According to Star magazine pop diva Beyonce is a straight freak in the bedroom. A source told the magazine that although Jay-z is the man for the most part Beyonce is the leader when it comes to the bedroom. The source also said she enjoys tying hubby Jay-Z up and that she has sex with him before every performance to relax her nerves. You can find out more about Bey, her life, marriage, and on being a mother to daughter Blue Ivy by watching her sit down on Oprah Winfrey's Next Chapter series on the OWN network tomorrow night at 8pm. And catch her new documentary on HBO Life Is But A Dream also tomorrow night at 9pm.