Even the most useless males out there can have some use as a slave to a woman. Leya has many slaves, and she tends to relegate the less useful ones to the most menial tasks. This slave's goal in life is to ensure that her feet are clean. That's it. He waits for her to come inside and then he licks her dirty feet clean. Then he goes back to waiting like a good slave should, waiting until he can be of use to Leya once again.