I haven't been attracted to a family member because quite frankly most of them are ugly to begin with. I dunno how they procreated with another human being.
But I have been attracted to a person of an inappropriate age in some people's eyes but I don't see it inappropriate though. In the long run I don't believe age matters that much only in some situations. I handled it the way I handle alot of things. I keep it locked in my thoughts so no one will discover it.