LONDON: Megan Fox believes women are more dominant in relationships because they "have vaginas".
The 'Jennifer's Body' actress claims men are driven by sex, which their girlfriends or wives can use to their advantage.
She said: "Women hold the power because we have the vaginas. If you're in a heterosexual relationship and you're a female, you win."
The 23-year-old star also insists her sexy reputation is unfounded, and says she can count on one hand the amount of men she has undressed in front of.
She added: "I never call them guys. I always called them boys. Maybe it's a superiority complex - my needing to keep them down."
Megan - who has an on/off romance with actor Brian Austin Green - loves being in a relationship, and finds it easy to not flirt with other guys when she is committed to a man.
She explained to America's Cosmopolitan magazine: "I can flip on a switch in my brain, and even if the next Brad Pitt is standing next to me, I won't look at him. But I can also turn that switch off, and then I collect attractive boys.
"It's fun when someone intends to put you in his back pocket, but instead, he walks away wounded. I make it a mind game so they don't know if I'm hitting on them or mocking them."
Although she insists she is a one-man woman, Megan has no problem discussing which Hollywood stars she finds attractive.
She revealed: "I'd like a sexy sandwich with Andy Samberg and Jonah Hill."