#beta reigen

[truly-morgan]

[a|b|o, Age Swap, α!Mob instinct awoken for Ω!Reigen]

MobRei | Mob Psycho 100 Omergaverse + Age Swap AU 24-02-2023

AgeSwap A/B/O where alpha Mob never really had his instinct awaken. He doesn't fight for dominance or get territorial with other alpha. He's not submissive to other, but he isn't bothering with that kind of stuff either.

Until Reigen present as an omega.

Then his alpha instinct spike and he feel lile he MUST protect Reigen or else he doesn't feel good. Glare and growl at any alpha that gets a little too close to the teenager. Is always within armlenght or Reigen, where its easy to pull him back if needed.

He's never been a touchy person, but he finds himself often touching Reigen. Nothing inappropriate of course, but thing he mever does with anyone. An arm thrown around his shoulder when sittint. Fingers brushing through his hairs softly. An arm around him or on his Shoulder as they walk. Sitting so close that their legs are pressed against each other.

Maybe his instinct push him to scent Reigen without knowing what it is, feeling proud and reassured when he can smell his scent mixing up with Reigen's.

Mob has never cared for showing dominance and what is his, nor as he ever cared much about other omega before. But Reigen is different and he cant help it.

And of course Reigen couldn't be happier aboutall this 🤭😌

I could imagine him being confused at first, only to slowly melt in the attention given to him and enjoy the way Mob get like this for him only.

Reigen who falls for Mob because of all this and tries to push the limits to see until where Mob will allow things to go, only to see that aside from some hesitation for bolder things, he'll do or give him anything.

He feels very loved like this 😊💜 (Even tho he wonder what exactly Mob-shisho feels towards him, but thats okay, its seems good enough for now)

Lol just thought of what would be Ritsu's reaction to seeing all this. Happy that his nii-san is finally allowing his instinct to come out? Or horrified because its all directed towards that one teenager omega?

Also people at school (and maybe home) looking at Reigen wondering if he has a partner or something with how strongly he always smells of an alpha

Original

[skolipede]

Incel Reigen vs. Chad Reigen

[truly-morgan]

[A|B|O, α!Mob pursuing β!Reigen]

MobRei | Mob Psycho 100 Omegaverse 23-12-2022

Dropping this here so I won't forget (and to extend on later):

#mobrei where Reigen is a pretty plain and normal beta, while Mob ends up presenting as an Alpha. He's pretty happy for Mob about the news, but Mob doesn't seem like he wants to find an omega partner

Like, maybe when Mob's present he surprised everyone a little bit because usually, alpha aren't smaller. But Reigen is happy about it (not that he would have acted differently if he was an omega, he's just somewhat relieved it will be easier for Mob in life like this)

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

Original

[truly-morgan]

[A|B|O Age Swap, β!Reigen under α!Mob care]

MobRei | Mob Psycho 100 Omegaverse + Age Swap AU 29-12-2022

I need more beta Reigen honestly with Mob just latching onto him and being possessive and now I'm thinking Age Swap AU.

Reigen who's a bit sad to learn he's just a beta, but happy that shisho doesn't seem to mind.

Meanwhile, Mob probably feel possessive and protective of Reigen and whatever he would have been, he would have still latched onto him. An omega would have been nice, he could have shown him he can take good care of him, but a beta is easier to deal with than an alpha

And while Reigen is a bit sad to just be a beta (he would have loved to be an alpha) he recovers quickly when Shisho shows that he still likes him none the least, not really noticing the way Mob gets worse over the years when it comes to protecting him and keeping him close

And Ritsu is too slow to realise it, when he notices the way Mob glares at anyone who even just glances at Reigen, the way he casually scents him (leaving Reigen a little puzzled because he's still a bit too young to get it), the way he always keeps him close

it's too late his brother is too obsessed with Reigen and he knows that if he, another alpha, tries to interfere it will probably turn bad, he doesn't really think that him being his brother would fully keep Mob from getting mad (though maybe he would be nicer on him than other)

But also anyone who knows them does see the way Reigen as actually has a pretty positive effect on Mob. If he gets overwhelmed Reigen just needs to talk to him softly and stay close and it helps Mob calm down. Sometimes he'll hug him and Reigen's scent, even if pretty muted because he's a beta, helps immediately calm him down

It's actually pretty funny to imagine this tall dark alpha who was probably about to go 100% being suddenly semi-calm and docile because this young beta just waltzed in and hugged him, murmuring reassurance to him

Although letting Mob be this close, possessive and protective, as calming as it can be, is a double edge sword, because he totally goes berzerk if anything bad happens to Reigen when he's not with him (he wouldn't let anything happen to him)

I just love fucked up Age Swap Mob who never really had anything good in life and latch onto this loud little guy who really wants to get psychic powers

Original