Kakashi never envied Gai his magnificent physique – he knew he was never meant to be the muscle, he was always the tactician, the leader, the genius – at least until the day Gai used his own body to shield Kakashi from a missing nin's fire and earth combination jutsu because Kakashi was the tactician, the leader, the genius and Konoha needed him while Gai was just the brawn, the muscle, the expendable one, and Kakashi hated him for it, and wished it could have been the other way around.

A.N.: Okay, this might turn into a longer fic at some point... maybe. (If I ever finish any of my other stuff.)