Ronaldo, who called the rape allegations against him "fake news" Sunday, allegedly paid the woman more than $350,000 in 2010 to keep the incident quiet, according to UK's Sun newspaper.
The magazine's Deputy Editor-in-Chief, Alfred Weinzierl, told Reuters the publication has repeatedly sought contact and comment from Ronaldo's management and lawyers about the allegations before publishing.
The lawsuit said Mayorga reported the alleged assault to the Las Vegas police the same day and underwent an examination at a local hospital.
"No, no, no, no, no".
"What they said today, fake - fake news". It's normal. They want to be famous...to say my name. "I am a happy man and all good", the player added, smiling.
Ronaldo said "they" were trying to use his name to promote "themselves".
The Portuguese striker, who is married and the father of four, left Real Madrid this year to join Juventus for €100 million (US$117 million).
The incident, according to a report in Der Spiegel took place on June 12, 2009, in a Las Vegas nightclub.
It accuses his agents and representatives of "conspiring to obstruct the criminal investigation and prosecution of Cristiano Ronaldo" for the alleged sexual assault and to reduce her civil claim for damages.
Georgina Rodriguez has however posted a statement on Instagram telling the former Manchester United hero that she loves him. By breaking her end of the agreement, she may now face the possibility of having to pay back $375,000 awarded to her eight years ago, on top of legal fees, in an out-of-court settlement reported by Der Spiegel.
Her allegations cite that she was in the bathroom changing her clothes and Ronaldo came to her and exposed himself while asking her to perform a sex act on him.
Kathryn says that after, he apologized, saying he was 'usually a gentleman'.
Leslie Stovall, Mayorga's lawyer, said in a statement on Monday that his client wanted to "obtain justice by holding Cristiano Ronaldo accountable for his conduct".
The German magazine goes on to say that Mayorga's lawyer is now "questioning the validity of that out-of-court settlement in a civil complaint in Nevada".