Luigi loved his brother—he truly, deeply did—but that didn’t stop Mario from driving him up the wall sometimes, not one bit. Even if the celebratory fireworks lighting up the sky were very pretty, that didn’t stop Luigi from shaking Mario like a maraca and yelling at him for just running off like that, what was he thinking going after Princess Peach, was he hurt, what if something had happened—

And Mario just gave him that apologetic smile, and Luigi knew that it wasn’t going to be the last time he did something reckless like that again.