Pensioners demanding audio version of kinky novel '50 Shades of Grey'

An audio library has received hundreds of calls about the "Mummy porn" trilogy, where most of the callers were women over 70.

Even bosses at the charity, which provides audio books for the visually impaired, had to order in extra copies to cope with the demand, a major newspaper reported.

"As a library with 8,500 audio books covering over 60 categories, we have to respond to what our members want to read," Calibre's Christine Ronaldson said.

"Our decision to add this popular series reflects this.

"We believe that people who are visually impaired should have the same access to books as sighted people.

"Members can choose not to receive X-rated books, but many others like a story with a bit of spice," she added.