I am a female and my T is a female. As our relationship has grown, she has increased comforting touch - sitting close, hand on back when upset, hug after every session. During one particularly difficult session I did lay my head on her shoulder for a very brief time. It helps me when I am upset and it feels appropriate to the situation. There is not touching unless it is comforting (except hugs at end of session.) I think it depends on the personality of therapist and how much trust/level of comfort you have with your T.