NEW YORK. Sept. 17 (UPI) -- Jennifer Aniston says she is surprised and grateful that a brief on-screen team-up with Reese Witherspoon 25 years ago has led to one of the most productive and satisfying partnerships of her career. "I would never think my baby sister on Friends would become my producing partner and starring partner in crime in one of the greatest shows that I personally feel has been made about this world," Aniston told reporters in a recent virtual press conference, promoting