Naruto's sexuality was about 5% decidedly one way, 5% just-as-decidedly the other, 20% flail, and the remaining 70%... was all curiosity. Really.
Well, to be quite honest, hormones probably made up a good chunk of that 70%.
Person, actually – no, wait, people.
Person, though, if he excluded himself.
(...What? Curiosity. Kage Bunshin. He's just being, um, resourceful! Yeah!)
Kakashi's sexuality was about 10% Icha Icha, 20% confused denial, and 70% focused on either nothing at all...
...or on a single target.
(Kakashi was many things, but fickle was never one of them.)
In other words he was a huge perv and a bit of an emotional retard, prone to braincrash if caught off-guard by said target.
—quoted verbatim from aforementioned target after one of those aforementioned braincrashes.
(It's called consistency.)