The Big Sister! See 'Teen Mom 2' Star Chelsea Houska's Daughter Aubree With Her New Little Brother Watson

Aubree is a big sister, again! Chelsea Houska's daughter met her new little brother, Watson Cole, and the photos are just too cute!

The Teen Mom 2 star's mother, Mary, shared this adorable photo with her new grandson in her arms.

"The big sister. I'm glad she has a beautiful family!!" Mary gushed of an adorable photo of Aubree holding Watson.

Chelsea and her husband, Cole DeBoer, welcomed their first child together early Wednesday, January 25.

"Welcome to the world, sweet boy," she wrote in the birth announcement.

What do you think of Chelsea's baby boy's name? Let us know your thoughts in the comments section!