#Sheith #SheithNSFW #ABO Omega!Keith Omega!Shiro (Canon-verse if Kerberos went well)

Keith and Shiro are both omegas living in an alpha-centric world. Neither of them are what you'd call a "typical" omega, and that's part of why they gravitated to each other.

They're too wild, too reckless, too ambitious and determined. But they're also very good at what they do, and they leave all the alphas whining in their dust.

After Kerberos, Shiro gets an experimental surgery. Keith graduates and starts to fly.

Between the two of them and the Holt's, they bully the Garrison into letting them become a flying duo for long missions. They do short missions, like ferrying scientists back and forth from the Mars colony, solo, but together they are pioneers.

They chart courses through tracks of space humans had previously only dreamed of visiting.

When they're not flying, they have a little house together on Garrison land. It's easier and cheaper that way. And it makes the most sense for them to live together.

Away from the alpha BS. It's easy. Companionable.

Besides, after Adam, Shiro has little interest in dating (especially in dating anyone who doesn't have his back 100%). Keith has never really had an interest in dating (all he needs is himself and his best friend).

(And his knife).

They're just back from a scouting trip to Alpha Centauri. It was a groundbreaking trip that will provide deeper insights into human understanding of the cosmos, but most people (newspapers especially) can't stop making jokes.

"Two Omegas Bravely Venture into Alpha Territory" and the like. It wasn't funny when they left, and it's not funny on their return.

They've been gone 4 years, their longest flight to date, and neither is really looking forward to the return home.

Mainly because once the debreifings are done, they'll be shunted off to a forced month-long quarantine. Not because they were in space. Not because they may have encountered something dangerous.

Because they've spent 4 years on suppressants.

The come-down is going to be nasty. It will take a few days for the suppressants to wear off, and then it'll be Heats-ville population 2 for several weeks as their bodies deal with 4 years of hormonal build up.

It's not something they look forward to.

The Garrison tries to help. They schedule supply drops. They spring for whatever "necessity" (*cough* knotting toys) the omegas require. They even offer to pay for heat companions, but both Keith and Shiro shut down that line of discussion real quick.

No one /needs/ an alpha, no matter how long they've been in space. Besides, it's not a great idea to throw an alpha into the living space of 2 such wild un-omega-like omegas while they're tripping on heat hormones. No one wants to deal with that aftermath.

So, Keith and Shiro bunker down in their house together. With scent blockers at every door and window, a freezer full of microwavable meals, and a fridge full of energy drink.

And honestly... It's not to different from being on a space ship together for 4 years.

The only main difference is that they watch tv now instead of their navigation systems.

It starts with Keith feeling cold. He grabs a sweater, and a little while later he grabs a blanket. Then Shiro gets cold and he grabs his own blanket.

But soon enough they've combined their blankets and they huddle together under their bulk as they catch up on world events.

Pillows get added over the next day or so, and eventually Keith gives up and just drags his mattress onto the living room floor.

It just makes sense for them to build their nest together. They've done everything together for 4 years now. (Longer, really, with all the time they've lived and flown together).

They switch to watching cartoons as their patience for retaining new information dwindles.

Then the cartoons become background noise as they burrow down in their blankets where it's warm and safe. It smells like the both of them, and that's very nice.

It gets even nicer when they cuddle and start to scent each other. Their scents soothe each other.

Even as it gets harder to talk, they find they don't need it because their scents say all they need.

Bundled together in their pile of blankets, surrounded by pillows and soft things, they are hidden from the world.

If anyone were to come in, they'd see only blankets, built in a dome in the middle of the room. But they'd smell the scent of happy omegas. And hear the sweet chirps and purrs that Shiro and Keith use to communicate their happiness.

Slowly, scenting and cuddling turn to soft touches. Light kisses get passed back and forth.

They play in the nest, too. Gentle roughhousing. They wrestle and scent and kiss each other. Which leads to deeper kisses and grinding.

Keith wrestles Shiro down and grinds between his legs until they're both mewling into each other's mouths. Their clothes become too hot, so they strip those off. The soft clothes don't go far, though, they just become a part of the nest. (Paradoxically, the nest is not too warm).

Touching is much better without those pesky clothes in the way. They can scent each other everywhere. Kiss everywhere. And the /grinding/! Oh boy! The grinding is so much better this way!

This time, Shiro rolls atop of Keith. Their little omega cocks line up perfectly.

Between the both of them they work up enough slick and heat to ease the glide, and they rock together until they come.

Then they lick each other clean - they have to keep the nest clean, don't they?

The next time they break for food, Shiro man's the microwave while Keith hunts out the toys the Garrison provided. He brings them back and lays them about the nest, so that there's always one within reach no matter where they are.

Shiro returns with 2 trays of food, and they take turns feeding each other. They eat off each others' plates. Share a bottle of energy drink. Then wrap around each other for more cuddles.

When the next wave hits, Keith starts to nibble and bite.

He manhandles Shiro, who goes easily into position, and then they take turns fucking each other. And when their poor little cocks can't take it any more, they grab their toys and fuck each other that way.

Over the next few weeks, they learn each others' bodies intimately. Shiro finds out that Keith's feet are incredibly ticklish, but that the inside of his knees are sensitive to kisses and bites. Keith learns that Shiro likes it a bit rough. Likes being held down, taken care of.

They fuck each other every way imaginable. Using their mouths, their holes, their thighs, their hands, every toy at their disposal, and grinding against every square inch of skin they can get. (Except for Keith's feet, which is a designated no-fly area).

When their heats finally lift, they are exhausted. And a little dehydrated, despite all their best efforts.

It takes days to do all the laundry needed. Keith's mattress is a write-off, but that's ok because he just moves onto Shiro's.

After that, they force themselves to wait a full month before they elope in a little chapel one state over. They manage to hold off till they're back in the hotel room before they make their bond bites.

The Garrison celebrates their union with paperwork and new dog tags.

Otherwise, life continues for them as normal. Because, as they've now realized, they were in love all along. The only difference is now, if ever the mood strikes, they can pull each other until their arms and kiss the living daylights out if each other.

Which is a nice addition.

End

Also, like.... How did this get so long?? My brain literally went "omega Sheith grinding during heat. Go!" And somehow it got like... Involved??