Okay, I know everyone is like 'sero is a stoner and smokes weed and is a nut like Kaminari or Mina' but they seem like the cool parent friend to me. Like, one, they're the tallest of the bunch. Yes, they're taller than blasty mcflurry, get over it. Two, they haven't shown crackhead energy yet. Kirishima, Kaminari, and Mina, however, have. Those three are like the irresponsible younger kids, Bakugo is the troubled middle kid, and Jirou is the oldest, about the only one with any sense, leaving Sero as the unofficial parent of the group. They keep the other five out of too much trouble, makes sure they're safe, all that jazz and sappy stuff.
~scenarios cause I'm bored~
•M*neta is harassing Mina and Jirou again, and Sero catches him this time. After a very one sided fight and a stern cussing out, the grapist is forever a cripple. Sero gets house arrest (stuck at the dorms) for a couple weeks, proud of themself for helping their unofficial children.
•Midoriya tried talking to Bakugo on a bad day (worse than normal), and he blows up at him. Sparking explosions, yelling, all that. Sero, who doesn't want their other kid to get house arrest for getting into another fight, walks over, picks the child (who was startled and went silent) up, and walks away. Midoriya is shocked. Bakugo is silently glaring at Sero, who's holding him over their shoulder.
•they go to check on Kaminari (he'd always getting into things he shouldn't, porn, R rated movies, the works), and finds him and Jirou making out (I'm a multi shipper, get the fuck over it). Sero only sighs and shakes his head in a disappointed parent way. All the two hear from them is "Really you two, you could've locked the door" and "be safe, wear protection" like a parent would scold a teen. The two that were making out are blushing messes and nod, Kaminari scrambling to get the taller person out.
•Kirishima walks to the kitchen to put groceries up, but he bought some weed and stuff from a friend for Kaminari. Sero, who always goes through the bags to make sure they had everything, finds the weed and looks at Kirishima, holding the bag up. "Start talking young man." They'd say in that slightly mad parent tone. Kirishima shrinks slightly and explains that it's for Kaminari. Sero takes the weed and decides to make edibles for his friends instead. "Edibles are better, smells like brownies and not shit." And that's how the six (Kirishima convinced Bakugo to try one at least) got high for a whole weekend.
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MHA Headcannons
Fanficread the freaking title :) Also none of the art shown is mine, all credit goes to the artists that made these amazing images!