If one question has haunted man since the dawn of time it's 'what do women want in bed?' Tamar Gass Intimacy and Relationship Specialist tells us 10 vital things every woman wishes men knew about sex: Women don't want sex all the time Unlike men who are fertile every day all day long; women are only fertile a couple of days per month. So while a man's instinct tells him he wants sex all the time because he wants to propagate his genes a woman's monthly reproductive cycle and hormones mean that a woman craves sex more when she can