Naomi Campbell: Thai Vacation with Vladislav Doronin!

A bikini-clad Naomi Campbell hits the beach with boyfriend Vladislav Doronin on Friday (January 4) in Phuket, Thailand.

The 40-year-old British model and her shirtless Russian billionaire beau also soaked up the sun while reading the paper on some beach chairs.

Naomi, who lives in Moscow with Vladislav, recently interviewed Russian Prime Minister Vladimir Putin for GQ U.K.‘s Fashion Special Spring/Summer 2011 issue.

She asked the PM about his exercise routine and his reaction to a group of female Moscow University students who posed in lingerie for a calendar marking his 58th birthday.