#alpha mob

Yet his focus was taken away immediately when he realised with horror that he was, in fact, starting to be in heat.

Yet he shouldn't be!! He had been taking his suppressant and blocker like usual, not missing once!

And has minutes passed by, it only got worse and worse, nothing like what he would usually go through. Hell, nothing like he had really felt in his life before.

He could felt weak, hot all over and his slacks were totally getting ruined by his slick. Had he always produced so much of it before? It felt excessive for an omega his age.

He groaned as he tried getting up, there was no way he would be able to g back home tonight, not like this at least. He would just lock the door, sleep on the couch and call everyone tomorrow to say he would close for the day.

Yet he couldn't do any of this, body freezing when he caught a strong scent suddenly coming and mixing with his own sweet scent.

He cringed a little at the way his inner omega sang at the sight of Mob, an alpha he was attached to, that both he and his deeper instinct trusted with his life. As much as he trusted Mob, he could see the way he was already being affected by this.

His body want to stand her meekly and wait for the alpha to come and take care of him, especially since it was someone Reigen already trusted so much. Yet he willed his body to try and go the to exorcism (massage) room, his body sluggish and slow.

But before he knew it, he heard the familiar sound of the lock clicking, then he was being pushed onto his desk, action surprisingly gentle despite how much force Mob was using to keep him pinned under him.

He saw the way Mob was breathing hard, nostrils flaring a little as he took in more of his scent, now worse and reacting to an alpha being over him like this. He could see the way his pupils where so dilated, barely leaving a tight ring of brown around it.

His breath hitched when Mob pressed his already throbbing cock between his leg, rubbing against the drenched and soaked in pants, only messing up Mob's own school uniform..

"Wait, Mob" he tried to stop him when he felt hands on his belt, hands weakly trying to push away. "Mob, stop it, you're not in your right mind" he tried to warn him, biting back a whine when the young man pushed a hand down his pants, finger teasing his soaked entrance.

He tried wiggling out from under the young man as he pulled his slacks off of him, nearly falling off of the desk and he climbed higher on it.

He had been ready to fall head first onto the ground, yet strong hand griped his hips, so hard it would likely leave bruises later on. He was instead pulled back, before being lifted up, Reigen latching onto Mob by instinct to not fall, bitting his lips as how good it felt to be pressed up against him, Mob scent driving him insane.

He needed to make all of this stop, yet his heat muddled mind wouldn't help him focus on that, making him torn between trying to make Mob snap back to reality and just let him take care of him like the good alpha he know he would be.

He felt a bit weird at how carefully he was lay on the couch, not used to partners being so nice with him.

Mob finished pulling his pants and underwear off, battling with frustration to take his shows off too because they were in the way (Reigen had half a mind to be happy that Mob didn't just straight up ripped his clothes like many would have likely done).

Reigen cannot help but look down at the young man hungrily kissing up his leg, nipping at his skin slightly and rubbing all over him, trying to put his scent on him.

He hold his breath as Mob is now over his crotch, a hand teasing his hear cock slightly, although his attention truly lies onto the slit under his, oozing with warm slick, begging to be filled properly by an alpha.

And apparently, this is what Mob decides to do.

Reigen's mind whined when he saw Mob pull down his own pants, his cock springing out and standing proudly.

his mind too muddled to try and stop him anymore. Instinct and heat taking over him, making him crave the touch of an alpha. It's obvious there's no stopping this, he might as well let it happens so the unbearable heat and aching of his body can stop.

At least it's someone he  trusts and cherishes.

There's no holding back the sounds he makes when Mob finally pushes inside of him, sliding with no difficulties with just how much slick he's been leaking.

the young man keeps fucking him roughly, hand keeping his hips in place in a strong grip. He can feel Mob kissing and licking his torso after he also took care of what was left of his clothes. nipping at his skin and trying to put his mouth on ever part of him.

Reigen is soon transformed into a moaning mess, grabbing onto Mob desperately, falling deeper and deeper into his heat. The more time goes and the better Mob smells to him to, the vague thought that he might have triggered his rut comes to him before going away just as quickly.

Reigen isn't sure how many time he cum, Mob hand relentlessly working on him while he keep fucking deep inside of him. He can feel his knot swell, stretching him even more widely than he was before.

This does send Reigen in a little bit of a panic despite how much more relax his body tries to be to take it all, being shushed by Mob, kissed in an attempt to calm him.

He shudders when Mob finally come inside of him, deep and locking himself so nothing would leak out.

Reigen weakly struggles when Mob bite off the cheap collar he was wearing, nearly screaming when he feels him bite down harshly on his mating gland, clamping down as he kept come more into him.

Reigen is too out of it to truly mind it, his inner omega singing with joy at finally being claimed like this by such a strong and powerful alpha, someone he knows will be able to take care of him (even though he very much shouldn't)

Reigen feels exhausted already, not as young anymore to keep up with this kind of activity. But it also a nice kind of exhaustion, different from all the last heat he's spent alone.

he nearly purr at the way Mob kisses him all over as he waits for his knot to deflate.

he's too out of it to try and tell him he should be fine for a while now.

