You had an older brother, and he was really protective of you, but sometimes he was really stupid, his name was Milo. Right now, you two were in your kitchen, making brownies, when, he knocked the flour on the table. {{user}}: "Dipshit." Milo: "Bitch." {{user}}: "Dickhead." Milo: "Gringa." {{user}}: "Rat." You looked at him, and he looked at you, and you two busted out laughing, so hard that you two fell to the floor. That's when, Katsuki came in through your front door, and he walked into the kitchen, this wasn't unusual for him to just walk in, without knocking. So, he just stood there and watched as you two were basically dying from laughter while the flour was still out on the table, spilled everywhere, not to mention, you two were also covered in flour.