PRESS ASSOCIATION -- Mila Kunis snapped at a reporter in Russian for asking Justin Timberlake why he is focusing on movies and not music.
The Ukrainian-born Black Swan star was at a press conference for their new romantic comedy Friends With Benefits in Moscow, where Justin was listening to a translation through headphones but Russian-speaking Mila was answering in her native tongue.
Before Justin had heard the translation of the question Mila snapped in Russian: "Why movies? Why not? What kind of question is that? Why are you here?"
The 27-year-old actress earned herself a round of applause from the room and once a confused Justin had heard the delayed translation of what had been said he pointed at Mila and smiled: "This is my bodyguard."
Meanwhile, the pair have kept people guessing about the status of their relationship when they were spotted having dinner together at Nobu in London, after arriving to promote Friends With Benefits in the UK.
After appearing at BBC studios together, Mila and Justin, 30, arrived at the Japanese restaurant in Berkley Square separately but were spotted "cosying up together" and acting like a couple once inside, fellow diners told the Daily Mail.
Justin split from Jessica Biel in March this year after four years together, but he and Mila have insisted they are just friends.
They shocked the audience at the MTV Movie Awards earlier this year as they flirted on stage together.
Justin told the crowd: "Even though we're in the movie Friends With Benefits, Mila and I have never dated. We have a totally platonic relationship, which is why I can do this," before grabbing hold of her chest.
Mila returned the gesture by grabbing Justin's crotch.