Chapter Text
Izuku hadn't quite been expecting this when he had stumbled down the darkened hallways, down the stairs and into the kitchen in the dead of night, everyone else asleep but Izuku himself. Having been woken up parched so he had ventured down to the dorms kitchen to get a drink before heading back to bed.
In his sleepy state he had failed to realise the kitchen light was on, thus was taken back and quickly woken up by the sight that greeted him.
His homeroom teacher and pro hero Eraserhead, Aizawa Shouta, sat on the tiled kitchen floor and almost hunched in on himself panting and whimpering quietly, almost painfully.
almost.
From what Izuku could hear, it didn't sound painful, close but not quite there yet, was something wrong? Did a villain get in and attack his teacher before leaving? sparing a quick look around he realised that no, a villain didn't sneak in. Nothing was out of the ordinary, everything was pretty much as they left it this evening after the class all had dinner and cleaned up, except for the running sink.
Did they forget to turn the sink off? No Aizawa-Sensei must have turned it on, there was a half empty glass of water right next to it right above where his teacher lay huddled on the floor.
A slightly louder whimper and the sound of shuffling brought his attention back to his teacher but Izuku jumped slightly, letting out a quiet squeak in surprise to see Aizawa's usually dark eyes replaced by a blazing molten gold.
Staring at him like he was a piece of meat being hung in front of a starving man.
Izuku swallowed heavily upon noticing Aizawa subtly sniffing the air and letting out a cross between a growl and a whimper pass the tightly drawn lips of his teacher, maybe it was time to ask what was going on?
Taking a deep breath Izuku slowly stalked towards his teacher, doing his best to ignore the flare of heat and arousal festering in his gut at the sight of those golden eyes intensely trained onto him, watching his every move, he had never seen his teacher this focused or awake for anything before. To see him so awake and alive while staring at him was doing things to him he'd rather not name because of denial.
"A-Ah, Sensei? Are you okay? what's wrong?" It was probably dumb to ask if Aizawa was okay, the older man was clearly not but Izuku was nervous okay? he's not equip to deal with whatever is happening to his favourite teacher (All Might is his favourite hero yes but the man can barely teach) and the fact he could feel himself becoming more and more aroused the longer those eyes focused on him was not helping matters.
Aizawa seemed to be gritting his teeth, letting out a small growl as Izuku crouched down in front of him to rest his hand on his teachers forehead but quickly pulled it back. The man was boiling! Did he have a fever? A fever doesn't change your eye colour though does it? Maybe it does for non humans? But then why was Aizawa whimpering and growling? Why was he on the common rooms kitchen floor instead of in his onsite apartment? It must be a fever, why else would he be boiling hot and sweating buckets now that Izuku was close enough to see the wet sheen of sweat covering exposed skin and dampening the already dark nightshirt the older man wore at night.
"Quiet"
Izuku let out an 'Eep!' at the growled out word, he hadn't realised he had begun to mutter after checking his teachers temperature. Opening his mouth to ask again what's wrong Izuku was cut off this time by a whimper.
"Not...Not a fever"
Not a fever? Izuku's face scrunched up, confused and concerned. If it wasn't a fever then what was it? Maybe a different illness? Should he call recovery girl? Maybe not, it was the middle of the night after all.
"-ut.."
"What?" Izuku leaned closer, he hadn't caught whatever Aizawa had said, being too quiet for him to catch it while he had been fretting silently to himself. Reaching out to feel his head again Izuku's wrist was quickly snatched and he let out a yelp as he saw Aizawa lurch forward, grabbing him more firmly and tossing him over onto his back while the man moved to hover over him, pining him and his wrists above him to the tiled floor.
Izuku let out a groan, the floor was hard and cold, not exactly the comfiest place to be flipped onto. Gaining his bearing he opened his eyes and lost his breath all over again at the sheer hunger Aizawa was staring down at him with, panting in what seemed to be barely restrained want and need, lust and something else swirling deep in those molten eyes of his teachers.
His teacher was barely holding himself back against whatever was making him this way, Izuku felt like he would have been mauled and consumed if this was anyone else.
A quiet snort pulled him out of his head again, eyes snapping to focus onto his teacher who was giving him a tiny tiny smile of amusement through all that hunger, the edge of his lips slightly twitching up.
