Chapter Text
Hey so this was a request and I have never written A/B/O before so I hope it’s ok but I just wanna put down some ground rules. No one has animal features like ears or claws or anything. Secondary genders are determined around the ages of 10-16 when someone will present. Male alpha’s have a penis however female alpha’s also can grow one (like it’s retractable? I’m not so sure but whatever but they can get other either females or omega’s pregnant) they have sent glands in the normal places someone would and when they get protective or angry they growl and have an increase in strength, those who whom their alpha voice can also use this to control or scare omega’s or beta’s. Beta’s basically stay the same as their first gender and just grow scent glands, if they are female they can get pregnant and if they are male they can get people pregnant. Omega female have a vagina, while male omega’s grow one (depending on the person they sometimes keep penis some don’t, but if they don’t the rest of their body stays exactly the same even testosterone levels so they don’t change significantly) all omega’s can get pregnant (unless they have a condition or have undergone a surgery not too). Omega’s have very sensitive scent glands and typically like either scenting their friends or being scented by their friends with their wrists. Omega’s have heats which are very similar to periods so hormone changes, cramps, bloating and other things (it is not purely sexual just their fertility cycle and female omega’s don’t have periods only heats beta females and alpha females have periods though). Finally all secondary genders realise emotion pheromones, however they don’t naturally smell of their pheromones, instead they only realise them when they are feeling very strong emotions such as panic, fear, sadness, protectiveness, anger and for some people they even realise pheromones when they are extremely happy. Omega’s pheromones are the most potent, while Alpha’s are the weakest.
Omega’s have a scent mark on their neck which other genders don’t have, this is the most sensitive part of their body. When an Omega is licked there or lightly bitten (like sexually) it feels nice however when an Omega is scratched , grabbed there to hard or bitten hard on his neck they go limb and are in immense pain. The omega lets out pain pheromones and begin whining unable to do anything but panic.
Packs, packs are basically a found family, you don’t choose your pack. When someone from a persons pack (even if they don’t know they are in the same pack) is realising scared, fear, panic or sadness pheromones the pack member smelling them immediately unconsciously realise protectiveness pheromones and their hearing improves no matter the secondary gender. This is typically how people find out they are pack members. However there are other ways.
Anyways E class is a pack but they don’t know yet. Anywho finally after that long introduction let’s start the actual fan fic shall we?
The entirety of E class were busy practicing their knife jabs with each other, well the entirety of E class apart from Karma. No one really was surprised though he had been skipping a lot more lessons than normal recently but when Nagisa asked him why he simply smiled creepily and laughed giving no other response.
A small conversation had burst out between the Terasaka gang.
“Hey guys we don’t know everyone’s secondary genders do we?” Okajima ponders aloud.
“I mean we know all the girls are alpha’s or beta’s and we know most of the boys genders.” Hazama responds.
“True, we don’t know Isogai’s, Sugino’s, Kimura’s or Karma’s though.” Yoshida points out.
“Oh I know that Sugino is a beta and Kimura is a beta too.” Muramatsu loudly says gaining some questioning looks from other members of the class.
“Isogai is an Alpha.” Itona states.
“Oh ok ok so we know everyone but Karma?” Okajima questions again.
“Yeah but does it really matter?” Takebayashi asks.
“No not really I was just wondering secondary genders don’t really matter I’m just curious.”
“Well Okajima looks like your gonna have to stay curious Nagisa says that Karma has never told anyone his gender.” Yoshida laughs.
“Damn well I guess it doesn’t matter.”
Hazama looks like she was about to say something when Karasuma interrupted them yelling more orders at the students.
All E class students (apart from Karma) started to practice a new technique that they were currently learning. After about ten minutes of practice a sharp tangy smell encompasses the pe field. Everyone’s hair immediately stands on end, protectiveness and panic settling deep in the bottom of their stomachs.
“Is that?” A female voice asks unable to finish her sentence.
“Someone’s in danger.” Karasuma pants out clearly panicking slightly. “Stay.”
Karasuma runs off into the woods where the scent is clearly coming from. Ignoring their teachers words, all of the students sprint after him sprinting faster than they ever had before into the woods.
No one mentions the fact that the scent they are smelling is clearly someone from their own pack.
