The billionaire has an open marriage with model Katya and they have no plans to split, reported New York Post.

Whenever Doronin is in London, he lives with his wife and their teenage daughter.

The 39-year-old model has had a very public romance with the businessman and he reportedly bought her a penthouse in Brazil last year for USD 18 million.

The British beauty's spokeswoman has recently put out a public statement denying reports that Campbell is planning to tie the knot and setting up home with Doronin in Moscow.

Campbell met Doronin, 47, at the Cannes Film Festival two years ago and the two have been enjoying a whirlwind romance.

The pair were spotted looking very loved-up on a romantic trip to Thailand over New Year, where they met up with Kate Moss and her fiance Jamie Hince.