"I'm not going to literally eat you Midoriya, calm yourself"
Now Izuku would have calmed down, fairly easily too even with his teacher pinning him to the ground if it wasn't for the fact his teacher was panting like he ran a marathon, sweating like he just climbed the tallest mountain in one day and looking at him like he wants to devour him and make him scream his name at the top of his lungs.
Izuku didn't want to admit how much he wanted to scream his teachers name at the top of his lungs.
Instead Izuku shuffled a little, trying to ignore how much he liked being pinned and his already blazing arousal, cock stirring to life in his shorts that he hoped Aizawa didn't notice but no matter how much he tried he couldn't take his eyes away from Aizawa's eyes.
His teacher seemed to enjoy watching him squirm while maintaining eye contact though, hearing a quiet purr come from him as he watched before the older man leaned down to press his face against Izuku's neck. Izuku stilled, not knowing what to expect but it certainly wasn't the sound of Aizawa deeply breathing in and letting it all out with a hard groan, Izuku didn't shiver at the feeling of hot air against his neck, nope, or the sound of that groan going straight to his cock, absolutely not.
"Fuck...So fertile, so ripe...perfect, i knew you'd be the perfect one, the only one." Aizawa groaned into his neck, panting as he continued to breathe in Izuku's scent? Izuku was confused but highly aroused by what's going on no matter how much he wanted to deny it.
Swallowing heavily Izuku asked again, although he was starting to realise what was wrong now, "Sensei? What's going on?" his voice shook slightly, nervous but determined to know.
"Rut...its mating season" was his answer, mumbled, whimpered? groaned? into where Aizawa had firmly planted his face against his neck, acting like he couldn't get enough of Izuku's scent, like he was drunk off of it.
oh..
oh...
Izuku wanted to slap himself, why didn't he realise it sooner? Aizawa was a dragon, or at least part dragon. Izuku wasn't sure just how much of one he was but the point was, Dragon hybrids experience ruts, heats, mating cycles whatever you wanted to call them. They were pretty self explanatory but the intensity of them varied from hybrid to hybrid but they all kept the same condition to them.
They only happened if there compatible and suitable potential mates around.
It was something to do with their biology, Izuku didn't look that far into it to be honest, so he didn't know why that was the case.
What confused him was why was his teacher experiencing a rut, why now? he must have a partner at home to help deal with this? The thought that Aizawa had someone to help with them made him a bit bitter and sad but he ignored it.
Until Aizawa's words finally registered in his head.
Fertile, ripe, perfect.
directed at Izuku.
Plus the man was basically trying to merge himself into Izuku, if that wasn't a big enough clue that he caused this then he didn't know what was.
Aizawa must have sensed or guessed what was running through his head, since the man reluctantly pulled back to look at Izuku in the face, staring into his green eyes with his gold ones.
Izuku noted the mans pupils were blown wide, but still small enough to clearly see the ring of gold.
"If it wasn't obvious enough, yes. You caused this, i haven't experienced one before, not in my 30 years of living. I never came across a mate that was compatible with me, so can you imagine how shocked i was when you walked into U.A, all nervous and excited for the extrance exam, that i could tell immediately you were the one? even when i hadn't met you face to face until the first offical day of school? I could tell, even through the viewing screens watching the exam take place. That feeling only solidified over time"
By this point, Aizawa had leaned down until he was barely hovering over Izuku, barely resting any weight on him at all, lips barely touching as he continued to talk, Izuku has never wanted to close a gap between someone so much, he was so close.
"Everyday, i've had to hold myself back from claiming you, pulling you to the side, keeping you back after class to ravage you and claim you for myself. I've had to stop myself multiple times from pulling you against me and marking you up with bite marks and my scent to ward off anyone else. Do you know how hard that is? It's in my nature to claim what's mine, my nature to claim my mate as soon as i find them. But i held back, i didn't want to scare you off, destroy the trust in me you slowly built up, i didn't know if you knew anything about dragon hybrids after all. We're scary and can be rough and we can lose control, i didn't and don't won't to hurt you."
Izuku listened quietly, breath quietly shuddering out him in excited pants, he almost didn't want to believe what he was hearing at all, it was too good to be true after all.
