"i'm gonna go insane", you looked from osamu to atsumu to your brother.
kiyoomi adjusted the collar of his shirt, flustered at being caught. atsumu was a little less fazed.
osamu hadn't realised that he was still holding you close and now it suddenly dawned on the four of you how fucked this situation was.
"everyone...", it was you who broke the silence, taking samu's hand off of you half heartedly, "...sit down"
there were murmurs of agreement and now all four of you were sitting down. osamu and you on the bed and the other two on the couch opposite you.
"you two first", you mediated, pointing to your brother and atsumu, "how? when?"
"a...", they looked at each other and back at you, "a while now."
"fuck off, that's so vague", osamu snapped, "be clear"
"it's none of your business", atsumu snapped right back, "why do you care?"
"atsu...", kiyoomi reached over for his hand like it was second nature, intertwining their fingers, "calm down"
it was absolutely insane to see how the usually self-righteous and petty atsumu immediately obeyed, not to mention the fact that they seemed so physically comfortable around each other.
and then atsumu spoke, "since high school"
kiyoomi sakusa realised too early in life that running a multibillion dollar company was not his forte or his ultimate goal.
he had an interest in cars and motorsport since he could walk. his father, a big fan of the field himself and equipped with all the resources to finance him, supported him every chance he could.
his mother, the mayumi sakusa, disapproved of him taking up the sport as anything more than an extracurricular.
there was a lot of academic pressure on him, growing up. him and his twin sister- tori, were subject to expectations that never seemed to stop increasing.
and to make matters worse, the first friend he made on the first day of pre-school was the boy he was supposed to consider- in the near future- his biggest rival.
atsumu miya.
a friendship that continued from when he was four to when he was fourteen.
kiyoomi entered karting races when he was six. every other weekend, he'd go to local racetracks with his dad and enter a new race.
there was nothing better than knowing that he was good at something that he actually liked. he found that while he may not meet his mother's expectations on academics, he progressed leaps and bounds in sport.
surprisingly though, one of those weekends, atsumu joined him. well atsumu and his mom, who was cheering him on.
the miyas' mother was a very kind hearted woman. stunning. despite not being born into a rich family, she fitted into tokyo's high society reasonably naturally.
kiyoomi's dad was a sort of counterpart of her, and he really could care less about the long standing feud between the families.
so he let the friendship between kiyoomi and atsumu prosper. because they were just kids after all. enmity had no place in their lives for the moment.
that weekend, kiyoomi beat atsumu by a large margin- owing to his natural talent- and while it made atsumu a little pouty, he was happy enough to know he'd competed with his friend. because they were kids.
that weekend gave rise to several other such weekends- the race followed by lunch somewhere close by- until the night that the miyas' mom fell sick.
racing weekends reduced after that. atsumu's somewhat short lived motorsport career came to an end. and that was probably okay because he wasn't interested in the sport anyway, he was interested in kiyoomi's company.

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𝐅𝐈𝐒𝐒𝐈𝐎𝐍: 𝐦𝐢𝐲𝐚 𝐨𝐬𝐚𝐦𝐮
Fiksi Penggemarfission (n.) fis·sion | \ ˈfi-shᵊn , -zhᵊn \ being caught up in the cutthroat business world is made more interesting when you wind up in an unlikely entanglement with the man you consider to be your arch nemesis. miya osamu x reader highest rank...