Have you heard of that trust/relationship building exercise where you literally have to fall backwards from a standing position? You have to trust that your partner is going to catch you and prevent you from hitting the ground.
It is a fun little exercise that can be uncomfortable for a lot of people, in fact I have seen some people that simply can’t do it!
I think there is some similarities in this to being photographed. The essential element is trust. You need to trust that the photographer is there working for you to make you feel and look comfortable and the remarkable part about this is that when the trust is real, the results really show through.
If you haven’t tried this exercise before give it a go!