"I knew i'd be experiencing a rut for the first time sometime this year, but i didn't know exactly when. I never kept track of the mating season, thinking i'd never get to experience it anyway so what was the point? So i was rather thrown off balance a few minutes ago when i was just getting something to drink before working on assignments for the night. Do you know how surprised i was to suddenly feel off balance? literally? I feel like i'm in a desert, i'm so fucking hot, my stomach feels so heavy and i need you so fucking badly Midoriya, i want to pound you into the floor and make you mine"
As soon as Aizawa finished, growling out the word 'mine'. Izuku pushed his face forward to connect their lips, kissing Aizawa deeply and the man returned it immediately, desperately as he growled against his lips and plunged his tongue into Izuku's mouth to start exploring and claim his mouth immediately.
Izuku moaned at the feeling, wrapping his arms around Aizawa's neck to pull him closer and to card his fingers through dark silky hair, he's always wanted to feel what Aizawa's hair felt like. he hadn't thought it would feel so soft and fluffy though.
He had completely lost the battle of dominance, letting Aizawa roam his mouth freely as they kissed, deep groans and growls coming from the older man as he finally took what he's so desperately wanted since the start of the year. Izuku didn't mind though, content with the feeling of that tongue practically down his throat.
They had to pull apart sometime though, when they did Izuku was panting hard, trying to catch his breath back while Aizawa started to look much more desperate then earlier, already pushing his face back into Izuku's neck but this time to lick and bite all over his skin. Izuku just moaned and tilted his head back to give him more room, tightening his hold in his hair, Aizawa must be falling into his rut properly now that he had Izuku's consent, he didn't quite understand everything that came with the rut though.
Maybe he should ask? First things first though.
"Sensei, can we move somewhere else? the kitchen floor isn't the comfiest for this" Izuku moaned, feeling the man bite his jaw gently as he tugged the black locks slightly.
"Agreed" Aizawa sighed, licking the bite mark to sooth it before leaning back and rolling off of Izuku. Quickly standing up he picked Izuku up in his arms, strong enough to lift the teenager easily as he practically jogged out of the kitchen.
Izuku held on tightly, not quite expecting to be lifted so easily, he was just basically all muscle after all and not the lightest person in the world.
"Where are we going?" Izuku asked as they were up the staircase in no time, trying to remain calm and not freak out over what's going to happen. He was going to have sex with his teacher after all, or his mate?
"My room, to my nest" Aizawa replied, he didn't know if he was out of breath from basically running with Izuku in his arms or it was the rut, probably the rut.
They were going to his nest? his bed? Izuku blushed and hid his face in Aizawa's neck, he hadn't been in his teachers room before, why would he? he had no reason to but he never expected his first time in there would be because he's going to get fucked into the mattress, not at all.
"And Izuku?"
Hearing his first name come from his teacher's lips, Izuku looked up instantly, not minding in the slightest. It felt natural falling past Aizawa's lips, like he's been calling him Izuku the entire time of knowing him instead of 'Midoriya'
"Y-Yes Sensei?"
"Call me Shouta"
Shouta really hadn't been expecting his night to go like this, he had just been planning on working on his class's submitted assignments throughout the night, no doubt getting frustrated over Kaminari or Ashido's submitted work that somehow made sense but was complete nonsense at the same time, reading Midor- Izuku's more pages then required work or reading through Bakugou's, littered in curse words.
Not this.
Never in all his years of living did Shouta think he'd find his mate, or find out that mate was his student, Midoriya Izuku no less. The problem child, but he was his problem child and he always has been, he had always been protective over him and now he had even more reason to be.
Call him possessive, you can sue him.
Shouta was hovering over Izuku again, the young boy naked and spread out in his nest, covers and blankets bunched up to make a comfortable bedding around and under them. They mostly smelled like Shouta but after this there would be a few of Izuku's items to it, making it smell like both of them. Shouta had never really noticed just how lonely his nest felt with just his scent, not until he realised Izuku was his mate and compatible with him, he had yearned for him to be by his side.
And now he had him.
Shouta was also naked, having practically ripped his own clothes off in his haste to get undressed, it didn't matter though. He'll just buy more later on and give him a reason to spoil Izuku with goodies at the same time, he was going to lavish and spoil him now that he had him.
As he poured lube onto his hand, warming the substance up between his fingers, he noticed with a smug smirk that Izuku was transfixed onto him. Staring in awe at all of Shouta's patches of obsidian scales. Shouta had scales running down his forearms, his shoulders, the back of his neck, the top part of his back, his ribs and waist, his thighs and ankles, and the most noticeable when his hair was tied back was the small patches of scales running down the sides of his neck, usually hidden by his capture weapon and long hair.
