Chelsea is spread out on the bed and ready for more tickling action. I guide my fingers along her belly and dig them into her ribs, which causes spasms of laughter. Her underarms are probably her most ticklish spot, and I run my hands down her arms and past her elbows, giving Chelsea instant goosebumps. Then I go for the pits and drive her crazy by alternating between light and hard tickling. Chelsea enjoys the experience and says "there needs to be more things like this in the world".