Even a foot-centric tickler like me gets that. It's simple to me, really: They are the only tickle spot that's not centrally located on the body (knees and backs of knees, sure, but they are still a bit more central). Even I view torso/thigh/butt tickling as more intimate and dominating for a 'ler, as you're more in contact with each other, so there's more of that dom-sub dynamic/connection that can be hot when the chemistry is right. Even though I always have gravitated toward feet, there's more distance, and sometimes the lee can separate herself from sole sensations. However, the torso offers more "chaotic" potential. For me, feet are the most sensual area for tickling, but the underarm/collarbone/breast/side breast/neck area, to me, is the most intimidating/electric area as a 'ler, considering that arms are the first things a lee usually uses to protect herself against an attack, but she's helpless, and the right combo of brushes and finger strokes, well, you know the rest....