Mila Kunis addressed Justin Timberlake with a "girlfriend bark" as they dined together in London, according to onlookers.
The pair are currently in the UK on the European stretch of their tour promoting comedy Friends with Benefits, where they star as two pals whose relationship becomes physical.
Rumours have been
rife that the actors are dating in real life, although Kunis and Timberlake have always insisted they are just friends.
However, as the stars dined at London eatery Nobu with pals last night, onlookers were led to believe they are an item.
"They were cosying up to each other and she barked at him 'Jay' to follow her. It was like a real girlfriend bark," a source told MailOnline.
