From royal mistresses to White House scandals, ancient texts to the internet, the history of infidelity is loaded with pants-dropping numbers. And the science behind the salacious history and shockingly common behaviour will surprise you.

 Infidelity gets a whole new look in the digital age, but one infamous hack shows just how risky internet affairs can be.

American Presidents are famed for their philandering, but for decades a secret bro-code protects those in power - and punishes the women who try to speak out.

France is home to some of the most noted side-pieces. Find out how Madame de Pompadour becomes the most successful mistress in history, the business acumen of courtesans like Cora Pearl, and who Henry III of France called his Mignons.