Hey Jack sorry I took so long to reply. She's a awesome little Lee. Her right foot is like an 8 on a scale of 1 to 10 for ticklishness but her left foot is OFF THE CHARTS! I'd have to say that her arch and under her toes are equally ticklish but if you pull a feather between her toes she goes nuts. Feather ticklish all over but her feet are the most sensitive. The other day she indulged me as she layed on the bed after a walk. I took her socks and sneakers off and used a feather and asked her to hold still as best as she can. I started feather tickling her right foot all over and she was giggling like a school girl. When the feather hit her left foot she was howling with laughter, tears in her eyes and (my favorite reaction) pounding her fist on the bed. Man that was fun!