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@sakura3tring: 🧵#bkdk #ktdk #bakudeku, a/b/o,...

@sakura3tring
16 views Nov 20, 2025
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🧵#bkdk #ktdk #bakudeku, a/b/o, O!Izuku, A!Katsuki, angst, fluff, happy ending (eventually)
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When Izuku’s omega awoke, its first words were…

/That one./

Izuku jolted at the sudden voice in his mind. Small and quiet but definitely /there/.
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He was sitting at lunch with Aida and Todoroki, but had just glanced over at Katsuki, his spiky-haired alpha childhood friend, who was currently speaking with Kirishima and Kaminari.
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Heat rose in Izuku’s cheeks as he felt his nostrils flare. He could smell Katsuki from here, campfire smoke and burnt caramel and-

He shook his head slightly. /No! Absolutely NOT that one!/ he said to his omega frantically.
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He’d learned about this, he just needed to stay calm, and assert dominance. He’d been hoping he was just a beta but he’d prepared for this-

His omega whined pitifully. /But alpha smells so good-/
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Suddenly, a new scent reached Izuku’s nose.

Freshly fallen rain, mixed with something warm, and nutty…toasted vanilla.

/Is that…me??/ Izuku thought.
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/We smell so good for alpha!/ his Omega said cheerily.

That was a yes, then.

“Midoriya…” Todoroki said, his voice muffled slightly.
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Izuku turned to see his friend having his hand clasped over his nose and mouth.

“You should seek out Recovery Girl.” Todoroki said.

“I-” Izuku started, but then there was a new problem.

A low growl reached his ears.
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“Bakugou! Calm down, man!” Kirishima and Kaminari were holding onto Katsuki’s arms, and Katsuki was straining to get to…Izuku?

Izuku felt heat rising in his cheeks.

/Alpha wants us-/ his Omega said excitedly.
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/NO he does not./ Izuku interjected, to another whine.

/But he doe-/

“NOW, Midoriya,” Todoroki said, his voice strained. “Your scent-”
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Izuku could feel a lot of eyes on him.

A. Lot.

“Come now, Midoriya,” Iida said, grabbing him up by the arm. “I shall escort you,” the beta continued, guiding him away from all the prying eyes.
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Away from Katsuki, whose rumbling growls made the hair stand up on the back of Izuku's neck.

So powerful... No! He couldn't think like that! Izuku's face flushed slightly.
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“Th-thanks, Iida,” Izuku stammered.

“Not a problem,” Iida replied with a warm smile. “Let’s just get you some scent patches before something... unfortunate happens.”

Izuku huffed. “You’d think some alphas had better control,” he said.
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He’d thought Katsuki had better control than that, at least…

/Alpha WANTS us-/ his Omega tried to interject.

Izuku growled softly in frustration. /Why do you keep saying that?! Kacchan is our- MY friend! At BEST!/
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Finally, they reached Recovery Girl’s office.

/Didn’t you see him?/

“Ah, Midoriya, Iida, how can I help you?” Recovery Girl asked with a warm smile. Then her eyes widened slightly. “My my, that’s a strong scent.”
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/He just lost control!/ Izuku protested.

/Because he WANTS us./ his clearly stubborn Omega reasoned once again.

“I’ll let you take it from here, ma’am.” Iida replied, but Izuku barely heard him.
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Izuku scrunched his nose. /He does NOT-/

Recovery Girl tapped Izuku on the shoulder. “The first thing you need to learn, is to multitask while speaking with your Omega, dearie.” she said, as she ushered Izuku into her office and shut the door.
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Izuku’s face flushed. He knew that.

"I'm guessing you need some scent patches, then, dearie?" Recovery Girl asked, rummaging through her cupboards for some.

"U-um... yes, ma'am."
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/Why are we covering up our scent??/ his Omega questioned, whimpering. /Alpha won't be able to smell us!/

/That's exactly WHY! And quit calling him our- MY alpha! He's NOT./ Izuku snapped in protest.
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He wasn't expecting to be an omega in the first place, much less have one this stubborn!

He must've growled again, because Recovery Girl said, "It's best to befriend your Omega, you know. That way you can avoid any...incidences."
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Losses of control. If your secondary gender rebelled against you, you might find yourself in bed with an alpha you never meant to be with...or worse.

"Y-yes ma'am. Mine is just very.../stubborn./" Izuku said, a bit frustrated.
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"Well," Recovery Girl replied, "Just remember, your Omega is a part of you. It reflects who /you/ are, it isn't a separate entity, or a possession. It is /you/," she said, locating a box of scent patches. "Aha!"
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Izuku sighed. "But it wants-" he cut himself off. He couldn't say it out loud!

Recovery Girl came over with the box of scent patches. "This should last about a month. Do you know how to apply them?" she asked, tilting her head slightly as she handed it over.
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Izuku took the box and opened it.

