In an interview with American chat show host Seth Meyers, Kim told the audience that shooting the fashion spread with a 9-month-old baby was far from glamorous.
As the couple posed in a group shot with North lying on Kanye’s stomach, North decided that she needed to ‘go’ and, as babies tend to do, she ‘went.’
‘He was trying to tell me and I could really hear him. I had to get her and clean him off,’ laughed the reality star.
Kim Kardashian and Kanye West's love story in pictures
The 33-year-old says she didn’t know her photographs would appear on the cover when she posed for them.
‘I knew it was happening of course, but I didn't know it would be the cover. I'm just so honoured,’ she says.
Kim also says she is proud of the photographs as they cover a lot of ‘firsts.’
‘Kanye's the first rapper to be on, I'm the first reality person to be on, we're the first interracial couple.’