwork over a villain incident—telling them that yes he ate dinner and yes he’ll still be at the agency for a while more.
It’s late when he gets back to the apartment, opening it with the spare key that he had been given over breakfast.
His shoulders are heavy, his back hurts. He was tired as tired could get.
But when he enters the apartment, his body sends him into high alert. The smell of cum was thick in the air.
He slowly closed the door behind him and he makes himself as quiet as possible.
Taking off his bag. Putting his shoes on the rack. Hanging his coat. Anything to avoid letting them know that he had gotten back home.
“What are you? A mouse?”
Denki looked up in surprise and let out a scream as he covered his face. “N-N-Naked?!?” He shouted in surprise, squirming in place as the image of the naked hero pestering behind his eyelids.
Katsuki perks a brow as he grabs Denki's wrists, pulling them from his face and the alpha's face is inches away from him.
“If you’re going to be our bitch, you need to get used to it.” He growls and the omega keeps eye contact to avoid looking down. “Got it?”
“Yeah...”
Katsuki grins, pulling his wrists down.
Denki's lips tremble as he’s made to feel up the alpha’s soft cock, he doesn’t have to look to know that it’s got girth and length. He can’t help but think how the two alphas sized up to one another.
“Did... Did you guys...” Denki stammered and his nose twitched. “Have... Sex?”
“Just some head and jerkin’ off.” The alpha answers instantaneously. Red irises glancing over to the shorter blond, tongue sweeping over his bottom lip. The corners of his mouth tugging upwards to curve into a cocky smirk. “Wanted to watch?”
Denki shakes his head quickly and his face heats up enough to bring tears to his eyes. “No... Just asking...”
Katsuki eyes him and scoffs—letting him go and walking down the hall, to the bedroom presumably.
Denki lets out a breath and bites his lip. The feverish slick that trails down his inner thigh wishes that he would have said yes to the invitation. His imagination tries to picture how the two men were in bed. What he didn’t expect is how this picture had him in the middle. He wanted to touch himself, wanting to lay in bed and get desperate but he couldn’t do that with those two in the room. Their arousal seemed to be leaking through the walls.
Denki wanders into the bedroom, peeking inside.
“I’m not interrupting... Right?”
Izuku and Katsuki laid in bed, their eyes trained on the omega. He chewed on his bottom lip.
“So... You said...” He walks up to the bed, playing with his own fingers. “We-We could have sex... If I wanted...”
It was like he had flipped a switch.
If he thought the arousal from earlier was anything, the scent that surrounded him now was enough to make him feel like he was drowning.
Katsuki reaches out, grabbing his wrist. “Fucking finally! I’m going to fuck your ass so good.”
Izuku leaned in and Denki sputtered. “Can you take us both?” He asked politely, ignoring how his blond mate ravished the omega’s neck and shoulder. Denki gasped and keened, his senses overloading as he’s pressed between the two horny alphas.
“I can wait until Kacchan is done...”
The omega trembled as his clothes were nearly torn off of him, his body touched by four greedy hands. He needed to be confident, fake it until he made it.
“Got two holes... Bring it....”
Both alphas rumbled happily at that.
Denki’s head was laid in Katsuki’s lap while his legs were spread wide open by Izuku—both alphas looking down at the glistening mess between omega’s plump thighs.
“Hah! We barely started!” Katsuki laughed snarkily, his hands planted on Denki’s chest, fingers playing with his pink nipples. Denki gasping as they stood in hard nubs, the alpha pinching them to tease him even further.
“Woah... It’s a mess!” Izuku gasped, being unintentionally rude in his surprise. His green eyes widening as he shyly grinned. “Sorry...”
Denki squirmed to try and press his thighs together but the scarred hands on his knees keep him exposed.
“Touch him... No... Touch yourself.” Katsuki told him and the omega obeyed.
His shaky fingers slide down his abdomen and across the small tuft of pubic hair. A whimper leaves him as his fingers sink into his throbbing pussy, grazing over his swollen clit.
Izuku and Katsuki stare shamelessly as the omega spreads himself, the scent of slick mixed in the air.
He can’t bring himself to push his fingers inside of himself—he can almost hear the lewd squelching the slick will make around his fingers.
He only rubs his clit, grinding the hard bun as he began to moan helplessly. He can feel a fountain of wetness drenching the sheets below.
