Katsuki who is obsessed with seeing his partners in his clothes
The moment Izuku is back through the door after a long day of teaching, Katsuki is putting him in the biggest hoodie he owns (one that has been washed so many damn times the All Might pattern on it is faded and the inside is love-worn), grumbling about how Izuku works too damn hard. He shoves a pair of his own socks into Izuku's hands as well, ones with a soft interior and are just a little too big for Izuku, but will keep the nerd's body with his "damn shitty circulation" warm. Izuku just giggles out a soft "thanks Kacchan" every damn time it happens.
And when Kirishima is about to dip out leave for the gym, Katsuki grabs him by the back of the shirt, complaining that he "absolutely saw you working out in that tank top yesterday, shitty hair" and shoves one of his own into Kirishima's hands to replace the one he's wearing. It's Dynamight branded, cause Kirishima works out at a public gym, and sure Katsuki's boyfriend's hot but all the extras who stare should absolutely know who he comes home to every night. Kirishima laughs every time it happens, insisting he's wearing a clean tank top already, but Katsuki won't let him leave till he changes <3
And when Shoto's getting ready for some formal event, or gala, Katsuki will eye up the other man as he gets dressed. "What, my suit not fit me right?" Shoto will ask, voice blunt as always, but just playful enough that Katsuki understands he's teasing. Katsuki will narrow his eyes at Shoto before scoffing out a "No, it doesn't..." and getting up to pull one of his own blazers from the closet. He'd snatch the current one off Shoto's shoulders and replace it with his own, it doesn't fit quite right (his shoulders are broader than Shoto's and his torso's not quite as long) but it's good enough to make both of them smile. "Better?" Shoto would ask earning a soft huff of "Yeah, better." from Katsuki and quick kiss before he's allowed to leave
