Simon Cowell is having a child with his friend Andrew Silverman's estranged wife, New York socialite Lauren Silverman, who is 10 weeks pregnant, and she is said to have told friends she wants to tie the knot with Simon.
A source told MailOnline, who first confirmed the reports of Simon's impending fatherhood: "Lauren loves Simon, she says that she wants to marry him. And with the baby, she's going the right way about it! But I think this could be really good for Simon."
However, friends of the eternal bachelor are shocked at the news he is to become a father.
One pal said: "He is an incredibly well-prepared man who is very controlling and no one can believe in a million years that he would make this kind of mistake.
"Knowing him and the way in which he controls every aspect of his life it's astonishing that this has happened. He is not one of those men who would have [had] a child in this way - it just seems so out of character. There is a sense of astonishment amongst his circle of friends over this news."