And maybe some small scales on his cheeks, but they were basically hidden by his hair as well.
Not many people knew he had scales, as they were mostly covered up by his clothing and hair, so while he was a bit smug about it Izuku's look of absolute awe was making his feel a bit flustered. They were just scales after all but his mate was looking at them like they were the most beautiful thing he'd ever seen.
Maybe they were.
Shouta smiled a little as he pushed Izuku's legs apart, exposing that little puckered hole that twitched in anticipation when he gently circled his lubed finger on the entrance. Maybe he should let Izuku see his scales during the day, on a sunny morning. Maybe Izuku will notice the small red tint his scales get when hit by sunlight?
Gently and ever so slowly, Shouta pushed his finger inside to start prepping Izuku, he desperately wanted to bury himself inside his little mate and just ravage Izuku but he still had enough sense in him to start slow during prepping, rut or not he was going to go slowly first.
He had to prep Izuku enough to be able to take both of his cocks after all.
Izuku had insisted on taking both and Shouta didn't have it in him to refuse, he had to use both at some point tonight anyway.
Hearing a small moan, Shouta smiled and kissed Izuku's head once he found the teens prostate, gently messing and playing with the spot as he pushed another finger inside. Izuku's moans and whimpers were going straight to his cocks, making them jump and twitch, leaking copious amounts of precum everywhere.
"You sure you want both?" Shouta asked again, curling his fingers just right and getting a sweet sweet moan as a reward.
"Yes, Yes i want both! I can take them" Izuku moaned, clutching Shouta's shoulders tightly, gripping the obsidian scales.
Shouta chuckled,pushing another finger inside to scissor and curl his fingers in all sorts of directions, stretching him out. "Of course you can, i'm just making sure. Do you know what's going to happen Izuku? Do you know what i want and will do to you?"
Izuku shook his head, making Shouta grin and pull his fingers out with a wet 'pop!', he couldn't wait any longer, Izuku was stretched enough by now and he wanted in, now.
Pushing Izuku's legs forwards Shouta bent Izuku in half, leaning forwards and down as he rested them on his shoulders. Pushing Izuku into a mating press position as he slowly pushed his first cock into him, testing the waters. This position would allow Shouta to go the deepest he could go, would allow Shouta to fuck Izuku the hardest. He groaned at the tight heat enveloping him, constricting around him like it was trying to pull him deeper and deeper inside. God Izuku was so fucking hot! So hot and wet and tight around him, Shouta was fairly big too. Even for a dragon, both his cocks being around 10 inches and rather thick too. Izuku felt so tight around him, like he was stretched to his limits already and he only had one of his cocks inside.
Groaning, Shouta held himself up by planting his hands down besides Izuku's head, having throan it back to wail at just how big Shouta was inside him. He loved that sound coming out of him, Shouta wanted to hear him do it again and again and again.
He's glad his room is soundproofed.
"Fuck.." Shouta groaned, letting his head hang down as he panted, he had to hold himself back, he needed to wait for Izuku to adjust to his size before he moved. He wasn't planning on adding his second cock inside yet, wanting to fuck him open a bit more first but Izuku's heat around him was making it so hard. His insides were screaming at him to just take him, pound away and fill Izuku up to the brim already, to make him his! His rut was only fueling those inner desires and he just wanted to let go so badly.
He needs to wait, he's waited this long, he can wait a bit more.
His stomach felt so heavy, like he'd eaten a full breakfast only to eat even more a few minutes after, he felt like he'd swallowed a watermelon. Shouta knew without having to feel it his stomach was taut and tight, like it was bulging out with too much food but Shouta knew what the feeling really was.
He may not have bothered to look up when mating season was, but he certainly knew what a rut did to you.
His stomach, or abdomen, was full of eggs.
Eggs that he was going to pump into Izuku, fill him up with them and breed him.
Fuck just the thought of breeding his little mate had him going, groaning and growling as he's not able to wait any longer.
Pulling back slowly until just his tip remained inside, Shouta thrust forward and slammed into Izuku. Izuku yelped and moaned, Shouta already hit so deep inside, already rubbing up against Izuku's prostate.
Shouta gave Izuku a feral grin and started pounding.
"S-Shouta!" Izuku moaned, fingers scrabbling at Shouta's scaled skin as he pounded into him deeply, roughly, evidently causing sparks and fireworks to fly across Izuku's skin as the young male moaned and whimpered loudly.
