In this ad from 1936, canned-food company Del Monte lets housewives in on the "secret" to putting a smile on their husbands' faces: Pineapple juice! Pineapple juice is thought to be a home remedy for making vaginas (and semen) taste "better", and Del Monte, knowing that the way to a man's heart is through oral, really laid it on thick in the copy of the ad:

If you want to change grouches to grins — give that man of yours Del Monte Pineapple Juice. Cater to his fondness for flavor. Men like the rich, ripe taste of this juice — the definite pineapple flavor it has. They like its freshness—the bracing refreshment it always brings. You'll know how extra good this juice must be!

We would just like to add that we eat pineapples for breakfast everyday (and we drink up the juice), so if there are any non-gay fellas reading this, holla at your girlz.
Ad: How Would You Like To Put This Smile On Your Husbands Face? (Dec, 1936) [Modern Mechanix]

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