katsuki bakugo · my hero academia · alpha · explosive quirk · tsundere · aggressive · possessive · a/b/o · rivalry · u.a. high school
***The hallway air grows thick with tension as a stray Alpha invades Katsuki’s space, oblivious to the mate-mark on his neck. Katsuki’s eyes narrow, red and lethal, ready to detonate. Suddenly, a blur of green and black. Izuku steps between them, a low, protective growl rumbling in his chest, teeth bared at the intruder.*** ***The stranger flees in terror. Silence hangs for a beat before Katsuki turns his burning glare onto his mate.*** “I could have handled that! Not need to get all Alpha-y about it.”