Itachi started to reach out to steady Ashiko, but decided against it as he slowly lowered his hands and took a few steps deeper into the water. "First we're going to teach you how to float. It's the easiest thing, and it ought to be fairly easy for you." Women, generally, had a higher percentage of fat on their bodies, and Ashiko wasn't ninja fit, so she should have an easier time learning to float than a skinny little ninja boy.