(By Dr. Anita H. Clayton, interim chair of the department of psychiatry & neurobehavioral sciences, the David C. Wilson professor of psychiatry and professor of clinical obstetrics and gynecology at the University of Virginia School of Medicine) In today's pop culture, sex appears to be everywhere, especially as the 50 Shades of Grey books and movie continue to spur conversation about sexual desires and fantasies. But while our society seems more comfortable with women talking about sex, wanting sex and having sex, many still squirm at the idea of having a conversat...