Drake and Rihanna have been acting like a "loved-up couple" behind closed doors. The 'Take Care' rapper is rumoured to have rekindled his romance with the Bajan beauty - who he was first linked to in 2009 - and though they have mostly kept their union private, they were spotted out together in London restaurant Nobu together on Saturday, where they walked in "hand in hand", before joining a group of friends for dinner. A source said: "Rihanna and Drake walked through Nobu hand in hand and sat down with a couple of friends for a meal. "She looked completely at ease in Drake's company and he had his arm around her as they sat. They were behaving very much like a loved-up couple." The pair were first spotted out together when Rihanna joined Drake at a nightclub in Paris last month, where Drake was making a personal appearance for the venue's first anniversary, and they were also seen together in Amsterdam last week. The rapper said recently: "I mean, I think about it. Like, 'Man that would be good.' We have fun together. She's cool and s**t. But we're just friends. That's my dog for life.”