The Sun. Speaking to the publication before her victory was revealed by hosts Ant McPartlin and Declan Donnelly, Mario said: 'I've got a cheeky bet on my sister - from day one - so I'll be pretty happy. 'I got nine to one odds and I put £1,000 on. 'And Mario joked Giovanna will also be relieved by his betting success because she would have had to pay him back if she didn't walk away with the famous I'm A Celebrity crown.
The reality star added he had complete faith in his sister and felt she 'deserved' the victory following her stint on the hit ITV show.
He continued: 'Oh, she's gonna win. If she doesn't she owes me grand. 'And Mario was not the only one who thought that the author would win I'm A Celebrity, as Mark Wright took to Twitter.
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