Supermodel Kate Moss is reportedly teaming up with her boyfriend Count Nikolai von Bismarck to work on a coffee table book of photographs.

The 41-year-old has been romancing Bismarck, 28, for several months, despite her marriage to musician Jamie Hince not officially being over, and the pair are now planning to collaborate professionally too, reports femalefirst.co.uk.

"Nik has been obsessively taking photographs since he was 13 and has been documenting much of his time with Kate. She loves his work and thinks he's managed to capture a side to her not often seen," Britain's Grazia magazine quoted a source as saying.

"They both like the idea of doing something special with his pictures of her, perhaps a coffee table book. It's fun for them to collaborate creatively," the source added.

Though the couple had previously tried to keep their romance a secret, they were photographed holding hands in Brazil earlier this month, and Moss is no longer worried about hiding their relationship.

"It's unlikely Jamie will appreciate such a public display of affection but as far as Kate's concerned, it's none of his business," the insider said.

"Her romance is a welcome distraction from her pending divorce - she's fallen hard for Nik and doesn't care who knows."