I am glad your "then-fiancee" is your "now-wife".

My now-wife and I discussed fantasies involving other people recently (apropos of my getting caught looking at pr0n, embarassingly). We came to the conclusion that it wasn't a good idea at the moment, but we would consider it later. I can imagine us saying that to each other until we are 64 years old. A couple of swinging septagenarians we might be...

I imagine lecturing my son/daughter to the effect of: think of sex like chainsaws--fun, powerful, no built-in right vs wrong, but still dangerous. Perhaps it wouldn't be as much fun if it didn't matter enough to make it dangerous. (That being said, I wish I could live a little more dangerously sometimes...)

On a side note, I have managed to change my fantasies to fit closer to my wife's. I will spare you the details, but it suits us...