Haha serial monogamists unite! I am the same way, though I love being the dominant one too. Something about the idea of a much bigger partner who can overpower me easily choosing to submit to me. How often do you actually meet ladies who struggle? I am an athletic 110lbs, my boyfriend is well over 440 and I've never actually had issues with him being on top using his full weight and strength. Fake struggling is hot though.