Nearly one week after naked photos of Britain's Prince Harry taken in a Las Vegas hotel room emerged the scandal threatens to grow.

"Something pretty gigantic" is involved, an unnamed source told Las Vegas Review-Journal gossip columnist Norm Clarke. The source described the unknown scenario as "more serious" than the prince's game of "strip billiards" with pals that led to the headline-making photos released Aug. 22 showing Harry standing and covering his genitals with his hand in one photo and, in another, bear-hugging a naked woman.

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The revelation came as the Wynn hotel, where Harry partied, reportedly to blow off steam before reporting back to his military duties, denied reports that casino mogul Steve Wynn picked up the almost $80,000 tab for the prince's visit.

"That's factually incorrect," Wynn spokesman Michael Weaver told Clarke.

The U.K.'s Daily Mail reports Prince Harry, 27, is "terrified" that more photos will be leaked, possibly from a booze-filled party that began a few hours after the strip billiards party inside his suite at the Wynn Las Vegas and Encore Resort Hotel ended. In new details about the party, a dozen "randomly recruited" girls were invited to come and meet the prince in his cabana at the MGM Grand Hotel's Wet Republic club, the paper reports.

As Harry returned to England last week, reportedly to his Army base in Wattisham, Suffolk, before a planned visit to Clarence House for discussions with aides, a bachelorette party spilled details of partying with the prince in Vegas and raunchy photos of Harry's pre-Vegas party on a private estate in Necker Island emerged.

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This week the prince's under-the-radar personal Facebook page has been deleted and Harry, the third in line to the British throne, has been urged to log off the social network for good by his private secretary, Jamie Lowther-Pinkerton, the Daily Mail reports.

Using the pseudonym Spike Wells, Harry had close to 400 friends on Facebook and updated his page frequently, as recently as last week, the paper reports.

It was the Facebook accounts of Harry's friends that led to more bad press for the prince last week after photos of the group's raucous, week-long vacation at the Necker island estate of Virgin mogul Sir Richard Branson just before their Las Vegas trip emerged.

Pictures posted from that vacation, to celebrate the 27th birthday of Branson's son, included a guy wearing the same shorts that Prince Harry wore in Vegas passed out in the sand and a photo of two girls dressed in neon bathing suits and neon-pink wigs.

Harry's friends on that trip, including Arthur Landon and Tom "Skippy" Inskip, have also now blocked access to their Facebook pictures.

"They [the prince's friends] thought it was despicable that somebody would have the audacity to take up the prince's hospitality and then betray him," Victoria Ward, a senior reporter for the U.K.'s Telegraph, told ABC News.

Possibly blocking Harry in real-life is one of the girls on the Necker Island trip, his rumored love interest, blond heiress Cressida Bonas.

British tabloids report that Bonas, the daughter of 1960s covergirl Lady Mary-Gaye Curzon, is "humiliated" by the nude photos of Harry with another woman and tired of his wild side.

"She's only 23, and I don't think she really needs this, you know, plastered naked across the Internet and ogling other women," Ingrid Seward, editor in chief of Majesty Magazine, told ABC News.

The palace has continued to stay mum on Harry's partying, beyond confirming that the naked photos are real and then contacting the Press Complaints Commission, which advised British newspapers to not publish the pictures.