someone who is at least physically attracted to the opposite sex. Despite what some people not everyone is meant to be hetrosexual though most are. Often spelled heterosexual.
Since Kate is a hetrosexual she can enjoy fucking with mike.
A flaming hetrosexual is a person who is so overly fixated at appearing straight and manly that it boarders on gayness.
See flaming homosexual
Dude1:"I am going to Starbucks, you want to come along?"
Dude2:"I don't go to Starbucks I am afraid I might turn gay."
Dude1:"dude, you are such a flaming hetrosexual."