Thread by @ChangelingAO3

#sakuatsu pregnant Omi part 23 (CW: blood)

They're able to squeeze in a JNT meeting before Kiyoomi's induction. Hibarida had offered to allow him to join virtually, but since Kiyoomi's been staring at the apartment walls for weeks now and he's able to rent a wheelchair, he--

--makes Atsumu wheel him around to attend in person.
To his surprise, he's not the only pregnant member.
"Lev, fuck off," Yaku, brandishing an iced coffee, shouts as an attractive alpha tries to pull a chair out for him. "I can do it myself!"
"Yak-san, you're supposed to rest--

-- and not have caffeine!"
"That's a myth!" Yaku takes a long suck of his coffee, the ice rattling around at the bottom as he finishes it.
Kiyoomi looks at Atsumu and considers that they might not have have most explosive relationship at the table.

The meeting concludes with--

--two rosters, one including Kiyoomi and Yaku, and one that makes allowances for if their recoveries take longer than planned or if they decide to take time out from professional play.
Halfway through, Atsumu leans over and asks if he should be taking a break from the JNT.

Kiyoomi gives him a disbelieving look and shakes his head.
Suna Rintarou watches the exchange and Kiyoomi gets the impression that his response is the only reason the Inarizaki alum doesn't try to slap him upside the head.
Whatever progress he might have made with Osamu doesn't--

--seem to have extended to his wife. Even if Onigiri Miya hosted an investor event last week.

They head back home after a pleasant dinner with Ojiro and Kiyoomi oversees Atsumu while he puts together a cot and changing table. Swearing at screws and alan keys as he goes.

The imminent arrival of their child is the reason that Atsumu's rut sneaks up on them. They're so busy that one day they're bickering over bottle brands and by the next morning Kiyoomi wakes up to Atsumu pinning him down, face pressed hard against his neck.
Atsumu mumbles--

--something that sounds a lot like 'Omi' before he starts kissing along Kiyoomi's jaw.

Opinion is split on how safe it is for someone in their third trimester to share a rut, but given Atsumu has never been violent, or even very rough, during his cycle, Kiyoomi lets himself--

--indulge in the attention Atsumu likes to give.
He lets him keep kissing his face while slipping a hand under the waistband of Atsumu's boxers, wrapping his fingers around his leaking cock and letting Atsumu rut into his fist. A quick first orgasm will make it easier for both--

--of them.
Kiyoomi might not be a huge fan of the incoming mess, but their bedsheets are going to be ruined anyway.
Atsumu's breathing starts to hitch and his begin to stutter, his release not far away, so Kiyoomi makes sure to grip the inflating knot at the base of his cock.

A small part of him is regretful that Atsumu's first load isn't inside him, even if Kiyoomi knows that there'll only be a few minutes before Atsumu is ready to go again and by that point there won't be anyway to distract him from Kiyoomi's cunt.
In fact he barely has time to--

--wipe his hand on the sheets before Atsumu is shoving his underwear off and pushing Kiyoomi onto his back.
His eyes are glazed over and his scent is pouring out so strongly that Kiyoomi can feel himself getting wetter.
He's never met anyone who smells as good as Atsumu.

It's probably unwise to let himself relax into to fast fucking that Atsumu is giving him, even if both of them are making sure to keep the bump safe, but at the same time they've both been stressed and busy for a long time.
A satisfying fuck is what Kiyoomi didn't know he'd been-

--craving.
He cums hard when Atsumu knots him and he can feel him spill inside him. It's just so... right. Even if he's already pregnant.
Some small part of his brain wonders how quickly he'll end up pregnant again once his heats restart. If their success the first time around--

--is anything to go by, Kiyoomi is going to need to take birth control, and rigorously.
"Fuck," Atsumu rasps, rocking his hips as his knot starts to deflate. He looks wrecked, a sheen of sweat over his face and his muscles are bunched hard as he braces himself over Kiyoomi.

"Is... is it good?" he asks.
Despite having just cum, Kiyoomi can feel himself leaking slick at the sight of his alpha desperate to please him. The rut pheromones are keeping both of them hot and aroused, so Kiyoomi has no reservations as he rolls his hips closer to Atsumu.

"So, so good," he praises, stroking Atsumu's cheek as he starts thrusting again.
It's a bit slower than before, longer strokes that make Kiyoomi see stars whenever Atsumu thrusts in fully. God, he loves him.
Miya Atsumu is an abrasive, single-minded volleyball asshole but all--

--that means is that he's impervious to Kiyoomi's acidic behaviour, unbothered by his bluntness, and he'll never try to compete for attention with the sport that Kiyoomi loves.
He's no sure how it took him until here-- eight months pregnant, co-habiting and sharing a second rut--

before Kiyoomi realised that the two of them fit together so perfectly.
Atsumu leans down to run his tongue over Kiyoomi's neck and Kiyoomi can't help buy bare it even more. The hot breath over his mating gland sends shivers through his whole body.
There's a sudden stab of pain.

It's not wholly unpleasant, not unlike when the sports masseuse presses hard on a painful muscle knot, and Kiyoomi wraps his legs around Atsumu to pull him closer for a few seconds until Atsumu removes his teeth and he realises what's just happened.
Kiyoomi claps a hand to his--

--neck and feels blood leaking onto his fingers.
"Did you just fucking bite me?!"
Atsumu's eyes go wide and the rut haze dissipates slightly.
"Fuck, fuck, fuck, I'm sorry!" Atsumu hastily pulls out and helps Kiyoomi sit up. "Shit, it's bleeding."
Kiyoomi pulls his hand away to--

--see that his whole palm is covered in his own blood. The pain is starting to get worse now too, pulsing in his neck as the wound bleeds in time with his heart beat.
"I'll get the first aid kit," Atsumu yells, lurching off the bed and towards their en suite.

Kiyoomi is too dazed to say anything, just returning his hand to his bleeding neck.
Atsumu is furiously tossing things around in the bathroom when the other pain starts.
It's like a red hot belt is tightening around his belly, so incredibly excruciating that he can barely breathe

In a few seconds, it passes and Kiyoomi is able to yell.
"Atsumu!"
His boyfriend pokes his head around the door frame, still panicked and about to be more so.
"Yeah?"
"Call an ambulance, I'm going into labour."

TBC! I've got one more part planned and then this thread is over.

If you enjoy my fics or threads, please consider giving buying me a coffee.
buymeacoffee.com/Changeling