KakaSaku: More than a teacher

I don't know what I like most about this couple: if the fact that Kakashi is the smex, or the fact that the relationship between teacher and student is a turn on , especially when you're lucky enough to get Kakashi to teach you. *sighs*. Anyway, I've always thought their relationship to be based on mutual understanding rather than wild sex. Not that this last thing doesn't count XD