Cheryl Fernandez-Versini is "really comfortable" with Rita Ora.

Cheryl Fernandez-Versini

Cheryl Fernandez-Versini

Simon Cowell has revealed the two girls on the 'X Factor' judging panel have become close friends since filming began for the ITV show.

He said: "It's been amazing. They met first of all just the three of them with a few producers. Then I invited them over to my house one evening.

"I didn't really know Rita to begin with, but by the second or third meeting I thought, 'Actually you're really funny and you're someone who isn't threatened by another girl but likes girls'.

"I think Cheryl feels really comfortable with Rita. They've just gradually started to create a friendship."

And the 55-year-old media mogul - who also sits on the panel alongside BBC Radio 1 DJ Nick Grimshaw - has insisted he had no qualms about "tempting" the 24-year-old beauty back onto the talent show from rival BBC One programme 'The Voice'.

He added to The Sun newspaper: "With Rita I was a bit p***ed, to be honest with you. She was on 'The Voice' but we'd put her on 'X Factor' first.

"I thought they'd kind of nicked her from us so I decided I was going to try and tempt her back. If someone's on your show, you don't own them for life. They are allowed to go elsewhere."