padlock therapy

Some years ago I did an amateur piercing behind the frenum of my cock. I gradually enlarged the hole until I could fit a small padlock through it. It was uncomfortable but it prevented masturbation as it was quite painful to move my hand up and down. I am married now and I have shown this piercing to my wife. This prompted a discussion on genital piercing. I asked my wife if she would have a piercing (or two) "down there". She has agreed and when I return from working away I will take her to have it done. Her inner lips are completely covered by the outer ones so I thought that if she has two large rings this may reveal them more. The other problem is that she is fed up with cumming so soon before I fill her with sperm. In fact it has been such a long time that she has had any sperm inside her that it has become a real problem, especially as she thinks that a vagina full of sperm is a healthy vagina. She thinks that it is because I am so involved with porn sites. So when I suggested that when I return she inserts the luggage padlock in my cock piercing and wears the three keys on her necklace she readily agreed. She says that we should try it for a week and see if there is an improvement. She also said that the genital piercings will probably make her more aroused all the time as they will cause friction with her knickers. She also said that we should only have sex twice a week and at the weekend, instead of every night. It looks like the padlock is going to be a permanent piece of jewelry for me. What do you think ? Will there be changes in our relationship ? Is my wife becoming more dominant or just trying to improve our sex life ?