No one mentions the fact that the scent seems oddly familiar for some reason, some think it smells similar to when something funny happens in class or when Takaoka had been fighting Nagisa. No one mentions the fact the smell is the same (just a bit more panicked) as someone in their class.
No one mentions the fact that the person releasing this smell is someone they all know, someone they all care for.
After around twenty seconds the group arrive at the scene.
Karma has tears in his eyes, his face twisted and contorted in apparent pain. The student is being held up by a man no one had ever seen before, the man is holding him up by his neck digging his finger nails deep into the teenagers skin, deep dark red blood is trickling out of the small crescent wounds on his neck.
“GET YOUR HANDS OFF OF HIM!” Karasuma growls out.
The man looks up clearly surprised that someone else is there. His green eyes widen significantly, as he lets karma go.
The teenager falls down attempting to land on his hands and knees but failing landing on his face slowly brining his hands up to his neck curling into himself trying to comfort him.
“I-“ the man starts.
“I Said Get The Fuck Away From Him.” Karasuma growls out once again this time much more frustration showing.
“I- y-y yes…” the cowardly man sprints away as fast as he can trying to put as much distance between himself and the mob of angry teenagers.
It doesn’t work. Terasaka, Sugino, Itona, Rio and Yada sprint after the man, they catch up to him after twenty seconds and hold him down forcing him to practically eat dirt. Teraska and Rio both take a punch at his face causing blood to spurt out from his nose.
Karasuma leaves his students to take the man down, knowing and trusting that they will be able to hold him down and keep him there. Instead the adult holds a hand out to the group of students behind him expressing to them wishing them to stay there and not interfere. The black haired man bends down in front of Karma releasing a calming pheromone unconsciously trying to help his student anyway he can.
Karma’s eyes slightly open and shyly make eye contact with his teacher. Karma’s pupils are dilated with fear and pain. Karasuma recognising this sits down properly holding both his hands out to Karma beckoning his student to get comfort.
Karma seems to think for a second, before crawling over to Karasuma practically climbing onto his lap and holding himself as close as possible to the warmth of his teacher. Karasuma brings his arms around Karma holding him to his chest, then he starts scenting the boys cheek glands with his wrists. Karma accepts the scents and starts nearly unconsciously starts scenting his teachers wrists back.
The rest of the class -who had not gone off and attacked the attacker- start calming themselves down some of them releasing calming and protective scents.
Chapter Text
Three minutes later Karma was still whimpering in Karasuma’s arms, the red haired student has some tears occasionally rolling down his cheeks which are slowly but surely soaking his teachers sleeves. The adult is still rubbing Karma’s back with his left hand and scenting his cheek with his right hand.
All of the other students -those who hadn’t gone to stop the attacker- had by now formed a circle around the pair, all of the teens have all stopped releasing protective pheromones and now are slowly releasing calming pheromones.
Suddenly a loud yelp from deeper in the woods causes several birds to fly off. Karasuma panicking and sensing danger, quickly signals to Nagisa to come over. The blue haired teen anxiously walks over clearly worried both about his friend and for what the house was.
“Nagisa please take Karma to our classroom I will be there in a minute ok?” It may sound like a question but all of the teens know that it is a command.
“Of course sir!” Nagisa responds.
The blue haired boy bends down and grabs hold of one of karma’s hands gently caressing it. Two mercury coloured eyes peek out from under the dark red ruffled up hair. Tears forming in the beds of his eyes Karma blinks at Nagisa not saying a word but conveying a question nun the less.
“Come on let’s go.” Nagisa said so quietly it was almost a whisper.
Karma didn’t nod or show any sign of acknowledgment, but Nagisa still took him away towards his classroom the rest of the class (apart from those with the man) follow close behind their weapons drawn and ready to fight if anything goes wrong. Soon they reach their classroom, Nagisa sits Karma down on the floor in the middle of the classroom all of the desks having been moved to the side by the teens. All of the teenagers sit down around him and slowly but surely form a cuddle pile karma in the centre of it finally having finally stopped releasing the distress scent and is now just occasionally whimpering into Nagisa’s neck.
Meanwhile at the same time Karasuma was running through the forest following the tracks his students had left, footprints, bits of tattered clothes and the most obvious, their scents. After a minute of sprinting the adult finally manages to catch up to his students.
