"So my conclusion is that the defective Y-chromosome causes your body to produce both testosterone and estrogens, and that the testosterone takes care of your primary sexual characteristics, while the estrogen takes care of your secondary sexual characterists - breasts, hairless body, soft skin and low muscle mass. How you want to live your life I leave entirely up to you and your mother."
"That was quite a story," Mary-Beth said. "It tells me that in a few months my son will have the outward appearance of a girl, but with the sexual desires as a boy."