"Y-yes ma'am." Izuku took one out and placed it on the back of his neck, and the overwhelming smell of rain and vanilla lessened until it was practically nonexistent.
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His omega whined in protest, but Izuku ignored it. /It's to keep me-/ He sighed inwardly.

Gotta make friends. /-US, safe./

/Alpha won't hurt us!/

/You don't know that./ Izuku replied firmly.
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A quiet whine, but no response.

"You'll want to take this, assuming you'd still like to attend classes?" Recovery girl offered a suppressant.

Izuku nodded quickly. "Y-yes ma'am." He quickly took the pill.

(TBC, tweet limit!)
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(while I write the next bit, RTs to help this thread get farther would be so helpful, tysm <33
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Recovery Girl patted his knee. "Good boy," she said, beaming.

Izuku's omega purred reluctantly at the praise, but Izuku bit his tongue.

He noticed Recovery Girl getting out a sheet of paper and a pen.
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"Wh-what's that for?" he asked. "I can go back to class-"

"It'll take a bit to kick in, your instincts will be heightened for a few hours but estrus should have been stopped." Recovery Girl replied, as she wrote and signed a note.

Izuku flushed at the word "estrus."
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"So...?" he asked.

"Give that to your homeroom teacher, and go rest up," Recovery Girl said.

Izuku nodded reluctantly. "Okay."
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Recovery Girl nodded in return, and passed him the box of patches. "Don't forget these!"

"Right..." Izuku replied, slipping them into his backpack, and taking the note from her.

He headed to his next class, which had already started.
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/You've been quiet,/ he said to his omega.

/.../ his omega didn't respond.

The absence of its voice was almost lonely, even though he'd had it barely an hour.
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The silence was filled only with the sound of Izuku's footsteps echoing off the hallway floor as he walked.

/...Why do we want to suppress our heat?/

/It's....inconvenient/ Izuku replied, his face flushing further.
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/Do we not want to be bred by our alpha?/

Izuku sighed aloud, a sharp exhale of frustration. /For the last time, Kacchan is NOT our alpha!/

Another whine, followed by silence.
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Make friends, make friends! /Sorry,/ Izuku apologized.

His omega perked up a little.

/He's still not our alpha. He's just a friend/ Izuku continued, and he felt his omega deflate.
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He'd reached the door of Aizawa's class. He could hear his teacher's voice as he lectured, and hesitated.

But he could smell Katsuki through the door, campfire smoke and burnt caramel.
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/ALPHA./ Izuku's omega suddenly rose up and before Izuku could do anything, he was pushing the door open.

He couldn't stop himself, and now everyone was staring. His cheeks turned red.

And then his eyes met Katsuki's.
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The contact was only a second, before Katsuki quickly looked away with a quiet huff.

His scent was overwhelming, and did it get...stronger?

He smelled so good...!
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"Midoriya. You're late." Aizawa said. "Either sit down, or-" he started, but then Izuku was walking quickly to him and sticking out his hand with the piece of paper.

He could feel Katsuki's eyes on him the whole way there.
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/Alpha is looking at us,/ Izuku's omega purred, and Izuku was so distracted he didn't even correct it.

He could hear a quiet growl coming from /somewhere/ in the room...

Aizawa took the piece of paper and read it over.
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"You're excused." Aizawa said simply. "Go home. Rest."

Izuku nodded and turned on his heel, feeling Katsuki's eyes on him the whole way out of the room.

/Alpha wants us~/ his omega crooned.
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Izuku sighed.

/He doesn't! Not like he'd ever-/

Where did THAT thought come from?!
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He did not like Katsuki like that. Nope. No way.

/But we DO/ his omega said.

/No, we don't!/ Izuku thought desperately, trying to tune it out.
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/Such a strong alpha, he could protect us./

Izuku huffed indignantly. /I don't need protecting!/

/Provide for us, then./ it reasoned.
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/I can do that for myself, too!/ Izuku insisted.

A pause, and Izuku hoped it had finally gone silent.

/...love us?/ his omega asked tentatively.
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Izuku laughed softly as he reached his dorm room, but for some reason, it came out sad.

Why was he sad?

/Not like that./ he replied. /He's just a friend./
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/But he stared at us.../

/My clothes are still scented./ Izuku replied, as he pushed open the door.

/But.../ it sounded dejected again.
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And somehow, Izuku felt the same, and he had no idea why. /He doesn't want us. Not really./ he insisted.

Suddenly, he caught sight of his bed, and all thoughts of Katsuki were put aside as he zeroed in.

It was plain, no frills, just some sheets and a pillow.
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Izuku had been so certain he was a beta.

Even though, over the years, he felt himself wanting cute, soft things. He'd ignored it.

