He went on to say that he thinks the couple, who tied the knot in 2012, will make great parents. "Jessica is awesome," Joey, 37, said. "And Justin is a kid at heart."
Joey isn't the only friend of the couple to confirm the happy news. Back in October, Jessica's pal and InStyle editor, Ariel Foxman, posted and then deleted an Instagram message that read, "Congrats @jessicabiel on your impending motherhood… Looking forward to the red carpet maternity style pix to come #tbt."
Coincidentally, news of Jessica's pregnancy comes as she prepares to open a children's organic restaurant and bakery in the spring.
According to LA Eater, Au Fudge will be located on upscale Melrose Avenue in West Hollywood – a source previously described the eatery as like a "Soho House for kids", where "A-listers would feel comfortable bringing their kids to dine and take part in cooking activities".
The star is also busy working on her latest film. Last month, Jessica filmed scenes for The Blunderer in Ohio, alongside Toby Jones, Imogen Poots and Patrick Wilson - she stars as doomed wife Clara in the 1960-set psychological thriller, based on the 1954 novel by Patricia Highsmith.