The Mrs and I haven't had a physical relationship in a very long time (and I'm only 40!). The last couple of times we did get together, I did my best for her, but wasn't able myself.

For me (I think) it has to do with past performance anxiety. I used to finish too early a lot. But we were younger and had more time to practice.

Now that the frequency has all but stopped, I try so hard not to "fail", that I don't succeed. Make sense? At least that's what I think.

In a way, it's kind of good that we don't, it takes one more self esteem arrow out of my heart not having to worry about it. Not ideal, but...

Good luck, and keep trying. If variety or novelty is open for discussion, I say go for it while you still can and are interested.