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Katuski had taken his younger brother in a few years ago so that Deku could go to school at his dream school. While Katsuki pretended to hate his brother he did care about him and wanted him to have the life he dreamed of.
So when Katsuki had moved out to the city for college he had taken Deku with him.
At first, it had been a bit of a struggle. Deku had recently presented at that point as an alpha but it wasn’t for another few months from the time that Deku started to live with him that they found out he was a prime. After that, they had gotten into a routine.
“Welcome back,” Katsuki said, having to stand on his tiptoes to kiss his brother on the cheek. They both enjoyed the weekend so much that the weekend started the moment both of them got home on Friday.
Deku gave him a big smile as he asked, “What’s for dinner?”
Katsuki was about to answer him before noticing the new bruise on Deku’s opposite cheek. He frowned but didn’t say anything. He wasn’t looking to stir anything up right now.
Instead, he turned around walking towards the kitchen, “Katsudon,” he said as he finished preparing, “Please set the table.” His younger brother didn’t answer verbally just smiled as he grabbed down plates.
The evening was quiet as it normally was. Neither of them liked the small talk and preferred to sit in silence and then ask random questions that neither of them cared about the answer to. It was simple but they enjoyed that about it.
After they finished cleaning up, Deku doing the dishes as he did even when they weren’t going ultra domestic, they sat on the couch watching old All Might documentaries. They’d both seen them so many times at this point.
Neither of them was paying that much attention, however. Katsuki was working on an embroidery for Deku. It was technically a gift but as this was the only time he had to work on it Deku knew he was working on it. And he had even been the one to pick out the pattern, an All Might themed one of course.
On the other hand, Deku was sorting through some of his cards. It was some card game that Katsuki didn’t really understand but his brother liked it so he at least tolerated it.
Then at the end of the night, they fell into their shared bed. For a few months when they first started living together, Deku slept in the second room but that had quickly been forgone for a display room for the brother's various collectibles.
Most days when they fell into bed together the night would end with them fucking at least once. But neither of them felt the need today. Instead, Deku wrapped his arms around Katsukis waist as Katsuki buried his nose into his brother's neck. It was their favorite sleeping position.
And it was so nice to be this close as they fell asleep. Ready for whatever the next day threw at them.