Madame's instruction of submissive lesbian girl Erica in BDSM and dominance

Madame is a strict lady, who loves to teach submissive girls in BDSM and dominance. Her latest student is a pretty girl named Erica. She came from Czech and she is ready to learn all about BDSM. Lady is not afraid of anything, so she decided to punish her new student. She tied her hands behind her back and then she started to hit her ass. Erica was screaming from pain, but she knew that it is the first step in BDSM. Then Lady put her in stocks and left her there for a few hours. It was a good lesson for young girl, because now she knows that BDSM is not only about pleasure, but also about punishment. Lady is happy with her new student and she is sure that Erica will be the best in BDSM.