Yada was standing off to the side with Sugino holding his shirt to her face, she obviously is injured but not too badly Karasuma assess. The teacher sees that Teraska, Rio and Itona are all trying their best to hold the man down and are mostly successful the only problem being that the man is managing to get hits off on Rio. Her head and back are being scratched at by his nails and are bleeding badly.
The black haired man sees red, anger overtakes his consciousness as he jumps forwards. Screams echo in his ears but he can’t do anything as anger fully envelops his mind.
Two minutes later Karasuma finally regains consciousness, his hands and face are stained in a thick deep red liquid some having already congealed in between his fingers. Looking down the man who had attacked his students face is a mush of ripped flesh, red splashes and rapidly paling flesh. Looking up and around the shocked and scared faces of his students have splashes of the same liquid on their cheeks.
“I- kids I am so sorry… I have never…. I’ve never let my anger get the best of me like that I’m so… I’m so sorry…” Karasuma whispers clearly in shock.
“It’s o- it’s ok sir, he deserved it… Sugino has gone to get Korosensei so we should… we should go.” Yada replies blood still dripping from her nose.
“You and Rio are both injured please let me.” Karasuma grabs a tissue from his pocket and hands it to Yada then gives a pity look at Rio. “Sorry Rio let’s get you back to the classroom to check over your injuries ok?”
“Sir I’m fine seriously let’s just get back to look after Karma!” Rio yells while walking away the others in tow.
“Ok but I’m still going to check over your injuries ok?”
“Yes sir I understand now come on!”
After six minutes the group of five finally gets back to the classroom. Walking inside the four teens are grabbed by their friends and pulled into the pile of children where as Karasuma walks to the staff room and meet eyes with Irina when she sees him her eyes light up.
“I was waiting for you to come back, but you went berserk didn’t you? You got so pissed that you just destroyed the person right?”
“Yeah I… I did.” Karasuma whispers.
“What even happened all I saw was the kids forming a snuggle pile? Or something like that I don’t know and Sugino running in saying that you were gonna kill someone then he smiled and said but he deserves it so explain to me.”
Karasuma sits down on his desk and sighs loudly as his head falls into his hands. His girlfriend stands up and walks over to behind him her hands start to rub and massage his shoulders. Calming him slightly.
“We were in the middle of PE when an omega distress scent washed over all of, the scent was Karma’s he had been attacked by an alpha who was about to bite into his neck.” Karasuma recounts.
“I see and what made you go ape shit?”
“Both the man hurting Karma, Yada and Rio.”
“There’s more to it than that isn’t there?”
“Yes… we, we are all of E class were a pack. Like an actual pack.”
“Hmm I see that makes sense why you would have gone ape shit.” Irina muses.
“I went ‘ape shit’ in-front of the kids… they all saw and I even… I even got blood on some of them.”
“Oh Tadaomi I know that they all understand, just by seeing Sugino’s anger I know that they all agree with your decision. None of them are upset at you for this I’m sure of it.”
“Thank you Irina… really.” Karasuma looks up at her and smiles gently.
“Come on Tadaomi why don’t we go to the teenager cuddle pile.” She grimaces. “Oh Jesus Christ that sound like the title of a porno.” She giggles.
“Wow Irina seriously.”
“I’m not wrong am I?”
“Why the hell would I know?”
“I don’t know Tada any who come on let’s go we should go make sure they are ok. And make sure karma will be ok, that was probably. Wait no this definitely would have been very traumatic for him and we need to make sure that he is going to handle this well ok?”
“Ok, I understand. I’m not the best with understanding and handling emotion will you be ok to make sure he’s handling it well?”
“Hmmm I’m just saying by your scent I think you did a great job looking after him earlier.”
“Hmm, I just did what my instincts told me too.”
“Well you did a great job.”
The pair smiled at each other while walking into the classroom. Once they step foot into the classroom both of their ankles are grabbed by the teens and they are dragged down into the cuddle pile and eventually end up in the centre of the pile. Karasuma has found Rio and has begins to sort out some of her still bleeding wounds while Irina has found Karma and is whispering to him trying to take care of him and ultimately failing because she soon realises that Karma is asleep and that she has been speaking to a very very deeply asleep child.