It made Shouta purr inside, to see his mate feeling so good because of him.
Shouta wanted more.
Pulling back and stopping, Shouta lined up his second cock with his first one, giving Izuku a little break and to realise what was happening before he thrust forward.
Sheathing both his cocks inside Izuku's tight, tighter hole in one thrust.
Izuku wailed.
"F-Fuck, Shouta! Shouta Shouta Shouta!" Izuku sobbed, hole stretched so tightly around Shouta that it probably nearly hurt but Shouta had no doubt about it Izuku felt so good, he certainly did. He had to grit his teeth to stop himself from roaring and just fucking Izuku into the mattress right away, he could feel the base of his cocks starting to swell a little, he just felt that good! He had to hold back though, he couldn't cum so soon.
"Oh that's good my little dragon, taking me so fucking well aren't you? You're so fucking tight Izuku, so tight around me i feel like you won't be able to take my knots but i know you will, you'll be able to take them like a good little boy won't you?" Shouta purred deeply, chest rumbling in satisfaction as Izuku hastily nodded. Not even questioning the knot part, Shouta wondered if Izuku was so fucked out of his head just by taking both of his cocks that he couldn't question it?
The thought made him groan while feeling smug.
The best part hasn't even come yet.
Slowly, Shouta started to thrust again, building up speed and roughness the longer he went until he was just fucking Izuku right into the mattress. Izuku was howling and wailing, sobbing in ecstasy and chanting "It's too much! Shouta! Too much!" and "More more more!"
Shouta felt like he was going to go fucking feral.
"More? you want more? I'll give you more, you wanna know what i'll give you Izuku? I'll give you my knots, you'll take them won't you? Take them like a good boy as i plug you up and fill you with so much cum you'll be bursting with it, i'd be keeping it all plugged up inside you with nowhere to escape. You want that?" Shouta practically snarled, his dragon and rut taking over as he gave into what he's wanted to do since the start of the year, somehow fucking to Izuku harder as the teen yelled and nodded.
"Yes! Please! Fill me up! Fill me up please Shouta!" Izuku sobbed, eyes cloudy and glazed as he gazed up into Shouta's own feral ones.
"I'll fill you up alright, You want to know what else i'll fill you up with besides cum Izuku?" He growled, feeling his knots starting to inflate and get bigger, he knew Izuku could feel them too, just on the brink of tying them together. Shouta was making sure he was deeply thrusting into Izuku, keeping himself plunged as deep as he could go as he swelled and locked them together, stretched Izuku's abused rim as far as it could stretch with both cocks and knots inside the young boy.
"What Shouta what!?" Izuku keened, feeling his body spasm and on the bring of orgasm at the feeling of being stretched beyond his limits but it felt so good! so fucking good!
Grinning, Shouta leaned down to Izuku's ear, nipping and biting the soft flesh with his sharpened teeth, "Eggs, i'm going to breed you full of eggs Izuku. I'll fuck my eggs so deep into you and breed you so much theres no way they won't take. I'm going to impregnate you with them, fill you up so much cum afterwards."
Shouta knew Izuku was gone after that.
Izuku wailed loudly, body tensing and arching as much as he could in their position, unintentionally pushing Shouta even deeper into him as the boy spilled all over their stomachs and chest, the orgasm constricting around Shouta and making the man push as deep as he could as his knots inflated to their full size, tying and locking them together tightly.
Izuku panted as he went limp, Shouta leaned up enough to rest his forehead against Izuku's, panting himself and delirious with lust as he started giving small little ruts into Izuku's heat, making the young boy moan weakly and open tired and glazed eyes to look into Shouta's questionably, "You didn't cum?"
His voice was so weak, it would have made Shouta's heart constrict and wonder who hurt him and made him sound like that if it wasn't for the fact Shouta knew it was from the brutal fucking he just had.
Shouta grinned, licking his lips.
"Oh don't worry my little dragon, I will, right after the eggs have been deposited"
Izuku looked confused, but squeaked and moaned when Shouta tightly closed his eyes, saying a strained "Here they come".
Shouta's biology was fucked up and he'd never understand how it worked, but he could feel the first egg travel down inside him, down his cock, making it expand bigger and pushing against Izuku's walls, stretching the boy impossibly tighter. Shouta was fairly impressed at just how much he could stretch but he couldn't focus on that right now, his breath felt like it's been punched out of his gut as he laid the first egg inside Izuku's tight walls, it felt weird but so fucking good laying it. His eyes were tightly closed and his mouth remained open widely, panting harshly against Izuku's lips. He could feel the second one coming already! He didn't know how many he had to lay but it felt like only 2 or 3.
