So, at the beginning of a session with a new model I just let her make herself comfortable naked on the sofa.
I take the first shots from the side, to not go too directly for the more intimate views and to allow her to begin to take more open poses without me being frontally looking at her openness. I ask her to move a bit, change the positions of arms and legs, to follow the shapes of her body with her hands, so she can feel what I see...
A bit later I ask her to change to another position and come a bit closer to her.
Finally, when I feel that she is ready, I go for more "complicated" poses...
Here's a preview from the series for my Patrons of Motivation-Level and up to show how the session started.