Hey, why am I not a cool bro?!
I'm late to replying to this but, you want to be a Cool Bro?
You're right, it isn't normal, but so it finding feet arousing. It may be human feet, but almost everyone you ask would say the same thing.
This.
Everyone finds different things arousing.
Speaking of these 2 special interestes I got a friend with a furry and foot special interest, who knows what else he has..