champ0609 said: Initially, yes, but I wouldn't say its a lifetime requirement. I may be wrong, but I doubt sexual attraction is still a requirement among couples who've been together for 60 years. And if it isn't at that point in life, it must be something that slowly fades as a requirement.
Studies seem to indicate that levels of geriatric sex are directly correlated to levels of mid-life sex. Couples who are having sex in the 90th percentile for frequency in their 40s, if they are still together in their 70s, will still be having sex in the 90th percentile for frequency amongst their cohorts. Because I am sometimes nerdy to the point of idiocy and sexual incompatibility was the major fail in my first marriage, I went through a phase where I would ask every middle-aged man who made it to second date with me a question along the lines of "What has been your preferred sexual frequency in a monogamous long-term relationship after the infatuation phase has ended?" and most of them right away knew and offered their honest answer and also offered exceptions to their personal rule that were revelatory and similar (of course, the major red flag here with a man over 40 would be the answer "I don't know. I have never gotten past the infatuation phase."-lol ) One older man I dated, was hard-wired in puberty to be attracted to women who vaguely fall into the same category as Marilyn Monroe and Jane Mansfield and he married and had 3 sons with a woman who looks like Diane Keaton because he affectionately loved her and felt protective towards her after her brother died in a car accident. Fail. Do not do this. Be cruel to be kind in the long run.
OTOH, although there is a fairly large minority of men who are absolutely core never able to adjust their preference to any woman over the age of 22, I think most men are reasonably flexible and able to adjust to a few pounds here or there and the effects of aging given that they are with somebody who initially matched their fancy. Also, what RickUK said is very true. Human beings are very impressionable and often not very self-aware about their acculturation and biases in all things sexual. For instance, the popularity of girl-on-girl porn in the 80s and 90s had a fairly huge effect on the sexual behavior of that generation of American men and the MILF trend influenced the next batch etc. etc. Women are just as "bad" and "superficial" in terms of wanting their dominance in the form of Valentino, James Dean or 50 Shades.
I'm not doing a fantastic job of getting to my point here...but, it seems to me that once you get past "To be objectified or not to be objectified" as point of debate, then it all gets much easier. One of the best pieces of advice I ever got from a male friend on an occasion when I was complaining about my current partner's comments about my appearance was "But...if he is commenting on your appearance that means that he is interested." IOW, you are looking at an opportunity for sexual empathy. If his sexual ideal is Marilyn Monroe and that seems seriously daunting on the basis of your appearance, you can still learn to do that play-dumb-sex-kitten thing that she did and you can still let him take you shopping at VS (be flexible but stay frugal!-if it is his thing let him fork out $50 for the push-up, etc.) Doing the difficult thing in any realm will always increase your optionality in the long run. This is the revision or caveat, I would like to tack on to the advice I previously did not really offer to Zalo's partner-lol. I was just in a grouchy mood the other day.