Simon Cowell - Expecting baby with friend's wife

Judge this: Simon Cowell impregnated his good friend's wife ... and she's already nearly 3 months along ... this according to reports.

Us Weekly broke the story, reporting Cowell is expecting a child with New York socialite Lauren Silverman, the estranged wife of Cowell's close friend Andrew Silverman, a real estate mogul.

36-year-old Lauren and her husband have been in the middle of a divorce for a while ... but still haven't severed the cord. 

Lauren is reportedly 10 weeks pregnant. FYI, Simon is 53 and this would be his first child.

Lauren's got talent too ... she's pretty damn hot. And it's safe to say Simon has a type. Just check out his recent exes, Mezhgan Hussainy and Terri Seymour.