Public Humiliation
I agree with her, I took control of my husbands cock and sex life totally about 4 years ago, 3 years into our marriage. He is decently endowed, though I've had bigger. I've lent him to some older women friends. I allow him to have me anytime I want it, but he can only cum twice a month. I determine if it's in me or if he just needs to shoot it out somewhere.
Show her the door.
Let her sleep outside for a while.
Tell her you'll cum anytime and any where you damn well please.
While you might not be able to fix your dick, you're never too old to grow a pair.
Grow some balls and your dick may actually get bigger from the testosterone flowing through your body.
It's clear that your wife thoroughly enjoys humiliating you. How do you feel? There is a difference between a bit of submissive play and public humiliation. If you are enjoying this new behavior, than more power to you. If not, I think it's time to move on and find someone to love you for you.
It must really suck to be you ?
Why not tell your circle of friends that your wife has a pushy which accommodate an opened umbrella?
Should they try to confirm her claim,it's ladies first and therefore she has to show her "umbrella space".