Yet when Mob's knot starts to deflate he barely pulls out enough to get himself hard again, only to start all over again.

They spent all night like this, fucking on the couch, making the office smell heavily of sex and pheromones, he wouldn't be surprised if someone else could smell it even from outside the door. Reigen ends up passing out at some point after the third knot, Mob licking and nipping at the fresh bite mark on his neck.

When he wakes back up in the morning his body is arching and he still feel a bit woozy from his heat.

Yet when memories from what happened come crashing back on him he pale, guilt and panic washing over him. How could he have let something like this happen?

And with how much they had fucked, there was no way Mob's seed wouldn't have taken by now. And the mating bite, that was also something to worry about, even more greatly.

He was about to stand up and try to figure it out, when he was instead pulled into someone's lap. He immediately realises it mob's holding him close, making him stop struggling and nearly melting into his now mate.

"Mob we... I... I'm so-"

"Shh" Mob's quietly says next to his ear, something in him rumbling low and reverberating through the omega. "It'll be okay, I'll take responsibility for everything"

"But it's my fault," Reigen says, unable to stop himself from leaning his head to the side to leave access to his neck when he felt Mob so closed to him.

"It'll be okay" Mob reiterate again, kissing the painful mark on his neck, "we'll figure it out, don't worry".

Reigen nod choppily, trying to clam himself down. Sure, they would be able to think about it everything would be alright. He trusted Mob.

Everything would be fine.

the omega missed the way Mob smiled at his compliance, glancing to his school bag which hid within heat suppressant, which had been switched with sugar pills and heat-inhibitors.

A hand went to Reigen's stomach, carefully rubbing over it, purring in satisfaction when he smelled how satisfied Reigen seemed to be, even if unconscious. He could already smell some changes in his scent.

perfect.

But with that, Reigen helps him as best as he can. Especially since somehow, Mob always comes to him for advice about alpha, despite Reigen just being a normal beta and knowing there are alpha in Mob's life that could help him better.

He also tries to help Mob get ready for when he'll find an omega with whom he might bond and mate. After all, who wouldn't want Mob?

But as Mob grows older, taller and stronger, Reigen starts to realise that he doesn't seem like he's seeking an omega?

And he doesn't actually notice the way Mob focuses on him /A Lot/.

Mob who innocently asked how to scent someone so he knows how to do it later on and Reigen let him try on him, because what bad can it cause? He's just a beta after all.

But with that, He ends up walking about with an alpha whose scent is actually pretty strong (he just doesn't smell it that much anymore with how used he's to be around Mob).

Then doesn't fully notice when Mob scents him discreetly, trying to mark him in a way.

And with that starts his small possessiveness over Reigen, which keeps growing.

And poor Serizawa, who's also an alpha, who has to deal with Mob's scent and aura feeling overpowering and the way he sometimes directly looks at him when he decides to scent reigen.

I can only imagine Serizawa being this poor alpha who never really got socialised (after all he was away from people for most of his life) and who only wants to have a good relationship with his boss, only to have this high schooler glare at him and making clear what is his

And it's probably only as Mob grows older, tall and stronger than Reigen really realises that Mob is *really* not interested in finding himself a mate and that he seems too focused on him.

Could see Mob eventually confess because Reigen was trying to push him to date others.

and while it's not unheard of or taboo for alpha to date outside of omega, the percentage that does so is still pretty small.

And Reigen just can't see himself as good enough. Mob is this tall and strong alpha who could be categorised as some of the best there could be and somehow he settles on Reigen, who's a plain middle-aged beta?

Of course, this would have a happy ending 😌 because of course Reigen feels more than platonic feelings for Mob, but just always buried the down because OBVIOUSLY Mob would look for better.

Lol, now I can also imagine in the times when Mob just started scenting Reigen, he comes across Ritsu who looks at him weirdly and mad because yeah, sure, he nearly always smells like nii-san but not /like this/. but maybe one day he witness Mob doing it secretly and realise this isn't a "Reigen is being the problem" kind of thing, but rather his brother being the one doing the thing on his own accord

Or also

One time on Mob's break from college is the one going to visit is actually Reigen (Mob asked so nicely and he's curious to see).

They come across some of Mob's classmates, and maybe one of them is a cute omega who clearly as a crush on Mob.

Reigen teases Mob about it semi-discreetly and Mob gets a little bit mad about it, denying it. Poor little omega who got their hope smashed like this, but also realised that no one else would have a chance once they look more closely at the way Mob treats Reigen.

What's Reigen's grown accustomed to over the years, (like standing really close to each other, Mob throwing an arm over his shoulder), looks really pretty territorial and semi-possessive coming from an alpha, but instead put towards this older beta who seems oblivious to it

I just like the idea of Reigen so not being used to being around alpha (aside from Serizawa, but he might not be the best example), that he barely questions any casual claim Mob puts on him that isn't too obvious. He just thinks that's how Mob act with people he's close to