when atsumu first starts dating omi, he doesn't expect the physical affection that comes with it. if anything, he expects the complete opposite: elbows brushing and pinky holding, short kisses when omi feels up to it. maybe he'll even let atsumu lean into his side on the couch.
it's something he's okay with, he thinks, because at least he'll be by omi's side. he'll take the dry pecks because he knows that for omi, it'd probably mean a whole lot more. That's what he expects, but what he gets is something else entirely.
when kiyoomi finally realizes that atsumu hasn't been joking all the times he's asked him out for dinner and says yes, atsumu feels like a winner. when kiyoomi compliments his choice of restaurant with a barely-there crinkle of his eyes, atsumu feels like a winner.
and when he walks kiyoomi to his dorm as if it were some huge romantic gesture, when he says goodnight, when he turns to walk away and gets fingers closing around his wrist before soft lips meet his own- atsumu feels like a winner.
he feels like he's won the lottery, actually, when kiyoomi's thumb strokes idly against the inside of his wrist. there's a second kiss to the corner of his mouth and a squeeze to his hand and atsumu stands there, stunned, even as kiyoomi slips away and into his room.
he's ascending, and it's only the beginning. really, atsumu should know better than to try and predict anything about sakusa kiyoomi, because all he does in their relationship is prove him wrong. in public, it's a hand sliding over his arm in passing,
cool fingers sliding between his on the team bus while kiyoomi stares out the window and says nothing as atsumu lays his head on his shoulder- slowly, carefully, and when kiyoomi pulls his hand away he's almost worried he fucked up
but then there's an arm around his shoulders and sharp eyes daring him to make a big deal out of it. he doesn't, because while he has a big mouth, atsumu knows a blessing when he has one. kiyoomi is a cuddler, and atsumu's pretty sure that alone is a gift from the heavens
in private, it's a lot more. a solid chest against his back, arms around his waist, a chin hooked over his shoulder- atsumu gets used to kiyoomi hanging off of him around the apartment. touch is constant.
even on nights where kiyoomi is overwhelmed and needs extra space between them, they inevitably wake up in a tangled pile of limbs, and atsumu has his face in a curly mop and can feel drool gathering on his collarbone. sakusa kiyoomi is a cuddly, drool-y sleeper. it's cute.
kiyoomi doesn't let atsumu lean into his side on the couch. instead, atsumu constantly finds himself leaning back against the arm with a 6'2" koala hugging his hips, kiyoomi's cheek resting against his stomach so that atsumu can run his fingers through his hair.
dating kiyoomi isn't what atsumu expected, but it's better than what he could have ever asked for.