This is my first advertisement and it embarrasses me to reproduce it. No headline, no promise, no information about the product. Certainly, nobody had ever shown a nude in an advertisement before, but, in this case, it was irrelevant to the product – a cooking stove. The test is relevance. To show bosoms in a detergent advertisement would not sell the detergent. Nor is there any excuse for the sexy girls you sometimes see draped across the hoods in automobile advertisements. On the other hand, there is a functional reason to show nudes in advertisements for beauty products. Advertising reflects the mores of society, but does not influence them. Thus it is that you find more explicit sex in magazines and novels than in advertisements. The word fuck is commonplace in contemporary literature, but has yet to appear in advertisements.
Ogilvy on Advertising Page 34 Page 36