Just one of the reasons why I may be concerned when I receive a "what is your donation" inquiry is because some clients unfortunately use that as a coded pitch to initiate negotiating. I understand that is not at all where you are coming from Spanky. If one is asking simply to clarify because there is a discrepancy between what is listed on different sites, maybe that can be stated in the inquiry.
It does make sense to me how it could be easy to not look over a companion's website, profile, or showcase if you've already met in the past. But it doesn't hurt to do so. And if she is at all concerned about refreshing her portfolio, there might even be some enticing new images up as a tangential benefit for taking the extra time.