There's A Brand New Member Of The Jenner Family

The entire Jenner clan just grew by one: Burt Jenner, Caitlyn Jenner's eldest son, welcomed a baby boy with his partner, Valerie Pitalo, on Thursday.

Burt, a 37-year-old race car driver, took to Instagram to share the adorable pictures of Valerie and their little guy. And from what we can tell by his captions, Burt Jenner is one excited dad.

Burt and Valerie first told the world of their news back in December by sharing a photo of the ultrasound.

Although Valerie, Caitlyn, Brody, Kendall and Kylie have yet to post about the news on social media (as of the time of writing), Valerie shared this snap on her Instagram just two days ago.

The new parents haven't revealed their son's name yet, but given this family's track record, I have a feeling it might start with a "B."

The newest addition to the Jenner family is Caitlyn's fourth grandchild. Burt's brother, Brandon, has a daughter, Eva, with his wife, Leah Felder. Casey Marino, Caitlyn's eldest daughter, has two girls, Isabella and Francesca, with her husband, Mark. Casey is also expecting a baby boy in October.

Congrats, guys! He's adorable.

Citations: Caitlyn Jenner Becomes A Grandma To Four After Son Burt Welcomes First Child (Yahoo! News)