I quite literally just did a presentation on that exact advertisement! It was a presentation on how "sex sells" (it was for an advertising/public relations seminar).
If anyone is at all interesting, there's been a study by this researcher, M.S. LaTour, who did a really in-depth, scientifically-based study on "Female nudity, arousal, and ad response." (Journal of Advertising, 19.4 (1990), where the study investigated the arousal feature of certain advertisements, obviously not including the one in the original post, but studied male and female physical and emotional arousal produced by certain images (such as seeing pubes, breasts, the phallus, etc). It's an incredibly interesting study. While some people will suggest that their purchasing behavior is not influenced by such advertisements, the study shows that such influence is unconscious, isolated from the viewer's personal opinion (whether moral or social) on the image. Basically, it's saying that your purchasing behavior is not dependent on whether you approve of such an image being publicly established as a socially approved advertisement but rather your unconscious behavior will rule your purchasing behavior. You should also look into Jean Kilbourne's Killing Us Softly advertisement videos, which are incredibly interesting as well, but more focused on females in advertising.
I'll stop while I'm ahead. Sorry, but I really enjoyed the topic.
And I didn't have to wear a suit for this presentation, so it sticks out significantly in my mind.