A man's testicles increase in size by 50% when he is aroused.
The word "fart" comes from the Old English "feortan" (meaning "to break wind").
Among sexually active adults, lesbians have the lowest incidence of sexually transmitted diseases.
"Venus observa" is the technical term for the "missionary position."
An unobstructed penis is capable of shooting semen anywhere from 12 to 24 inches.
Sacofricosis, is the practice of cutting a hole in the bottom of a front pants pocket in order to masturbate in public with less risk of detection.
The first condoms in the U.S. were made in the 1870s from vulcanized rubber. They were expensive, thick and intended to be reused.
The Kama Sutra details techniques on ten types of kisses, 64 different caresses, eight variations on oral sex, and 84 positions for intercourse.
"Siderodromophilia" is sexual arousal derived from riding in trains.
"Erotodromomania" is the abnormal impulse to travel to escape painful sexual situations.
