Change owner/group of a subdirectory of an fstab-mounted vfat partition

Change owner/group of a subdirectory of an fstab-mounted vfat partition

In all likelihood this is a repeat question, but I seem to be currently
experiencing difficulties forming a search query to locate an answer.
I have a vfat partition mounted to /data containing all of my media, i.e.
/data/books, /data/documents, /data/downloads, /data/websites, etc. The
websites sub-directory is (soft) sym-linked to from /var/www such that my
Apache2 installation uses the directory as its default DocumentRoot. My
fstab entry is currently set to mount /data using my user/user-group
(uid=1000,gid=1000) such that I can freely make changes to any file
without further hassle.
However, I need the /data/websites directory to be mounted with the
www-data user (uid=33,gid=33) such that Apache and my web-documents may
create, modify, and delete files in the directory. My user is a member of
the www-data group (gid=33) such that I may also make changes to the files
in the directory.
chgrp and chown are out of the question as they simply have no effect on a
mounted vfat partition. How can I mount /data/websites with a different
owner/group (uid=33,gid=33) while leaving the rest of the /data mount
owned by my user (uid=1000,gid=1000)?