The X Factor mogul, 53, is said to be expecting his first child with Lauren Silverman - who is bizarrely married to his good pal Andrew - early next year.
According to Us Weekly, Lauren and Andrew's "divorce has been in the works for sometime" and she is planning on leaving her husband for Simon.
Although fond of children, Simon has always remained of the stance that fatherhood may not be for him.
In 2009, he was quoted saying: "God, no. I couldn't have children. If I had them here drawing on the walls I'd go nuts."
Well if the rumour is true, then it looks like he had better get his hands on a copy of What To Expect When You're Expecting - sharpish!
Reveal contacted Simon's reps for a comment and was referred to his US attorney. He has so far not responded.
Simon may or may not be expecting a baby, but these stars definitely are!
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