I don't know you, obviously, but the first time someone touches me and I don't like it, I'd say, "Please don't touch me." It's your body. It's not clear that he's a licensed therapist--Nat. Am. medicine man? No one is forcing you to see him if you don't want to. If you don't like seeing him or feel uncomfortable, just stop. You don't owe anyone an explanation. It sounds like you have a therapist elsewhere. You can learn about cultural info. elsewhere if this man makes you feel uncomfortable.

Eleanor Roosevelt said (assuming she's talking to adults), "No one can take advantage of you without your permission."

my 2 cents. . .