London, Mar 8 : Supermodel 's billionaire Russian boyfriend Vladislav Doronin is married, it has emerged.

The catwalk queen and Doronin have been dating since last May, and the 46-year-old tycoon himself talked about buying her an engagement ring.

However, Ekaterina, who claims to be his wife and the mother of his 12-year- old daughter, has told friends that she will not divorce her hubby.

"This is just a ridiculous affair. Vladislav is married to me and we are still a couple," the News of the World quoted her, as saying.

"Naomi is deluding herself if she thinks she can take my husband. But it is adultery and Naomi is flaunting it. It is sick and it is embarrassing," she said.

She added: "Vladimir and I are not even legally separated. How can she possibly think she can get engaged to my husband when he is married to somebody else?" (ANI)