I'm sure women who aren't ticklish on their feet EXIST, but in my experience, women are usually receptive to something on their feet. A woman who wouldn't even smile when a feather is applied to her feet may scream in laughter when fingernails are scribbling on her soles. In the same way, a woman who isn't receptive to being tickled on her soles may go wild at a feather dragged between her toes. But I would say that if you can't get a reaction from the feet, well, there's plenty of other places to tickle. :stickout