How can I get a vfat pendrive to automount as posixovl filesystem?

I'm using Kubuntu. I'd like to use my pendrive primarily for storing various data for my Linux (and not losing metadata like permissions and ownerships), but I don't want to exclude access to it from Windows - e.g. if I hand it to someone at a print shop to have some photos printed, I don't expect them to have anything to read ext3 or such.

It appears fuse-posixovl provides such functionality, as a modern replacement to antiquated umsdos: the FS is visible as generic FAT from Windows hosts, while providing about all Linux features when used on Linux.

Except mounting the partition is a two-step operation, first mounting the vfat, and then mounting the posixovl overlay right over it. In essence without automount the invocation looks something like this:

mount /dev/sdb1 /mnt/pendrive -t vfat
mount.posixovl /mnt/pendrive
# ...perform operations on the pendrive
umount /mnt/pendrive
umount /mnt/pendrive

Automount obviously handles the first step, and I can "safely remove" the volume twice to have it vanish from the file manager, but how do I get it to mount as posixovl (2nd step) when I plug it in?