In my experience most of the girls whose feet I have tickled tend to gasp, groan, grimace, hyperventilate, etc. while their feet are being tickled. They may giggle briefly until the tickling gets intense and then they start to groan and grimace, etc. One of my favorites used to grit her teeth, throw her head back and clench the sheets with her fists and groan when the tickling got intense. For some reason this type of reaction turns me on more than laughter. I also enjoy laughter, but the other type of reaction get me off more. Some of the girls in the Tickler-in-Black clips where he challenged the models to keep their feet still while he tickled them responded in this way. Any thoughts on the type of reactions that turn you on the most while tickling feet?