PrimeWire

You can now watch the entire Sex How It Works movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

National Geographic Channel?s two-hour special Sex: How It Works explores sex like never before through gripping real-life stories, new technology and cutting-edge computer graphics, journeying from first times to playing the field, all the way to humankind?s ultimate goal ? procreation