The slave is being punished for not listening to every command. He has to kneel down and the cruel Dominatrix uses him as a footrest. The dominatrix really enjoys watching the little bitch suffer. Her boots are so dirty, he has to clean them with his tongue. Hopefully for this poor slave the Dominatrix will be pleased with his work. If she is satisfied maybe she will leave him alone for a moment. He has suffered enough already.