I've been surprised with a bi session, that I backed out of. And have been asked if I wanted water sports, cross dressing, and to squirt into another sub's face.

Now I specify I just want a simple caning, with a minimum amount of bondage, and no release. And to announce 5 minutes before the end so I can request something that will make the session over the top.

Dominatrixes are very pragmatic, and like that I know what I like.