Does anyone know of a story about this girl in a spa, who gets bored and wanders off, and finds a woman who just got a spa treatment and is laying in this thing of mud which hardens and she isn't supposed to move or it gets messed up. But this young, mischievous girl comes and starts tickling her feet and she is insanely ticklish and tries not to move. I also remember that the girl pretends to be one of the people who works at the spa. Does anyone know what I am talking about? It would mean the world to me if someone could find this story! At least give me the name, the author, etc. I know it was posted on this website some time ago, but I stupidly never saved it!