“I get this hole...” Izuku growled and Denki looks at him with teary eyes. The alpha licking his lips; drool dripping down his chin as he stares.
“Whatever. Hey, bitch.” Katsuki says to call his attention.
Izuku immediately reprimands him for it. “Don’t call him that, Kacchan.”
Denki turns his head when his cheek is pushed and his breath halts.
“Suck.” He says lowly, teeth gritted as he tapped his cock against the omega’s cheek, letting pre-cum dress the flushed skin.
The omega opens his mouth slowly, his tongue falling past his lips as he relaxed as the heavy length slipped in. He whined around the cock, letting Katsuki hold the back of his head to guide the pace at which his throat is slowly fucked.
Denki whimpered around the length in his mouth as a thick finger slipped knuckle deep into his soaked pussy. The sounds his cunt made caused his ears to burn, his eyes to screw shut. The ferocity that Izuku fingered him made him shake—the way they curled and pumped into him made him whine.
“Deku, you have to try this mouth.” The blond alpha groaned as his hips pressed further. Denki’s jaw opening as wide as possible. His throat extending as Katsuki slipped down past the muscles that contradicted in retaliation. “Better than yours.”
Izuku chuckled, a third finger slipping into the omega, making a sloppy mess of the cunt. He pulls his fingers out as Katsuki slips his cock out of Denki’s mouth. The blond alpha waste no time, tilting Denki's chin up to look at the slobbering mess that the omega had drooled. Katsuki gathering up the shiny spit on his fingers to slide them back down on the perky nipples, pinching them and rolling the nubs between his fingers.
“Ah!” He cried as a finger pushed into his ass. His tight asshole twitching around the thick finger as it curled inside of him to start loosening him up. The omega gasped, twitching as he was assaulted from both sides.
“Sorry, sorry...” Izuku apologized, working the slick finger in and out, relaxing the tight rim of the omega under him. “But if I don’t do it, Kacchan will go in without prep...”
Denki purrs gratefully as the alpha’s thumb sweeps over his fat clit, pleasure returning to him as his asshole is stretched open.
The nerves bubbling—he was going to take both soon. He felt quivering nerves inside of him, he was reluctant and impatient all at the same time.
Denki sighs in near relief when Izuku’s soaked hand pulls away from his loose holes, a moment to breathe without the pleasure of fingers inside of him.
His eyes open and he watches in a heated disgust as Izuku presses his fingers against Katsuki’s lip, enticing him to take them in. The alpha smirks, his tongue slipping past his curved lips to take in his mate's index and middle finger. He holds back a gag when Izuku pushes them in too deep, fucking his mouth with the two appendages.
How could something so gross be so hot!, Denki thoughts shouted at him.
He pushed to sit up by Katsuki, both of them waiting until Izuku got comfortable laying down against the pillow. It’s the first that the omega has seen of his hard cock—laying heavy and hard against his hip.
“Get on top.” Katsuki grabbed his hips, moving him in a rush.
Denki’s legs tremble, not in exhaustion but in exhilaration and anxiety.
Just the thought of taking the alpha below him had him nearly wetting himself.
Taking both should award him a medal! He’s sure there’s a cockslut trophy somewhere on the–
His train of thought is cut short.
He shivered as he planted his hands on the alpha’s chest for leverage. Izuku taking a hold of his own dick, rubbing the head against Denki’s puffy lips as he groaned. That quickly grounded him back into the situation.
“Whenever you’re ready.” He sounds so kind that Denki feels ready immediately.
He just nods dumbfoundedly at him. He lifts his hips a bit higher, his ass sticking out as he tried to get the best angle to take it all at his own pace. He grinds against the alpha and bites his lip as his innards throb to be filled.
“Okay... Okay...” Denki murmured to himself as he sunk down but he stills for a moment. He was barely halfway down and he was already reaching a limit—the ache of being spread open so deeply made him stop. Though it seemed the alpha behind him had no patience for letting him adjust so slowly.
“Quit stalling!” Katsuki’s hands press down on his shoulders and Denki whines out, long and pitched as he’s filled to the brim with the alpha’s thick cock.
Izuku nearly barks at his mate for pushing the omega too quickly. “Kacchan! What are you-”
Denki’s eyes flutter open and closed. The two alphas bickering becomes distant and he giggles softly.
