From time to time I dip into daytime TV to shows like Oprah and Ricki Lake to learn a bit about Americans.
Does that answer your question?
I think, apart from too much make-up and too much lard and too much self-absorption, there is a lack of sexuality throughout America, legitimized by the Puritan movement of the settlers and perpetuated by moral uplifters, most recently by Feminists and child protection zealots (Orwell's Junior Anti-Sex League).
Even the sex symbols, the Marilyn Monroes have as much real sexuality as a hygenized lump of plasticine. I was once taken to Hooters when I was in North Carolina, but I may as well have been served by Barbie dolls - there was little heartfelt intent behind the commercial boobie fest (for the British, hooters and boobies mean precisely the same). I digress. Much more interesting topic, but not really relevant to the question unless you are a silicone fetishist, which I am not.
My first girlfriend was French, and she understood the value and meaning of sexuality because they are taught at length about it during school philosophy lessons, and so it does not scare them or disgust them.
I wonder sometimes if the only women considered attractive in America by Americans are prostitutes. If it's commercial and money is involved, sex is ok. It's enterprising.
Really fabulously attractive interesting women such as Morticia Addams and Betty Suarez slip under the radar because they are so clearly "unamerican".
The worst attributes of British women are precisely those inspired by or copied from Americans, particularly when it comes to values and attitudes.
Which is a pity, since one feature of many American women - their positivity and a hunger for the old ways of doing things we can still just about take for granted here, could be and is very attractive to certain Englishmen such as King Edward VIII, John Cleese, C S Lewis, most of the Beatles, a morris dancer leader called Elmo, who all married Americans. Maybe some lesser folk too (although I wonder if American women would consider them desirable, or losers?)