Woman’s group masterbation workshop.

Embarrassing question, but it’s the internet so here I go. Hi, I am 47 year old heterosexual woman from west Texas, and I really want to go to a women’s only group masterbation workshop. I have seen documentaries (on HBO) and read several arrivals about other people that have been to one, but I don’t know where to find one locally. I know that men have circle jerks and other activities, but where do women find a seminar support group? Has anyone been to one and if so how did you find it. When I search the internet I find mostly pornography. Thank you.