Nsfw #bkdk a/b/o somnophilia marathon fucking cum inflation

Short crappy drabble for Kacchan’s birthday (it's still his birthday here, I swear!)

Katsuki wakes up at midnight to the silent alarm he had set on his phone. It is his 26th birthday, just days prior he had been made

number 1 on the hero charts. (It is his third time, between Deku and himself, they seem to trade the rank every other ranking change). There are a lot of things to celebrate according to Deku.

The alpha doesn’t exactly agree, he is not the celebratory type. This weekend they

will have a joint party and Katsuki will suffer through it. Because it is important to Deku. He would do /anything/ for the omega, even if that meant ruining his career and turning villain. All Deku would have to do is ask. (Not that he would, Deku never makes him do things that

Katsuki doesn’t want to do. Katsuki is so blessed by that)

Deku snuffles closer to Katsuki’s chest, probably woken up a little bit by Katsuki’s breathing change. Still asleep, Katsuki’s mate clenches down around his dick, causing him to bite back a moan.

It had sort of been a joke when he said that what he wanted for his birthday was to fuck Deku nonstop throughout the day until the omega was filled with a litter. Katsuki had meant it as one of those jokes that you say, when you actually want the thing,

but can’t quite convince yourself to say it. Thankfully, Deku had seen right through him, and within 24 hours a plan was made.

In the lead up to his birthday, after talking about it to near death, they had both tapered off their suppressants and began taking vitamins aimed at

helping conception. The biological change for Katsuki hadn’t been much more than feeling a little randier, and the swelling testicles. For Deku however, it involved a lot more.

For the first time since presenting, Deku is off birth control, suppressants and is actively preparing his body for a pup, of course, instincts are going to run wild. Deku had to wear special underwear with leak guards as every time they saw each other at work, he would begin to

slick up in public. He was constantly broody, making and remaking their nest as the hormones swept through him. They hadn’t mated in nearly a week leading up to Katsuki’s birthday, and they quickly discovered that

Deku couldn’t sleep unless Katsuki’s dick was pressed deep into his cunt.

Despite basically blue balling himself for a week, Katsuki had enjoyed the feeling of falling asleep with his cock buried in that wet heaven.

He has gotten used to it, maybe he will try to convince Deku to let him keep doing it after this.

Rolling so he is hovering over Deku, with his dick still inside, he stares down at his naked mate. There is nothing in this world that he does not love more than this stupid

impulsive omega. The mere idea of starting a family with him makes it difficult to function until that wish is fulfilled. So, he acts on that impulse.

Slowly, so as to not wake the omega, Katsuki begins to grind deeper in Deku. He keeps his thrusts even, and slow, trying to

not make too much noise. But it is difficult, even asleep, Deku’s pussy is wet around him, reacting to the arousal pheromones that Katsuki is pumping out. If he moves much faster than a crawl, the room is filled with the sound of sopping wet skin on skin.

After the week of not cumming, this pace is torturous. Katsuki is basically edging himself with every slow even glide, the only hiccup to the rhythm is his steadily growing knot. But it’s what he wants, he wants to fuck and fill Deku so much before the omega even wakes up.

With a grunt, he forces his swollen knot into Deku, locking them together. Deku cums around his knot, and Katsuki grins maniacally, his mate doesn’t need to be awake to feel good. Katsuki knows Deku’s body better than the omega does.

When his knot goes down, Katsuki will plug up the greedy pussy until he's ready to go again. They had asked for the next couple of days off of work, Deku is going to need the bed rest after Katsuki is done with him.

By the time Deku wakes, just past seven in the morning, Katsuki has cum in him three times and is working on a fourth. Their room stinks of sex, arousal, and pleased alpha. It is enough to cause Deku to cum again for the countless time, squealing as Katsuki pumps him ever fuller.

“Look at you,” Katsuki whispers, leaning down to lick Deku’s stomach, which has already begun to swell. The skin pressed outwards slightly as if Deku’s had eaten a really large meal, “What a slut, cumming on my knot before you are even fully awake.”

Pulling his deflating knot free, Katsuki forces the plug into Deku’s reddened cunt. Deku lays on his back in the bed, clearly exhausted despite having just woken up.

Katsuki leaves him there to go make breakfast, only letting the omega eat when he is once

again stuck on his knot. The marathon of fucking continues throughout the day. After eating and taking another nap, Deku is much more of an active participant, pushing Katsuki flat against the ground and riding him until they both come undone. Every room of the house is used,

as they tumble through the day fucking at every opportunity.

There will be a lot of cleaning and airing out that will be needing to be done before the party on the weekend, but Katsuki feels like it's been worth it.

As the 20th comes to a close, Katsuki finishes off with one last short knotting. At this point, he is basically cumming water. Deku’s stomach is round and distended, already looking several months pregnant, a vision from the future if the omega’s already changing

scent is anything to go by.

Just to be certain, Katsuki plugs the omega and flops down on his side, cuddling close to his mate. Deku purrs and presses closer to tiredly kiss him.

“Love you, happy birthday Kacchan,” Deku whispers, voice trailing off at the end as the omega once again falls asleep. Katsuki snorts, running his fingers through his mate’s gross sweaty hair.

He cannot wait to watch Deku begin to swell from the litter they had no doubt put in him today. And if by some chance it didn’t catch, well, there is always Deku’s birthday.

-end-

Like a said, short and messy. Still, hope ya'll enjoyed. See you soon! https://ko-fi.com/hushteeth