While this sex fact is neither entertaining nor humorous, it's shocking to note that homosexuality remained on the American Psychiatric Association's list of mental illnesses until 1973.
Today the government issues "Support our Troops" paraphernalia; however government-issued brochures and videos featured a slightly different slogan during the WWII era – "Don't forget – Put it on before you put it in." During World War II, many soldiers returned home with venereal diseases, costing the government millions of dollars in medical expenses.
Hate the gym? You burn about 200 calories during 30 minutes of active sex.
Check out 10 Unique health benefits of sex >>
Burlesque costumes are the epitome of sexy – think Dita Von Teese and lingerie; however, a few centuries ago, the outfits had a slightly different purpose. According to the Museum of Sex, merkins (the bottom half of burlesque costumes) were originally created as "pubic wigs" for 15th century prostitutes. The designs helped hide pubic lice and syphilis symptoms. Make sure to share this information with your boyfriend the next time he heads to Vegas with the boys.
In Hong Kong, adulterous husbands get more than a steep monthly alimony payment – a betrayed wife is legally allowed to kill her husband if he cheats on her – but she may only do so with her bare hands.
The sale of sex toys and vibrators is banned in Alabama and Mississippi.
Check out this hilarious sex education film from the 1950s!
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