He regretted it now, as his nest was NOT what he wanted.
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/NEST./ his omega keened in agreement. /Not comfy need more nest nest NEST!/

Ah. There were the increased instincts.
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Izuku started rearranging his bed, balling up blankets and clean shirts and anything he could reach, in a frenzy.

Desperately seeking comfort.
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Finally, after an intense few minutes, he settled into his makeshift nest as his omega whimpered quietly.

/Not enough!/

/I know, I know-/ Izuku replied.
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He was suffering too.

So much discomfort, his nest wasn't good enough.

But there was nothing else he could do, so he curled up, closed his eyes, and tried to rest, as his omega whined piteously.
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(TBC! Katsuki's POV next, at 860 followers :3)
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(also I'm new to a/b/o so comments are much appreciated :3)
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(guys- guys it's been AN HOUR AND A HALF- I'm wheezing- I'm not ready yet but I will write a short bit of Katsuki's POV now because I am a woman of my word. Or I at least try to be. hang tight!)
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///Katsuki's POV, back at the cafeteria (slight rewind)///
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Bakugou Katsuki /never/ lost control.

And yet, the last thing he'd scented was freshly fallen rain, and vanilla...

And the last thing he'd seen were those emerald eyes, widened with fear.
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And now he was coming to, growling and straining against- Who the fuck was touching him?!

"Oi, Bakugou, you with us?!"

That was Kirishima on his left.
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"Kacchan, would ya calm down?!"

...and that was Kaminari on his right.

Katsuki growled louder. "I'm /fine/, I'm back, would you two idiots LET ME GO?!"
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He sat down at the table and huffed as they let him go.

"Yo, what the heck happened?" Kaminari asked.

"Shut. It." Katsuki hissed, and he could smell the sour scent of Kaminari's omega's fear faintly through his scent patches.
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"Chill out, it's all good now." Kirishima said. "Let's just finish eating."

They ate in silence.

Katsuki's alpha included.
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But Katsuki had known his alpha long enough to know when it was embarrassed.

/Yo. Alpha. What the FUCK was that about?!/ Katsuki exclaimed.

/.../ a pause.
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And then Katsuki got the mental equivalent of a shrug.

His blood boiled. /Wtf you mean, 'shrug'?! Don't you shrug at me-/

/What did you want me to do? NOT go for the incredibly good-smelling omega?/ his alpha purred.
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Katsuki's eye twitched. /What./ But the memory of Izuku's scent nearly knocked the wind out of him.

/Attractive, too, you know./ Those eyes...

Oh, Katsuki HATED that. He shook his head to clear it. /What the FUCK? We don't like that one! You KNOW we don't like that one!/
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/The omega wants us./ his alpha replied nonchalantly/

/I'm sorry, no the fuck he does not./ Katsuki shot back.

/Well, we do like that one. For a bit now. We made up with him./ his alpha pointed out, making Katsuki huff.
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/Yeah, well not like THAT-/

/Are we certain of that?/ his alpha sounded smug.

Katsuki growled aloud. /Oh you better cut that out-/
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But damn, every time he thought about Izuku's scent, petrichor and toasted vanilla... he could feel his alpha flare.

/STOP./ Katsuki hissed.

/We want him./ his alpha insisted.
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/We. Do. NOT./

"You're mumbling, dude." Kirishima said through a mouthful of rice.

Katsuki's cheeks reddened. Great. Just GREAT. Now he was no better than the nerd that he definitely wasn't interested in.
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His alpha purred contentedly.

/Look, just don't do that again, okay?? You embarrassed us!/ Katsuki scolded.

/Fine, fine/ his alpha replied. /But if his scent comes through again, I do not think I will be able to resist../
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/Bull./

The mental equivalent of hands being thrown up in defeat. /Fine, fine. I shall try to restrain myself./

Katsuki huffed, and ate his lunch. Knowing his alpha, that was as good as he was going to get.
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-
(TBC!!! Whoops, wrote a full update XD next bit at 975 followers! (to buy myself time ^^''' so many of you are following tysm)

tysm for reading, and check out my highlights for more bkdk fics! 😁💜 I write tons and post practically everyday, so please consider following!! ^^)
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(also I absolutely adore getting comments/qrts 💜💜 and RTs to help this fic reach more readers are so very helpful as well and much appreciated 😁💜💜)
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and if you enjoy my writing, please consider leaving a tip? no pressure ofc! I'm saving up to be financially independent from my abusive parents.
ko-fi.com/sakura3tring
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IT'S BARELY BEEN AN HOUR-
I'm so sorry, I need to move up the goal again to buy myself time