Shouta groaned and whimpered, feeling the second egg travel down to follow the first, they felt big but he could only imagine they felt bigger inside Izuku's tight walls. The third started traveling down just as the second one pushed itself out of him and into Izuku, settling itself deep and pushing the first one up a bit, settling snug against the warm wet walls of Izuku.
Shouta was only vaguely aware of the sharp nails digging into his arms, if it wasn't for his scales he had no doubt about it he'd be bleeding.
"Fuck, fuck it feels good. So good..." Shouta whimpered, leaning down to kiss Izuku desperately, sloppily as he nipped at his lips, feeling the third and biggest egg move down and push itself into Izuku with a little difficulty, popping into Izuku and pushing the other two deeper into Izuku's walls just because of how big it was compared to the other two. Shouta groaned, he knew that was the last one but he continued to buck gently, fucking the eggs deeper before his cocks twitched and pulsed before he finally came, cum gushing out of them as he spilled so much cum into Izuku, filling him up to the brim and making his belly bloat more, rounding itself out.
Izuku weakly whimpered against his lips at the feeling, spilling over them again in a smaller orgasm compared to his first one, getting off to the feeling alone.
Shouta gently flopped down onto Izuku, keeping most of his weight off his little mate before letting his legs down off his shoulders and gently rolling them onto their sides, facing each other so they were more comfortable while locked together.
Regaining his breath, he wrapped his arms around Izuku and pulled him close, he was still filling Izuku up with cum but it was a steady stream, slowly slowing down as he emptied himself out inside him.
Those eggs were definitely fertilized.
Shouta's stroked Izuku's green hair, letting a gentle and deep rumble emit from his chest, helping both of them calm down from their highs as they regained their bearings.
"Talk to me little dragon, how are you feeling?"
Izuku's quietly mewled, snuggling deeper into Shouta's embrace, "Good....Sore, but good."
"That's good." Shouta mumbled, softly kissing Izuku's hair as he stroked the soft curls.
They stayed in that comfortable silence for a while, just cuddling each other and basking in the afterglow. Shouta was close to dozing off, sated and warm with his mate by his side.
"Shouta?"
"Hm?" He mumbled sleepily, nuzzling Izuku's hair.
"Why do you suddenly have a tail, horns and wings?"
Wait what.
It was only now that Shouta realised the quiet ache coming from his left side, the side he was lying on and the noticeable weight behind him that was obviously curled around him and Izuku, and the extra fucking addition to his head.
"What the fuck!"
Izuku started laughing as he gently pet the big black tail wrapped around him.
As the week progressed, Izuku realised that Shouta's rut wouldn't end there.
Oh no.
In order for the eggs to remain fertilized, especially since Izuku was a male, Shouta had to keep pumping him full of cum every few hours to give them the maximum possible chance of them taking. Of course Shouta didn't do this until he was sure Izuku actually wanted to keep the eggs and stay impregnated with them, since he didn't actually ask before hand about impregnating the teen but Izuku was 100% okay with it, besides, he had grown attached to the eggs after waking up after their impromptu mating session.
He couldn't even think about parting with them.
No matter how sudden parenthood felt, he was ready for them.
Shouta had explained how it worked, saying the eggs took DNA from both of them, from Shouta's cum and the DNA inside Izuku. It's what allowed Izuku to carry them and make them his, the eggs wouldn't grow a baby inside them with just Shouta, it needed both of their DNA and worked for both men and female partners.
It made Izuku's head spin just thinking about the crazy and what should be impossible biology.
Shouta thought it was crazy too and he's the hybrid!
Izuku never thought he'd have kids especially at this age, but biological kids between him and Shouta? That's something that only happens in dreams.
Hurrah for dragon hybrid biology.
Back to the topic though, because Shout had to pump him full of cum every few hours. It meant they had crazy amounts of sex and not just because of the rut, Shouta was just horny for him in general apparently. They fucked everywhere they could, everywhere. On any flat surface they could find that had enough privacy, hell they even fucked in Shouta's classroom after school!
Izuku was constantly sore but he just couldn't get enough, whether that be hormones or just his sex drive, he always wanted Shouta.
And Shouta always wanted him.
