The reality TV star - who recently split from boyfriend Reggie Bush - apparently began dating the Portuguese winger earlier this month.
According to Showbiz Spy, Ronaldo has been strictly instructed not to get distracted ahead of the finals, but he is refusing to listen.
"Cristiano has already been advised to be careful and not get wrapped up in anything unnecessarily stressful ahead of the World Cup," an insider claimed. "The World Cup is huge for him in both football terms and marketing-wise, and he would be stupid to let a girl put that at risk.
"Cristiano is not exactly taking the advice. He's already told Kim he wants her to come to South Africa to cheer him on."
