.Just be polite and tell the mistresses the direction you want the session to take. As the tickling progresses, they and you may have ideas for different things to try. Communicate with them and have fun. Keep us posted as to how this goes.

Depending upon the rules of the house and your enjoyment of the session, tipping is polite thing to do also if you plan on building a longer term client relationship with the house/mistresses.
Myriads