Looking for a story/stories

These are pretty old on the forms, but there was a whole fantasy series based on this girl who got transported to a land where they tickled you until you passed out and a gem would pop out of your head, and people would take your power by doing so..:/ pretty loose description I Know. Anyone know what i'm talking about?

That would be the Tenderfoot series by Yatsabel. One of my favorites.

There's a pdf of the whole first series here: http://www.ticklingforum.com/showthread.php?123492-Tenderfoot-(Fantasy-Tickling-Novel)

There are a few spin-offs as well. Just do a search for "tenderfoot" and you'll find them all pretty easily.