Chastity and orgasm denial discussion

I was considering getting a PA piercing and wondered if using a large diameter ring could stop intercourse. I’d assume that with a 6” diameter, you wouldn’t be able to stick your dick anywhere. Such a big ring might even get welded in place, meaning the only way it comes out is by cutting. While this wouldn’t stop masturbation, I can picture my wife saying “There. You will never fuck anyone again” as the welder finishes up. Then I’d have to watch them make love. Thoughts? Does anyone know of a PA setup designed specifically for preventing intercourse?