Sex itself

When it comes to sex, everyone sometimes feels awkward: we don''t want to seem ignorant, insecure, afraid that we won''t be accepted, won''t understand, or just that it will be "not very". Even discussing what''s what with partners does not always have the courage. But why are we so shy about talking about sex? Where do sexual fantasies come from, how do they help us and can we divide them into "n...