“Woah...” He inhaled and shuddered. "So full..." His little omega brain broken as he feels himself become complete.
He really did love being an omega.
“See? He’s fine... Little bitch...” Katsuki groaned happily, dragging his teeth across the omega's nape and enjoying how the blond bucked in interest to the teasing act of almost a bite.
Denki moans as a handful of his blond hair is grabbed and yanked back, a curling smile on his face just like when he overused his quirk.
“Like it, don't ya?” The alpha growled in his ear, his voice dripping with arousal.
“Kacchan, stop– Oh, fuck...” Izuku’s scolding is cut short as the omega in his lap started rocking his hips slowly.
Katsuki speaks filth in his ear, degrading him, calling him such cruel names. Izuku’s hand spread over his thighs while singing praises to him, calling him their sweet omega.
Denki was caught in a wonderful whirlwind of two different attitudes.
“Hold still.”
His brain is electrocuted back to reality with a rough hand smacking down on the muscle of his ass, making him gasp and whimper as the heat radiated off the sore spot. His cunt clenching down in excitement around Izuku's cock and the green-haired alpha tells his two partners just how good it felt. The omega shouldn't have shown such an honest reaction because it rewarded him with an equally burning slap to his other asscheek. His muscles felt weak to the hits.
He was growing to love the pain rather quickly.
Katsuki positioned himself right at the hole he wanted, a hand on the omega’s shoulderblades to push him and make him lean forward. His mouth hangs open as he’s penetrated inch by inch. Tears welling up in his golden eyes as he’s filled. The only thing keeping him sane is Izuku’s thumb on his clit.
But when Katsuki bottoms out, Denki feels a sense of accomplishment fill his chest.
He did it! He took two alphas at once! He could be their omega and–
The alpha behind him brings him out of his thoughts as he began a brutal pace. Fucking him as if his asshole had always been used to it.
Izuku moans, neither he or Denki have to move much with how roughly Katsuki fucked into the omega.
If they actually mated, they could do this all the time...
“Ka-Kacchan, slow down...” Izuku grunted from below, his fingers digging into Denki’s skin. He could feel the feral pace through the slick wall of the omega’s insides.
“Why?” The blond alpha growled, looking down at his mate over Denki’s shoulder. “He’s made for it. Look how good he takes it!”
Denki scratches at Izuku’s chest, his nails digging into the muscle as his ass gets torn up deliciously.
“Ah! Ngh! Mm!”
All the sounds coming out of him sound unintelligent, just like those raunchy omegas in porn. The room is spinning around him as his clit throbbed with need. A part of his body wishes he would have only taken one at a time. He could handle getting his ass nearly pulled out with every time Katsuki slipped his cock out.
But the majority of him was in the clouds. This was so much better than when the two blonds had first fucked.
A beefy arm wrapped around his shoulders, pulling up until it's tight around his throat, and a giggle erupts from him as he’s put in a constructing headlock. There was such a pleasure in having his breath shortened so well.
“Look at the little bitch, Deku... He’s all twitching from being–“ He thrusts in almost angrily, warranting moans from both of them. “Choked!”
Izuku growled from below, his patience wearing thin as he was left with the aftershocks of his mate’s rough fucking. He holds Denki’s thighs, keeping him still and his hips pushed up, a gush of slick making their skin slip against each other. The shriek of pleasure the omega gives riles both of the alphas up.
“You need to start moving.”
Denki can’t ignore the command, his twitching hips starting to grind and rock down on the two thick lengths inside of him.
He wanted to work hard—he wanted to be stuffed with cum. He wanted to be the best omega for these two amazing alphas.
“You’re doing some good. Taking us so fucking well.” Izuku moans for him. His own pace differentiating from his mate as he used the omega in his lap for his rambunctious mate.
Denki sobbed, his jaw shuddering as his clit was paid attention. He wasn’t going to last much longer.
And he doesn’t.
Denki’s voice silenced as his body shook uncontrollably, his cunt pulsating as he came from the two alpha's assault on his holes.
The two men stop, watching with amazement as the omega cums so helplessly. The waterfall of whimpers and whines have them in awe.
“I think... He wet himself...” Izuku mumbled, looking down at the liquid that poured out of Denki and onto the alpha's pelvis and thighs.
“He pissed?! Told you he was the perfect little bitch.” Katsuki snickered, his hands sliding down from the omega’s throat to hold him by the waist.
