Nothing wrong with it! Its normal and healthy. I was told and I dont know if its true, that if a man masturbates before sex he will last longer. Maybe you guys can educated me on this. Could be a myth.
I used to feel like a failure when hubby masturbated in the shower and yes I have seen him do it but never commented on it. As I have gotten older and my married has matured Im fine with it.
Women do it too....

Its healthy!!!