What have we learned from 50 years of studying porn? ‘Heterosexuality is essentially broken’

While pornography has become far more diverse in recent years, ‘a lot of academic research does not take that into account,’ Prof Alan McKee says. Photograph: Rawpixel/Getty Images/iStockphoto

Sneaking a copy of Dad’s Playboy was the first interaction many people of a certain age had with pornography.

It was for Anna Brownfield, who remembers friends bringing a copy of the magazine into a cubby house some time in the 70s.