at 2K, update, so sorry I was NOT expecting y'all to reach this this fast

love you all
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It has been. HALF AN HOUR-
y'all are amazing but. I need to sleep-
I promise I'll get to the update in like. 12 hours, tops.
I need to sleep 😭
but please keep following if you enjoy!! it means a lot 🥹💜
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Hello my loves!! slight delay on the update, I've had a BUSY as heck day ^^'
probably in a few hours, though!
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ok my loves, update time! :D
this one will be a bit short, however, bc today has been Stressful for Personal Reasons, 😥 I hope you can understand.
-
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///Izuku's POV///
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Izuku tossed and turned in his makeshift nest, feeling so very uncomfortable.
The sheets were too rough, the blanket too thin, and there being only one pillow was a crime.
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Izuku's omega whimpered as well, and for once since he presented earlier that day, the two agreed on something.
A soft knock at the door snapped Izuku back into the present.
"Deku?" it was Mina's voice.
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"C-coming" Izuku called out, untangling himself from the sheets and blankets and stumbling to the door.
He cracked it open, and found Mina, a fellow omega bonded to Kirishima, at the door.
She was holding a minky blanket in a soft shade of pink.
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Izuku's omega whined loudly at the sight. /WANT!/ it begged.
"I-is that for-" Izuku began.
Mina grinned. "Yup! I heard you presented, and figured you might like something for your nest!"
Izuku reached out and ran a hand over it. /So soft.../
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His omega purred loudly, and Izuku could feel the sound rumbling up through his chest and into his throat, making Mina giggle.

/NEED! Ours???/ his omega asked.

/Ours./ Izuku agreed with a soft smile, and took the blanket and rubbed it against his cheek.
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/Perfect.../

Mina grinned. "It's pretty big, do you think it's enough, or-"

/More?/ Izuku's omega perked up at the possibility of more, but Izuku shushed it.
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/This is plenty! I don't need any more./ he thought, slightly wishing it were in a more sensible shade, but the sensory relief the blanket brought him was undeniable.

"I don't think I need anything else," he said, but he knew his eyes had widened at the possibility of more.
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She was so nice to do this for him, bringing this from her own nest-! "Thank you so much, Mina," Izuku said, his voice breaking slightly and tearing up a little.

Mina winked. "No problem, Deku! Don't worry about it!"
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She left, and Izuku set to work adding the blanket to his nest.

He decided to make it the lining, since it was so very soft.

He curled up on top of it, his omega purring loudly.
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He smelled the faintest trace of Mina's scent, a warm but sharp combination of jasmine and oranges as he rubbed his cheek against the silky soft faux fur fabric.

But Mina must have spread the word, because soon, Izuku's nest was no longer empty.
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A bunch of the omegas in their class contributed something.

Sero gave a couple of patterned pillows that smelled faintly of cedar, and Uraraka gave an All Might plushy that smelled a bit like bubblegum.
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/Safe. Nest./ Izuku's omega said, still purring, and Izuku smiled softly in agreement.

/It's perfect./

Izuku's omega hadn't stopped purring since Mina had brought over the blanket.
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Izuku was just glad that it had stopped bringing up-

/Want our alpha's scent!/

He sighed, and felt a part of his gut clench at the memory of that strong combination of campfire smoke and burnt caramel.
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He wanted it too-

No he didn't! He shook his head.

/Omega, PLEASE. Kacchan isn't our alpha!/
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/Want him./ the omega whined.

/He doesn't want me!/ Izuku shot back, pulling a pillow over his head, even though he knew it wouldn't block out the sound.

/Alpha does too!/ the omega protested.
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/We've been OVER this, we smelled good because you woke up, that's ALL./ Izuku replied with a mental sigh.

/And you did not deny we want him that time!/ the omega pointed out smugly.

Izuku's cheeks heated. /I DON'T!/
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/We like his scent/

/So??/

/Want my alpha!/
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Izuku sat up. /Your alpha?/

His omega went silent.

/Hey, what do you mean, YOUR alpha?/ Izuku asked again.
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/.../ a pause.

/I am unsure/ the omega replied, its tone uncertain.

/He isn't ours, I don't want him, and he doesn't want me!/ Izuku protested. /He isn't your alpha/
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/But he is-!/

/How, then?/ Izuku asked.

/I do not know/ the omega replied, confused. /That scent.../
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It went silent again.

Izuku sighed.

What happened to the omega being a part of him? There was no way it was like him.
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And yet...

He kept thinking about Katsuki's eyes boring into the back of his neck.

/We want our alpha./ the omega said.
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/We can't./ Izuku said in return, gritting his teeth.

/Why?/

/We just. Can't./ and then Izuku tried to tune out its whining and whimpering as it was denied.
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Trying to sleep, in a nest with the scents of all who Izuku cared about...

...except one.
-
(TBC! goal tbd! tysm for reading 😁💜 make sure to follow to be notified of updates!)
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to buy myself time since y'all are like
MATERIALIZING OUT OF THE ETHER
I'm setting the update goal to 2.5K followers ^^'
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