Salvador Dali once painted a picture of Hitler masturbating in a field.
Professional porn actors are 80% less likely to have an STD than members of the general public of the same age.
Humans are unique in that they are the only mammals in the animal kingdom not to develop breasts until puberty, after which they stay permanently enlarged.
Being stressed-out or overly tense can cause breasts to sag during those moments.
In 1985, there was a condom delivery service at Harvard University - their slogan was "We'll come before you do".
Some men experience instant feelings of sadness and regret after sex - this is known as "post-coital tristesse".
Before becoming a mouthwash, Listerine used to be a surgical antiseptic, floor cleaner and a cure for gonorrhoea.
Homosexuality was still classified as an illness in Sweden in 1979. Swedes protested by calling in sick to work, claiming they felt gay.
The world's most expensive porn film to date is "Pirates II: Stagnetti's Revenge", which cost $8,000,000 and ran 138 minutes.
Naked means to be unprotected. Nude means unclothed.
