Just weeks after one of its judges was embroiled in a sex tape scandal, the “X-Factor” panel is back at the center of another alleged affair.

In a new biography of “X-Factor” creator Simon Cowell, former BBC journalist Tim Bower alleges that Cowell had an affair with ex-judge , Dannii Minogue, according to a report from the U.K. Mirror.

In 2008, when allegations of an affair first began, both Minogue and Cowell denied it.

“They are said to have spent several nights together, but the ­relationship petered out after a while,” a source told the Mirror.

But  while Bower, whose book “Sweet Revenge: The Intimate Life of Simon Cowell” will be released Friday, says Cowell was reportedly initially furious when he learned that Bower planned to write about the affair, he eventually confessed to it, reports say.

Cowell is quoted as allegedly saying “I had a crush on her,” of Minogue.

“It was Dannii's hair, the sexy clothes and the t***. I was like a schoolboy. She was foxy. She was a real man's girl. Very feminine,” he allegedly said.

“Every guy in the world fancies Danni. She's become a sex symbol since joining the show and the contestants love her. She's got that Sophia Loren, movie-star sex appeal, I love sitting next to her.”

Cowell, for his part, tweeted about his shock over the book and its allegations.

“Just seen the TV ad for the unauthorised book on me. Yikes!” he wrote.

Minogue, who recently split from boyfriend Kris Smith, is said to be devastated over the allegations. She left the “X Factor” panel last year.

Last month, judge Tulisa Contostavlos confessed to appearing in a leaked sex tape with an ex-boyfriend.