It must be love — Naomi Campbell stripped down to make a commercial for her billionaire boyfriend’s new luxury building in Moscow. Supermodel Campbell is seen writhing in bed, swimming in a pool, working out in a gym and getting ready for the office and then on a night out in a Russian TV and Internet ad for Vladimir Doronin‘s swanky apartment building called “Legend of Tsvetnoy.”

PHOTOS: NAOMI CAMPBELL

As the cheesy spot with a breathy female voice-over in Russian comes to an end, a pouting Campbell coos melodramatically in English: “I listen to your heart, Moscow. Now you know where I stay.” Campbell has been dating Doronin for three years, and although he isn’t yet divorced from wife Ekaterina, rumors keep swirling the pair will eventually marry.