Showbiz
Rex Features
The couple sparked rumours of a romance last week after they were photographed parting at an LA nightclub before returning to the socialite's sister's house together.
Speaking to The Mirror, she said: "He's a very nice and an incredible athlete.
"We're getting to know each other and I have to leave it at that."
She went on to repeat her earlier insistence that the pair are not dating, saying: "Cristiano and I are good friends. Very good friends."
Ronaldo, who is currently vacationing in the States, was reported to have invited Hilton on his recent trip to Las Vegas.
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