The woman reported to be carrying Simon Cowell's baby has broken her silence and asked for "space and privacy" while "sorting things out" with her husband.
The X Factor boss has been named as a "co-respondent" in Lauren Silverman's divorce papers by her husband Andrew, according to reports in the United States.
The New York Post said Lauren, a property magnate, had filed for divorce based on his wife's adultery despite New York state allowing no-fault divorces, which means that Simon could be called to court to give evidence.
Lauren, 36, who has a seven-year-old son, Adam, with her husband, said: "I am committed to sorting things out with Andrew as amicably as possible to ensure the well-being of our son. I would hope for some space and privacy in order to work through this."
In a statement, her law firm, Cohen Clair Lans Greifer & Thorpe, said: "We are working to resolve this situation in a fair and reasonable way that protects the best interests of our client and her son."
Simon has remained tight-lipped about the story and refused to comment directly when he appeared at a press conference in Los Angeles ahead of the new series of the US version of the talent show.
"I've haven't read the newspapers," the 53-year-old music mogul joked, as he was questioned about the reports.
Asked if his schedule would be affected by being a father, he replied: "I really haven't read the newspapers. Did I miss anything?"
He added: "Unfortunately, I have to keep this, for the moment, private. It's just one of those things. Thank you very much anyway."
Simonl's mother is said to be "delighted" about the news that her son is to become a father for the first time.
Julie Cowell told The Sun: "I'm delighted. It's wonderful!"
According to the newspaper, the talent show judge fell for Lauren after her marriage hit the rocks.
Former Destiny's Child star Kelly Rowland, who has worked as a judge on the US and UK versions of X Factor, said she thought Simon would be "a wonderful father".
She told E! News: "It's not my news to share, but I do know about Simon and his character. He's going to be a great dad."