Two young girls that sat through the Menopause

I picked up two young girls, Sisters I guessed, early twenties(ish) who told me that they had both been through the Menopause, shocked, I asked them was it genetic and how did they feel about it? not looking forward to the trip or the discussion to follow!
Turns out it was a show in the Tivoli theatre, (a small theatre otherwise I'd have realised earlier thet were foooling me!)
They said it was very funny and that there were only 2 men in the entire sell out audience.