I prefer tickling bare feet. I dont particularly enjoy tickling a girl in stocking feet, because I feel like there is something between my fingers and her soles. I'm one who also believes that the lee will feel it more on her bare skin, then if she had stockings covering them. In addition, I probably have shall we say a favoritism towards bare feet, because I have a fetish for ladies feet in addition to tickling, so I like to get my hands on a pair of nice bare feet. This of course is only my opinion though.