Hi Squiggle........
Oooohhhhhh the temptation.

I would not do anything without first discussing it with your therapist. I would also be careful about what you and your new mutual friend discuss as far as your therapist. You don't want to learn anything "new" about your T that may affect your bond with her and thus affect your therapy. However, I would think when you are done with therapy........completely.........ask away.