It is a universal fact that girls are generally unpredictable. Given their ever-changing personalities, we can never be sure when we should initiate something. This dilemma extends to the idea of sex. If you’re a guy who’s in a relationship for so long and she does not explicitly tell you that she wants the “D”, here are the signs that tell your girl wants to have sex: She wants to have sex if she talks about sex a lot. If…