Some of the Boys tried to justify the girlie art in their magazine ads by claiming it was for "the troops overseas." But during WWII, "the troops overseas" got specially-produced "pony-edition" copies of stateside periodicals with the ads deleted. The GI magazine "Yank" published its fair share of cheesecake -- Milton Caniff's comic strip "Miss Lace" was more sexually explicit than anything published back home that wasn't sold in a plain brown wrapper -- but at least they were up front about it.
"Yank" didn't have the slightly-sexy tire ads, but it did have its famous full-page pin-up in every issue. Some were movie stars and some were "girl-next-door" types.
Probably the origin of the "I only buy "Yank" for the articles." excuse...