Sex: How It Works

We've been doing it since we first walked the Earth. It gives us pleasure and it gives us life. But how much do you know about how sex works? Now, National Geographic Channel takes a fascinating look at one of the world's most popular pastimes: sex. Through gripping real-life stories and simulations, we journey from first times to playing the field, and all the way to humankind's ultimate goal, procreation. We'll learn anything and everything you've ever wondered about sex.

Top Cast

Matt Reeves

Narrator

Alia Ataya

Herself

Beckster

Himself

Jackson Kirkman-Brown

Himself

Barry Komisaruk

Himself