naomicampbell_movingtorussia.jpgThings seem to be heating up between Naomi Campbell and her billionaire boyfriend, Vladimir Doronin.

They may not be getting hitched any time soon, but reports are swirling that the couple plan to move in together in Moscow.

"Naomi and Vladimir are inseparable and she has been spending more and more time in Moscow," a friend revealed.

"He is building a new place there and wants it to be their new home. Naomi is ready to settle down and is completely in love with him."

The pair have been dating since May 2008. Naomi hit the runway for a special charity show in Moscow last month (pictured left).

[Photo: WENN]