Washington, Feb 25: They might insist on being called as friends, but Rihanna and Chris Brown’s closeness shows that something else is brewing between the two.On Feb 10 at Grammys after-party, Chris Brown had said that he and the ‘Umbrella’ hitmaker were just friends.“We’re just friends… We hang out,” Us magazine quoted him, as saying then.But two days later they were spotted walking hand-in-hand into a private room at L. A. hot spot Les Deux to celebrate Rihanna’s 20th birthday party.After the crowd