I have some new Goddesses that have come to me to be trained in my ways. They will need some tiny slaves of course. So I've captured and enslaved some people and I'm training them to be slaves.
Lesson #1 that any tiny slave must learn. Is how to clean a Giantess' smelly dirty feet. It's a big dirty job that must be done regularly and thoroughly.
Some micro slaves even come to enjoy it. Like a ritualistic ceremony of honouring their Goddess.