Chapter Text
Katsuki sat on the front porch of his parent’s house trying desperately to get his headache under control, his mother was loud as always and only exacerbated the situation. His gaze wandered across the street to the Midoriya household as Inko’s car pulled into the driveway. Katsuki watched as the green haired woman got out and circled round to the back passenger side, opening the door and leaning inside. He didn’t mean to stare but with nothing else to draw his attention, his eyes remained fixed on the neighbor. What happened next only caused Katsuki to watch more intently, Inko emerged from the car once more with a squirming blonde toddler in her arms. Where exactly did Inko get a child? She pulled a familiar yellow backpack from the car and headed inside her house. What exactly had he just witnessed. He stared at the door for a few moments in shock before standing and heading back inside.
“Hey! Whose kid does Auntie have over there?” he shouted as soon as he crossed the threshold.
“What are you yelling about?” his mother screamed back slamming cabinet doors in the kitchen as she cooked.
“Inko!” he continued as he entered the kitchen, “she has a kid over there, whose is it?”
Mitsuki huffed and put her hands on her hips, her lips pressed into a thin line.
“What?” he asked, unhappy with the lack of answers he received from his mother.
His father stepped into the room and placed a hand on his shoulder, “it’s a sensitive subject, son, lower your voice.”
"How the hell is this a sensitive subject? The hag is friends with Auntie, so I’m sure she knows, just tell me already.”
Mitsuki frowned and turned back to her meal prep, “Inko and I haven’t spoken in some time, we had a falling out and we were never able to patch things up.”
“Well shit. How the fuck was I supposed to know that?” he growled as he sat at the kitchen island with a heavy plop.
“Well, your mother didn’t want to concern you with the details,” Masaru explained, taking the seat beside him.
“What the fuck is that supposed to mean? What exactly about the details would concern me so much?" The entire situation seemed off and he didn’t like it.
“It means she made a jab at my kid so I flipped it around on her and she got pissed. We haven’t spoken since then,” his mother said, punctuating her statement with a hard slap to the counter top.
“What the fuck did she say about me?” Katsuki asked, if she had a problem with him he wanted to know about it.
Masaru kept this soothing tone as he tried to explain, “I don’t think yo-”
“That woman said you were an irresponsible brat and I put her in her place,” Mitsuki interrupted. “I told her that if anything her kid was nothing but a weakling clinging to you and holding you back. She didn’t like that very much.”
“You said that about Deku?” Katsuki blurted, sure Deku was always around when they were younger, but he wouldn’t go as far as to say the omega had been holding him back.
“She said you were irresponsible, and you’re worried about what I said about her kid? Focus, brat!”
“When did all this happen? Why didn’t I know anything about it? Why didn’t Deku tell me?” the questions tumbled from his lips.
“This was about three and a half years ago,” his father supplied, “right after you graduated.”
“Three and a half years ago?” Katsuki repeated to himself under his breath. What the hell happened back then to make Auntie hate him so much? Deku never mentioned anything, and they had stayed in touch through text the entire time, He would have remembered if he had told him about his mom being upset with him, but they really only ever had casual conversations since then. Katsuki had to admit he’d kept things pretty light since they’d-- oh.
That was around the time that he and Deku had their fling, it was hot and heavy for the summer after graduation, but it had been brief. If that was the time frame that Inko had gotten mad it might have had something to do with that. He had thought they had broken things off amicably, hell they still texted each other every other day, but maybe Deku had been unhappy with him for ending it and vented to his mother.
Katsuki pulled out his phone and looked over the last messages they’d sent to one another, searching for any sign of trouble, but all he saw was the usual chatter. They talked about jobs, friends, and vented about adult woes like bills and responsibilities, nothing there said to him that anything had changed with Deku. Suddenly it hit him like a truck, he looked over the messages again and realized he was a massive idiot, all of this was a huge neon warning sign and it had been for years. Deku wasn’t the type to keep things short and sweet, casual texts were not his style, all of this had been Deku’s way of keeping his distance and Katsuki had been too fucking dense to notice. How had he not seen it before? All he could do was laugh at his own stupidity.
“What the hell are you laughing at, brat?” his mother snapped.
“I just realized Deku has been mad at me for ages, he ran a hand over his face in exasperation and sighed, “I’m a fucking idiot.”
Looking at his phone again Katsuki typed
are you mad at me
He sent it without a second thought. Three little dots appeared to alert him that Deku was typing, and he waited for the reply. The dots disappeared and reappeared multiple times and Katsuki prepared himself for the novel he was sure to receive, but he felt oddly disappointed when the reply came through. One word was all he sent.
No.
Wha-?! Katsuki resisted the urge to throw his phone across the room, all that time typing, and the shitty nerd only sent one word. Hell No. Something was going on here and he was going to get to the bottom of it. He stood so quickly that he knocked the stool to the floor, shoving his phone in his pocket he turned and stormed out of the house and headed across the street, ignoring the calls from his parents behind him. If Deku wasn’t going to tell him anything, he was going to the next best source, Inko. It didn’t take long before he stood in front of the Midoriya’s home, without any hesitation he lifted his hand and rapped on the faded door. He could make out some shuffling sounds before the door opened to reveal Inko, smile quickly dropping from her face. “Auntie,” Katsuki took a breath, “can we talk?”
Inko’s mouth opened but no words came out, she wiped her hands nervously on her apron and looked at him in disbelief. Fearing that she would slam the door in his face, Katsuki moved his foot into the doorway.
A tiny voice cut through the tension, “Grammy, Grammy,” the toddler appeared and Inko moved to block Katsuki’s view, but it was too late.
He had already locked eyes with the child, he had already seen the unruly ash blonde hair and bright crimson eyes. He had seen the child that looked identical to him spare the smattering of freckles across their face. Katsuki willed himself to pry his eyes away to look once again at Inko, “We need to talk.”