When Ester, Natalie and Simone get a new slave, they have to teach her her place. They put her in her bikini uniform and on her knees. Each lady takes their turn in making her suck their toes and lick their soles clean. Her pink little tongue tickles and makes them laugh. She knows that she has done a good thing when her new mistresses laugh and smile at her.
Mistress Christy has been walking around town in her bare feet making the soles of her feet all dirty for you. This young mistress gets into town waiting for a bus and sits down putting her dirty feet up and commands that you lick her dirty feet clean humiliating you in public. This outdoor femdom doesn't care if she publicly humiliates you, she wants you to prove that you are worth being her foot slave.