Hear me out - Omega katsuki, a dragon born who was in love with his...

Omega katsuki, a dragon born who was in love with his dragon kirishima. While they were both deeply in love, the war forced mitsuki to marry katsuki off with the new heir of All might's kingdom, Izuku midoriya
Katsuki hated the marriage but he knew his
Katsuki hated his new life, he hated his tight clothes, hated his countless etiquettes, hated all the nobles and he also want to fucking hate his marriage but Izuku just makes it so fucking difficult
Izuku learnt katsuki's language before katsuki could know what Izuku even speaks, Izuku greets katsuki on the table everyday with flowers he himself picked from the garden. When katsuki throws that away, Izuku simply takes it as a invitation to present
Exactly one month into the marriage, Izuku knocked on katsuki's
Izuku was holding a herbal mix. He explained to katsuki that the nobles were pressurising him for an heir for long but recently even
After all katsuki wasn't marked, neither is he carrying izuku's child like he was fucking supposed to
Izuku humbly asked if he would allow Izuku to mate him with
Katsuki agreed, grumbling they should get on with it
Izuku looked nervous and anxious. He removed his clothes and folded
Katsuki laughed saying he probably won't notice anything
Izuku was stunned hearing that. Tears formed in his eyes. he groveled on the ground and apologised that katsuki's first time had to be with Izuku and not with someone katsuki actually loved. Izuku apologized that they had to be mated even
Katsuki had stayed frozen on the bed, listening to this rambling and realising that he was not the only victim here. Maybe Izuku too wanted to
Katsuki had hurriedly drank the herbal mixture that would induce his heat and greeted Izuku in bed
His alpha was even more restless now that his "mate" was "pregnant" with his child but this time, katsuki didn't turn down
When katsuki was 5 months pregnant, he received countless gifts from the people of his tribe
Katsuki pressed the the necklace against his nose, engulfing every last bit of scent while his hand rested on his belly.
Just to be sure nobody can see that necklace, he tossed it on fire
Katsuki had never loved anything or anyone like this before
Katsuki allowed him to hold the baby. And laughed when the great Izuku midoriya cried while holding a tiny human
For the first time,the alpha asked if he could scent katsuki, the child and Katsuki's nest. He allowed
Katsuki woke up at the sudden presence he felt in his room. A silhouette,a familiar smell
Kirishima
Part of katsuki wanted to run up and hug kirishima. Katsuki was so sure he had let go of his past,had moved on but now that kirishima was standing right Infront of him, katsuki
Kirishima apologied that it took him so long. He said he had been trying all these times but the castle is so hard to break though. Kirishima could only break though because of help from someone
Katsuki breathe in the scent. He had already given the kingdom a heir, if he fakes his death now, nobody will look for him, yes. His child will be taken care off too, Izuku had promised that
Suddenly the hallway got loud, sounds of footprints coming closer. They must have found out that there's a intruder
Katsuki thought he still loved kirishima, he was sure he still had feelings for him
Then why the reaction
Katsuki knows Izuku would find a better omega, katsuki knows his child will be taken care of then why did the thought of leaving made him sick? Why did the image of some omega touching HIS son made
What had changed? But katsuki still loved kirishima?
Katsuki's scream had woken the baby up. The little baby immediately started crying and throwing his arms around
Katsuki quickly picked up the baby, turning his back towards kirishima
Did he really?
Kirishima was right here, along with his old friends, his old life. He could just go back and pretend nothing of this ever happened
Was it Izuku? Or his love for his baby and his future? Is katsuki choosing to be a father and a mate than a lover.
Katsuki looked back at kirishima.He looked broken, shattered " go" he said in the softest voice he himself had ever heard
___
He sat down at the empty bed, picking his baby boy up "guess it's only me and you now" he booped his little nose " I promise I'll be the best papa out there"
Izuku turned quick towards the voice. Katsuki was here? "Kacchan" he gasped
Katsuki was sitting legs crossed at the far corner of room, Izuku didn't see him cause he didn't expect to see anyone
Katsuki looked away, feeling shameful for infidelity he almost commited
Izuku ran towards him and wrapped his arms around katsuki, engulfing him in tight hug "you're still here " he cried " I'm so happy"
Katsuki didn't expect such reaction. Regardless he tapped Izuku on the shoulder
"I'm choosing my family"
Katsuki stayed frozen on place, suddenly feeling guilty that he almost left Izuku alone, in this empty chambers with their tiny little baby
"I love you" Izuku planted a kiss on top of katsuki's head
"I love you so much kacchan "
" If you love me so much, stop trying to get rid of me " katsuki looked away " show me you love me instead"
Maybe one day, katsuki will love him but just as much
Heat rose on katsuki's face, making it cherry red
Did Izuku just kissed him?
Izuku pulled Katsuki back on the hug and the blond hid his face on Izuku's chest
He sniffed "I promise you kacchan, I'll love you like no other"
Katsuki wrapped his one arm around izuku's waist and other around the fussy baby on Izuku's arms
~~~
The end
He didn't wanted to stay away from his own child or let someone else raise him
Katsuki knew he could never go back to his old life the moment he held the baby for first time