"Certainly, sexiness is not simplistic. But none of this takes full account of
the vagaries of desire, and the unexpected places where its pitiless gaze
lands. I once organised a dinner in Downing Street which Mrs Thatcher
hosted. The next morning, one of the guests called and said: “My God! She’s
amazingly sexy. Did you see her hands?”
Cute article.
I think Sophia Loren once said that sexiness is 10% what you have and 90% what people think you have. I think it's a combination of certain basic physical things and then the cerebral (and by that I don't mean brains necessarily-just all the things that are mind-based, like chemistry).
Many things are not sexy, just slutty.
And chemistry remains a matter of personal taste-fortunately!
This means that are matches out there for everyone.
But the trick for humans is not having chemistry, it's having staying power.