Kiya is right.
It isn't always true, but you can usually tell the sex of the author from the way they write characters (Or at least that's how I do it <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />). It is very rare for a man to write women well, and vice versa.
Both sexes understand each other imperfectly - and it shows <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />