Think the correct answer has to be, as long as the relationship is brother/sister type of relationship then yes, if the friendship is not defined like this then no, unless either individual can look past their feelings which occur in the course of the friendship and they value the person enough to keep them as a friend.
It is possible. It helps when you're not attracted to each other! But I get what you mean by asking this question...usually when a guy and a girl hang out a lot, even "as friends," it's because there's an attraction there. Of course, this is coming from someone who became best friends with a female roommate, and after eleven months, we couldn't stand to see the other with anyone else. We're married now, been living together eight years. And we weren't attracted to each other in a romantic sense at first. The nice part about living with someone before you become romantically involved--you don't have to spend time getting to know the "real" person, because you haven't been presented with the "best version" of that person that you get when you date them.
A girl and a boy can be a good friend the society should let them to be their friend. It is always seen that when ever a boy and a girl are friend from childhood our friends think that they got in love to each other and they excites the boy or girl too to get into love. Then tell me who is responsible for this.