“But that’s not stopping me. ‘m so fuckin’ close...” He grunted, his movements starting up again—using his strength to make Denki grind down on both of them.
Izuku wasn’t far behind, the walls of Denki’s pussy constantly throbbing around him.
He’s the second one to cum. Their names on his tongue as he throws his head back on the pillows. He doesn’t bother pulling out—pumping the omega full.
Katsuki pulls out, cumming on the small of the omega’s back, marking his territory on the skin.
They were keeping him for sure. There was no way they were going to let this omega be wasted on any other alpha.
——Day 3——
Denki laid on his stomach, he felt like he was going to die. Izuku’s knot was just too big. Every muscle on his body ached, he could feel the throbbing soreness coming from his lower half. He hadn’t gotten up from the bed and he doubts he could even try to do so. Izuku sat next to him, a soothing hand rubbing from between his shoulder blades down his spine to trace along the dimples of the omega’s lower back.
“Kacchan is making you a sandwich with the meat from yesterday’s dinner.”
Denki lifted his head, an angry pout on his face. “How do you guys have so much energy?! That was exhausting!”
The alpha chuckled and bashfully smiled as he looked away. “I thought it was fun.”
"Fun..." Denki rolled his eyes, his head dropping back down on the pillows. “My ass really hurts!”
“Good,” Katsuki said as he entered the room. He walks in, pressing a kiss to Izuku's lips as a greeting. “Lucky that you didn’t tear.” He puts the plate on the bed, a cold bottle of water pressed against the omega’s cheek.
“Ah!” He shrieked as he flinched away. “Tear?! The one before me tore?”
Izuku and Katsuki grinned at each other.
“No, they only took us one at a time... That’s why we moved on.” Izuku started, rubbing his chin.
“I was talking about Deku’s ass.”
“Kacchan’s ass, too.”
Denki’s wide eyes blinked in realization—the image of the two alphas brutally fucking one another in the exact bed he was in. He flushed and adjusted slowly to sit up on his sore ass and crotch.
“You guys have to let me watch some time...”
Katsuki leaned in, an open mouth kiss on Denki’s jaw. “If you stay, you could watch anytime.”
“If you stay,” Izuku leaned in, kissing at his shoulder. “You can.”
The omega flushed and raised his hands, fluttering his hands to get the two alphas away from him warming skin. He couldn’t afford to get turned on so soon after getting his bits and pieces destroyed.
“O-Okay! Okay!” He sputtered. “Let me eat in peace.”
He spends the morning with Katsuki when Izuku was called into the city for an emergency mission.
He’s invited to the bath and he doesn’t know why he expected it to be innocent or nurturing. At least the blond alpha had the decency to slip his hard cock into his cunt rather than his ass. He holds onto the bathtub edge as he’s fucked from behind, hot hands on his hip dips.
Denki was picking up a pattern with the type of aggressor the alpha was. A heated hand sliding up his back to soon wrap around his throat, holding him still until Katsuki spilled inside of him. Barely pulling out enough to avoid knotting the omega in the tub.
He’s all but putty as he slouches on the couch later in the afternoon, his eyes half-lidded as sleep licks at him. He’s awoken a while later when soft kisses to his lips and cheeks, his eyes opening to see a grinning Izuku.
“I’m home...”
Denki hugs his shoulders, bringing him down onto the couch and his thighs are pushed up to his chest when Izuku sinks into him. Slow and sweet. He didn't get to come earlier or this time from getting fucked, but the alpha brings him over the edge for the day with his tongue. He almost eagerly accepts the cunt flavored kiss that Izuku presses against his mouth.
He goes back home to his lonely apartment after dinner and he lays on his bed, a heavy sigh leaving him. His body buzzing—phantom touches spreading over his muscles from the two alphas and he makes a decision.
Denki liked them and their dynamic. He knows he will fit in well there, he could be happy with them.
The two alphas aren’t all too surprised when they get a call to come to the omega’s apartment.
“I want the guest bedroom as a heat-room! You have to help me pack my things, too.”
Izuku and Katsuki grin, crowding the omega to kiss and nip at him. Whispering explicit and lewd things in his reddening ears, all the filthy things they were going to do to him once they all got settled at home.
They were going to bite, mark and burn their mark into his skin.
It's not like Denki was complaining; he was looking forward to it.