karne, I see that you are winking in your post above, but for the record:
Lysacek's nude photo for ESPN appeared in its 2010 Body Issue, published in October 2010 -- i.e., months after his gold medal in Vancouver. And the photo shoot took place in September, according to this article at the time.
(For anyone who cares for another look at the 2010 image of Lysacek:
I suppose it is possible that he appeared in another nude photo before Vancouver as well??? If so, sorry, I don't have any memory of an earlier one.)
As for why Aaron makes so many of us swoon, I think physical attraction is only one reason -- with his personality, mind, and heart also important parts of the equation. His persona as a sweet gentleman would make posing even tastefully a la Lysacek seem out of character (and somewhat jarring), IMHO.
But I agree with the general point that Aaron has a star quality that could bring a lot of positive attention to figure skating in the U.S. As his training/competitive schedule permits and to the extent that he is comfortable, I hope that his role as a "spokes-skater" will increase.