After about a year and a half with my therapist, I finally asked about hugs, and she was glad to give them. We hug after every session now. I find it to be wonderfully affirming.

That said, had she offered in the first session, I'm not sure I would have trusted her with it. Like you said, he doesn't even know you yet!

If, as you said, he seems better than a lot of the other ones, I'd definitely bring up your hesitation around the hugs.