The Radio 2 DJs were close pals back in the late 90s and early 00s.
"It is quite tiring, and by three or four I was kind of horrible to my kids by that time."
She claimed Sara had even beaten her to jobs she wanted in the past.
'I’m beyond chuffed.'
Sara is currently the bookies' favourite, having overtaken early frontrunner Zoe Ball.
Sara Cox has already emerged as a frontrunner, but who else would be suitable?
Coxy began trending on Twitter soon after it was revealed Chris was leaving.
She lost out to Mel B on a place on the panel in 2014.
Sara Cox has opened up about her failed bid to become an 'X Factor' judge. The BBC Radio 2 DJ was in talks to join the ITV
Coxy answers life's big questions in our exclusive interview.