I'm vanilla as fuck but I usually have 1 different thing I want to try that I'll ask for in a sesh. Might be a small thing like having the girl wear their hair in a ponytail or to try a new position.
I much prefer when a girl has a new routine, I had one WL i visited who asked about other girls routines and would try to copy things such as a nuru body slide. Made for an interesting series of sessions.