With most of the women I've played with, their pussies aren't exactly "ticklish," per se, but they are incredibly sensitive to tickles. I absolutely love alternating between light teasy pussy tickles, to keep the lee maximally stimulated and horny, and then just brutal, merciless tickling on their most insanely ticklish spot. That said, I have noticed that a lot of women get crazy ticklish on their pussies right after an orgasm, so that's always something fun to check for. 😉