Harry Styles and Cara Delevingne been 'dating secretly for months'

One Direction star Harry Styles has been secretly dating stunning model Cara Delevingne, it was claimed last night.

The couple were allegedly spotted together at the theatre last week and there is growing speculation the romance may have been going on for months.

Pictures on Twitter appear to show them sitting in the dress circle for a performance of Book of Mormon in London’s West End.

Harry is on his phone as the blonde beside him, believed to be Cara, sips a drink.

And it seems the date wasn’t a one off with a source telling the magazine: ‘They have great chemistry. Sure, they've always agreed to keep things super-casual and private because of their crazy worlds, but Harry genuinely likes Cara a lot - he has done ever since they met three years ago.