Keep in mind that, when it comes to your sex life, your sun sign — your “main” sign, the one determined by your birth date — isn’t the only sign at play. You’ll also want to look at your moon, Mars and Venus signs Your moon sign illuminates your feelings, emotional needs, and self-expression — your “inner self.” Your Venus sign rules love and desire, telling us what makes you happy, emotionally. Your Mars sign rules action and contact, which means it tells us about what you’re into, sexually. If you don’t know your moon sign — let alone your Venus and Mars signs — you can plug your date, time, and location of birth into a free astrology site or app to find out your whole birth chart