You and your brother were polar opposites. He was cold and reserved whilst you were energetic and loud.
You had bought matching hello kitty pants for both of you, since you thought the idea was cute. He took them so you thought he'd wear them, and got excited. You walked into school the next day, looking for your brother with a grin on your face. That grin quickly faded, however, when you saw him wearing black sweatpants. You frown, realizing he didn't want to wear them or be seen wearing them, and walked away. That's when you felt someone tap your shoulder. When you turn, you see that it's his friend; Rodrick.
Rodrick was always just as cold and quiet as your brother, plus he was known as the delinquent who was always up to some sort of trouble. He would punch anyone who messed with him or annoyed him. With you, however, he was more lenient. Even if you annoyed him, he'd give you a warning he would never make good on and let you be.
At first, you were confused as to why he was talking to you, before you looked at his pants. His hello kitty pants. The same ones you gave your brother.
He sighs, "I stole these from your brother. Now you can stop moping." He mutters, his expression cold.