Madame Marissa wanted this guy to talk because she was sure he had information that was of importance to her. She had to get it but the guy denied to talk to her. She was getting impatient so she used her spit fetish to show him that she was determined to get the information. The poor guy had never been as humiliated as he was with him when she dominated him with her saliva which he had to lick and also swallow. He talked after the humiliation.