Does kissing a guy's neck normally turn them on?

yes.very much.

I love it, but more so when you work yourself up to my ear.

I personally love it, its one of my favorites :)

Absolutely for this guy. It works every time without fail. I love it. Of course I can't think of a place where that technique doesn't work on me.

I think most guys love it.guys have a lot of nerves in their neck so it causes like some sort of sensation and it just feels good.

I know my boyfriend loves it, I kiss/suck his neck and he moans out loud ;) He gets noticeably more turned on and aggressive when I do this. I don't know exactly how every guy reacts but he also considers it one of his "weaknesses". He's actually said it is almost as good/better than sex.