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"Ochako, what the fuck is that?"
The brunette looked up from her lap to blink owlishly at her boyfriend. "Hm? What is what?"
His scowl pinched further into a look of disgust. "That creepy ass doll thing that looks like me!"
"Oh!" Ochako looked back down to the small grenade on her lap. The living being was shaped like one of Katsuki’s gauntlets, including the long exaggerated pin, but where his gloved hand would normally appear was instead the blond spikes of her boyfriend. Large red eyes peered up at her just above the lip of the grenade and her heart melted once more.
"To be honest… I'm not sure."
"WHAT DO YOU MEAN YOU'RE NOT SURE?!"
"Lower your voice, you're scaring him!" Ochako scolded, gently cooing and caressing the creature’s hair as his eyes watered and tears formed.
Katsuki stared at the two of them slackjawed. "Him?!"
"Well, yeah, he's obviously based off of you," she stated matter-of-factly. "I just don't know how or why."
He stared flabbergasted as she continued. "I was on our usual patrol route when I saw this little guy! He was looking for food and a couple had just ran away from him, the poor thing."
The blond blinked nunplussed. "Poor. Thing."
"I know!" Ochako looked up at him with her big brown puppy eyes and dammit. His shoulders lowered. "I couldn't just leave him out there! So I brought him home."
She looked back down before lifting the… thing up in cupped hands. "Katsuki, I'd like for you to meet Dynamy! Dynamy, this is Katsuki or, as he's better known as, Dynamight!"
Katsuki curled a lip and stared at… Dynamy. The thing stared back at him with identical but larger (begrudgingly cuter) eyes. Unsure what to say, he reluctantly said, "Hi."
The thing – Dynamy – seemed to perk at this. Opening it's mouth with pointed teeth it chirped, "Fuck ya!"
…
…
…
What the fuck– how the fuck was he supposed to respond to that?
"Shitty!" Dynamy continued to chirp, its eyes in crescents as it happily cursed away. "Fu fu shitty fuck shi!"
Ochako squealed and pressed the atrocity close to her face. "Isn't he so cute?! He's just like you!"
That raised his hackles. "HAH?!"
"You're both funny, you curse, have blond spiky hair and red eyes–"
"I didn’t ask!"
"Oh, please can we keep him?! Look at how cute he is!"
The obvious resounding "No" was on his tongue until she looked up at him with those eyes. And fuck, he always had a hard time saying no to that. Then Dynamy looked up at him, and he realized how completely and utterly fucked he was.
He let out an aggravated sigh as he stomped to the kitchen. Ochako took that as a win and shouted in joy, the gremlin letting out growly "Fuck ya"s and "Shitty"s alongside her.
Later they'd find out the villain Dynamight had fought on patrol earlier that day had used their quirk on him, manifesting the hero's soul into a permanently physical, living form. He didn't know what to think of that, but as Dynamy noisily ate his crepe and Ochako cooed he found he didn't really mind after all.