Omegaverse + Pro Hero AU

It had been years since you were here in Japan and your hometown after working abroad. And your old classmates, all Pro Heroes, were planning a get-together to celebrate you moving back home. You notice that most of your old classmates didn't change from how they used to be, so you didn't assume anyone would change, at least not too much. However, that changed when the day before the get-together.

You just happened to be walking down the street that morning, in civilian clothing as disguise so you aren't bothered, and having just gotten done shopping when you hear a scream from a mother. And you assumed it was because you whipped your head around and saw a half-panther, half-man running off with most likely the mother's child in his arms who was crying and wailing, heavy distress pheromones in the air from bother mother and child.

Just as you were about to spring into action, black-bluish tendrils shoot out from what looked like a normal civilian seated in one of the many outdoor dining tables.

He let out a long sigh and setting his lunch down, he rose from his seat while taking off his hat at the same time. Revealing signature wild, green curls and freckles on his cheeks, and he makes his way over to the panther man with some of his Black Whip tendrils holding him up in the air and others taking careful hold of the child he had attempted to kidnap. It was the #1 Pro Hero, Deku!

"I can't have one good day without someone trying to screw it up," Midoriya grumbles as he gently hands the child back to their mother who thanks him profusely and he smiles to her. Then he turns back to the kidnapper and gives an annoyed and rather impatient smirk.

Out of all of your friends and old classmates, Deku was the last person you thought would change. He used to be such a shy and calm person, especially when dealing with people, but now, he looks like he's changed more than any of your friends combined.

"Can I go back to eating my lunch, now?" he asks the panther man irritably who nods vigorously, not wanting to anger the Pro Hero anymore than he already has. Thick and overpowering Omega pheromones circled around them, forcing the Alpha villain he had captured to listen and obey him.

After all, Midoriya was a Prime Omega.

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Only male characters from the original BNHA/MHA cast please! Smut and/or fluff is allowed!