The perfect setup for slave to worship mistress feet is when she is wearing pantyhose and high heel spikes
High heel boots are going to be glossy and shining after femdom slave licked then from top to bottom
Those feet are nice and sweaty and perfect for sucking after been wearing wool socks for a whole day
Bald slave is kneeling besides the mistress and using his tongue to clean up the knee-boots she is wearing
Lingerie and a pair of fishnet stockings is the right kind of outfit for a woman to train male slave with foot worship