
When Fifty Shades of Grey was published in 2011, it led to a spike in purchases of Amazon Kindles. People were embarrassed to be seen reading a book filled with BDSM sex, even though it was one of the bestsellers of the century.
Nowadays, you wouldn’t see such prudish Kindle closeting. Popular culture offerings in recent months have been full of kink: from golden showers in TV show Industry to Nicole Kidman on all fours lapping milk from a saucer in Babygirl.