I would never be able to share my therapist myself. But if your T is okay with seeing 2 members of a family, then why not try it? But don't give away something that you want all to yourself. There are plenty of good therapists. Remember that while you're saying your T is the best, I'm sitting here thinking "No,
my T is the best."

You can still provide your son what he needs without taking away from yourself. But the best bet is to talk it all over with T and get his opinion.
Sidony