![](https://image.tmdb.org/t/p/original/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![](https://image.tmdb.org/t/p/w342/miRzqPmVPd91VOKOIZqHzLFgPkF.jpg)
Why is Sex Fun?
Maggie Gyllenhaal hosts a revealing investigation into the mechanics and chemistry of female orgasm.
![](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![](https://image.tmdb.org/t/p/w300/rvx9kUMiQ5ri9FflqCnOlJyvCiv.jpg)
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![](https://image.tmdb.org/t/p/w300/zG0TOz6X3I7Job1maWVyhukI0yk.jpg)
Other episodes for this season
![Did God Create the Universe?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Alien Invasion: Are We Ready?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Why is Sex Fun?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![What Sank Titanic?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Parallel Universes: Are They Real?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![What's Beneath America?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![How Will the World End?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Atlantis Uncovered](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![I, Caveman: Back to the Stone Age (1)](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![I, Caveman: The Great Hunt (2)](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Egypt: What Lies Beneath](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Can You Live Forever?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![World's Dirtiest Man](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![How Evil Are You?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Life Before Birth](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![What's America Worth?](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
![Your Body on Drugs](https://image.tmdb.org/t/p/w300/tk0ZpdiEIhu8FtOQg4DPWpOZ2nx.jpg)
Maggie Gyllenhaal hosts a revealing investigation into the mechanics and chemistry of female orgasm.