SEX

People in the past had a way with words when it came to describing activity between the sheets.

In the animal kingdom, it’s not that unusual to start out as one sex and end up as another.

To curb teen pregnancies, schools in the ‘80s forced kids to care for another delicate dependent: an egg.

“Showgirls” was one of the biggest box-office bombs of the 1990s, but this 1995 erotic drama about an exotic dancer turned Vegas showgirl has since become the stuff of midnight movie gold.

Each December, "Baby, It’s Cold Outside"—a ’40s-era American standard that some modern listeners hear as a depiction of sexual misconduct—invites a barrage of controversies, radio bans, and think pieces.

The therapist gave advice about masturbation and contraception at a time those subjects were still taboo.

From critter-killing copulation to beautiful “bladder songs,” here are some of the strangest facts about sex in the animal kingdom.

In the 18th and 19th centuries, much of the world worked itself into a tizzy over the idea of people touching themselves.

You don't see too many Tunnel of Love rides at amusement parks today, but they once served an important—and risqué—social function.

Calling anyone who has ever wished Mr. Darcy would appear on the misty horizon and ask you to marry him.

Victorians had many manuals and advice books that discuss sex with surprising frankness. Here are 11 bits of Victorian sex wisdom—good, bad, and otherwise—published between 1837 and 1901.

An echidna’s penis doesn’t have to excrete any urine, which may help explain why it’s fancier than a human’s.