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Saccharine words never really worked on him before so why did Izuku have him melting with such lofty promises. Izuku's lips touched his hand. Blushing he frees his hand from the others grasp. Turning his head to the side so it can’t be seen.
“The hell got into you all of a sudden?” Sure they are dating now officially but Izuku had never been so forward before.
“Just felt like it.” The reply has him turning his head to see Izuku looking smug. An unfamiliar look on him but not one that Katsuki could bring himself to care about.
A lot of strange behavior from the other is not something that he could bring himself to care about. Even though he should. Izuku's sharp turn into something villainous is concerning and it needs to be addressed. He just couldn’t bring himself to address it. So the behavior continued, they had a trail of bloody bodies behind them. Although they did get people who surrendered to Izuku in exchange for… something. Whatever they agreed to do was not something they overheard and when Iida tried to get information from them they promptly clammed up and ran off.
Everyone was concerned and scared at the drastically different behavior but other than hours and hours of arguing about it. Nothing has been done by it. They all just continued to follow Izuku obediently. Never even trying to stop him no matter how much their stomachs turned. The others at the orders of Izuku had gone to the next town to gather ingredients. Why Izuku wanted them, no idea but off they went. Probably hoping to see if they could find some kind of solution to fix Izuku.
For katsukis part he lets Izuku pull him into his lap. Turning his head to and fro to let him place kisses and hickeys upon his neck. He freezes as he feels tiny sharp pains on his neck. Gasping as the pain grows bigger and bigger.
“Stop! Stop!” He begs in tears.
“Sorry Kachan but I need to practice for the others. So not only is this going to take a while but it is going to hurt a lot.” Izuku coos at him, adjusting him to lay on the bed as black vines appear as they bind him to the bed.
“Deku, stop! You can’t do this.” He demands, fear striking hard in his heart. He is not very intimidating though and Izuku doesn’t even acknowledge him as more sharp and horrid pains tore into him.
“Seriously, do you think that the others will forgive you for this?” He screeches at him, tears falling down from his eyes at the sheer pain he is feeling.
“Oh! Like when I killed nearly everyone on our path? I doubt they would do anything practicing on you. Not that they’ll get a chance to do anything.” Izuku laughs as his fingers trace my arms. His face is calm and serene as he torments his lover. Not even caring about the high pitched sobs that erupted from their throat. “Soon, you will understand like I do and then they will understand. For now, just submit.”
With that the pain I felt doubled and it took everything not to pass out. It was like that for hours and hours. Eventually it stopped and when it did it felt like a piece of him died with it.