Is there trouble in Kat-Ranbir paradise?

Their sweet love story has hit a ‘rock’ bottom literally, as the industry is abuzz with rumours that Katrina Kaif is insisting on having a rock on her finger. And Ranbir is supposedly not too keen on the idea. Although the pretty actress has denied the rumour by calling it ‘ugly,’ no one is really convinced. An insider has reportedly said that Katrina is more demanding than Deepika in her