It would seem to me that if someone were going to attempt to fake being ticklish for a shoot that they would do so on a one time basis. A situation like the one being alluded to here would imply the woman was only interested in the pay out and once she was paid would have no reason to stick around. The women being described here are "stars" of their repective companies. It just seems that it would get too exhausting to put on that ruse over and over again in the case of charlee for years at a time.