The NCIS family is growing — and no, we're not reporting on yet another spin-off of the hit franchise.

Instead, NCIS: Los Angeles star Daniela Ruah is pregnant with her first child, expecting a baby with fiancé David Olsen.

"I'm so thrilled about having a baby boy and starting a new chapter as a parent with David," the 29-year-old tells People. "Its amazing how in love I am with this little person I've only seen on a black-and-white screen. I'm starting my own family, and there is no other feeling like it."

David is the brother of and stunt double for Daniela's NCIS: LA co-star, Eric Christian Olsen, who is a new father himself. Eric's wife, actress Sarah Wright, gave birth last month. Guess the two Los Angeles cousins are going to be close in age!

And, in case you were curious about the show's lineage, NCIS: LA is the daughter show of NCIS and the granddaughter show to JAG. There are two deceased branches of the family tree, however: the failed pilots JAG: San Diego and NCIS: Red.

Congrats to Daniela and David — and, for that matter, Eric and Sarah. Only time will tell if the kids will star in their own spin-off!

Source: People

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Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!