Hello, I am having a lot of trouble finding good positions for me and my bf to do. He is 6'9'' and i am only 5'4''. He gets leg cramps during missionary. My legs are too short for cowgirl (my knees don't even touch the bed when i am on top of him). I have some extra meat on my bones; so i am not the most flexible. The best position i have found is with me on my back and legs up, and him standing up at the edge of the bed... but, we recently got a waterbed; and that is out of the question. We also find that the waterbed throws off our rythem during doggy style. Any ideas?