During World War II there wasn't the widespread distribution of that load of bullshit which today is known as political correctness.
The US Government's acceptance and indeed its open endorsement of the pin-up girl during those years is an excellent example of this.

Back then, this nation's government understood the US military man and allowed him to express himself rather freely by posting pin-ups
all over the barracks and by painting pin-ups on his aircraft. (FYI: the term 'nose art' was not used during the war, it was coined
afterwards...) This, along with the appearance of 'cheesecake' in various military publications clearly indicates that the pin-up girl
was openly endorsed by a US government which was much more concerned with the morale of its fighting troops than with the possibility
that someone might be offended by the sight of a scantily or non-clad gal painted on an airplane or displayed in the barracks.

After all, what normal, red-blooded guy doesn't like to look at a pretty gal? It's the most natural thing in the world, and whether she
be printed on paper or painted on aluminum, an image of the shapely form of a lovely female was as good a substitute as any when the
real deal wasn't readily available... especially to a fella who was overseas and hadn't seen a real gal for months or even years.

The men training at Camp Curtissair, an AAF Technical Training Center in Buffalo, New York, were no different from any other military
men around the world. In 1944 they crowned 'Miss Warhawk', their pick of the many lovely ladies who were employed at Curtiss-Wright in
Buffalo. They also picked a couple runners-up, both of whom would have made this fella agonize over making a choice.

Images taken from the March-April 1944 issue of the 'Curtiss Fly Leaf'.