They also found out that Shouta's Tail, Horns and Wings can come out when he loses control, or if he brought them out voluntarily, which Shouta had never done before because he didn't know he had them. Izuku felt like laughing again, but now they knew why he sprouted them, his orgasm was so strong he brought them out on accident while filling Izuku full of eggs.
Speaking of which.
Izuku's ever so thankful Dragon hybrids and students don't get into trouble if they're in a relationship, as long as the student or Teacher is the mate to the hybrid, they're allowed to continue it. Izuku felt like he was going to pass out and die when him and Shouta were confronted by Nezu and the other teachers, thinking he was going to get expelled and Shouta lose his jobs. He'd never felt so relieved to be wrong, Nezu certainly took joy in his panic though before revealing it was A-Okay.
Izuku did have to put a hold on his physical hero training though, since he chose to keep the eggs, they couldn't risk them getting destroyed or broken inside him after all.
He'd never felt so embarrassed before, Present Mic had looked smug finding out but All Might looked like he had just seen a ghost while the rest of the teachers told both him and Shouta the risks of what they were doing.
Turns out Present Mic looked smug because he knew the entire time Izuku was Shouta's mate, the man himself was Shouta's pack mate (Basically Shouta's brother, not biologically of course but Shouta's dragon claimed him as his brother and Mic will always find it funny) so Shouta told him everything.
All Might didn't seem to mind but it certainly sent Izuku into a frenzy thinking the man was disappointed. All Might was just worried about how it happened, also giving him permission to tell Shouta about One For All.
And oh boy that was a hell of a conversation between the two.
"Kaminari, stop whispering to Ashido and focus on your work"
Shouta sighed, catching Kaminari distracting himself and Ashido from working again, sometimes he wondered how they ever got stuff done but then he remembered he didn't really care as long as they kept working.
He was tired, much more then lately because of his ongoing rut but he still had jobs to do, so no matter how much he wanted to lie down and cuddle Izuku in their much more bigger nest until the end of time, he needed to work. And that meant teaching 1-A, which meant dealing with his students that cause chaos all the time, dealing with Bakugou's constant swearing and the over all loudness you get from teenagers.
The only one actually being calm and quiet, doing his work right now was actually Izuku.
He'd smile at the irony, the problem child being the only non problem student if it wasn't for the fact he knew Izuku was not calm, quiet maybe, but not calm.
His little mate shifted and squirmed every few minutes, their eggs constantly pressing against his prostate now because of how big they were getting. The eggs had grown quite a bit over the week, which was good. It meant their combined DNA was taking and keeping them fertilized, it made Shouta's heart warm and make it race.
Izuku will be carrying the eggs until the end of the mating season, just 3 more weeks and they'l have their babies. Shouta never thought he'd be excited about having his own kids, but he was now. He couldn't wait to spoil his new family.
Shouta watched Izuku continue to squirm and struggle to contain moans, quietly panting to himself as he continued to work. It was fun to watch, it made Shouta feel smug knowing he was doing that without actually doing anything. Once class lets out for the day he's going to take Izuku home and slowly and gently fuck him while they watch films, neither going to pay attention to them.
Humming quietly, Shouta looked at the time and counted down the seconds.
5...
4...
3...
2...
1...
The bell rang out as Shouta stood up, "Alright, pack your things away and get out. I expect to see the homework on my desk by tuesday next week and if you haven't finished it by then you'll serve detention with Midnight."
He watched his class pack away their things and stand up to leave, Shouta let a small smile cross his face as he looked at Izuku, "Izuku, stay behind for a bit won't you?"
Izuku nodded, flustered and red but smiling as he sad back down in his seat. The rest of his class gave their own smiles (or huffs, in Bakugou's case) as they headed out, knowing full well about their relationship by now and okay with it.
As long as he doesn't hurt Izuku though, Shouta's never been threatened by 19 students at once before and actually felt threatened.
Once they were alone, Shouta walked to Izuku's desk and leaned down to kiss his lips gently, chest rumbling smoothly as he caressed Izuku's stomach, "I hope they weren't too much of a bother, let's head home and i'll take care of you okay little dragon?"
"Can you bring out your wings and tail again? I like being wrapped around in them" Izuku asked innocently, smiling as Shouta grumbled but agreed as he lifted Izuku up into his arms, Izuku held onto his bag tightly, humming happily but still blushing, Excited for the future to come.