"You have a quirk?" Bakugou looked dubiously at Midoriya who was jumping up and down from excitement.
"Yeah! I can be super strong like All Might and it doesn't hurt if I'm hit or stuff!"
Inko and Mitsuki watched the exchange with amusement. Inko had immediately invited her friend over to talk about the recent development of Midoriya's quirk and they were now seated around the table with mugs of tea in front of them.
Bakugou glared a bit at Midoriya before making his opinion known, "No, you can't! You're just a quirkless Deku!"
"No, I'm not Kacchan! I got a quirk now and I can't get hurt!" Midoriya stomped as he returned Katsuki's glare.
"Oh yeah?" Bakugou drew back his arm. "Does this hurt?"
The two adults realized what was going to happen only a moment before it did. That moment was still plenty of time for them to yell and move to intercept the children.
"Katsuki you better not-"
"Please don't, Katsuki-"
Sadly, there was not enough time to reach the two before Bakugou swung his fist at Midoriya's face.
Now an interesting fact about developing quirks is that they are rather unpredictable. So children in certain circumstances (say swinging a fist at their supposed immortal friend) may experience significant changes to their quirk; including, but not limited to, activating said quirk unintentionally, going past previously thought quirk limits, and an all-around increase of power behind one's quirk.
Now it just so happened that Bakugou experienced all three of these changes at the same time, resulting in a punch that resonated through the room and set the couch on fire. And as another effect, blew up Midoriya's head.
Upon seeing his now headless friend fall to the ground, Bakugou began to scream shrilly, slowly increasing in volume and pitch for far longer than probably reasonable until he passed out.
This reaction is what we call trauma and it is a common occurrence in children who blow up their friends' heads, an experience that is largely regarded as, well, traumatic.
Inko and Mitsuki for their part stood in silence for a moment looking at their two children (one of which was missing a good fourth of his body) before remembering that the couch was on fire and promptly attempting to put it out.
In a very impressive show of stamina, Bakugou woke up screaming. He did stop however upon seeing Midoriya sitting at the table with a popsicle in his hand completely fine. Although there was a layer of glitter falling off him for some reason.
"Can I have one?" He asks rather timidly.
Everyone involved in the "incident" promptly and without discussion agreed to forget about it.
AN: Short update today, apologies. Now might also be a good time to mention that this fic is completely and utterly crack, although I hope you could figure that out yourself from this update.