Although I defer to your excellence in all matters thus far, I would tend to disagree.
Although 30s is the sexual peak - I believe a large majority of women are willing to have sex ONLY IF they are emotionally fulfilled.
My W, and everyone of her friends is that way - if she is mad, feels like I'm not listening, if I say something unkind, etc - no nookie that night!
What I think happens in an affair is that women are willing to have sex because they think that will make the OM willing to LISTEN to them and thus emotionally fulfill them - basically it's a pretty sick trade-off.
I'm probably the weirdest guy ever - I self-imposed celibacy even though W was willing. I told her it wouldn't happen until we were friends first because I didn't want a relationship based on nothing but sex. There were times where I seriously wished I hadn't made that commitment!
Also, I think guys would probably have sex with a post as long as it stood still long enough - most women I know require a pretty good chunk of trust to allow that.
