Let me suggest that you try having another man join you, one with more than normal endowment. Having another man satisfy your wife is not for everyone, but it can be a very fulfilling solution to your problem. I have been in the role of the second man for wives and girl friends since I was a teenager. Many of my couples have been regulars for years. Seeing your wife with another man, being able to watch, knowing that the man has no interest in 'taking your wife away' from you, can be very exciting for the husband as well. Think about it. It may be much better than having your wife live unsatisfied, sneak out on you, or use some phony rubber device.