The Robertson family is now getting even bigger! "Duck Dynasty" star Willie Robertson and his wife Korie announced that they are in the process of adopting a 13-year-old boy. Over the weekend Korie took to Instagram to show off her growing family and answered the question that tons of new fans were thinking: who is the boy in all the new family pictures?

"We've had lots of questions about the cute kid popping up in our photos lately. We are excited to be in the process of adopting a new son! He's been with us since May," Korie captioned a photo of all of her children. "We wanted some privacy and time for him and our family to bond before telling the world (It's a bit of an adjustment coming into this big, crazy family, ha)."

The picture showed Korie and Willie's five kids plus the new edition to the family. The Robertson's have not revealed the name of their son or why they adopted him, but he seemed to be adjusting to his new life well.

"He's amazing, and we are all so thrilled to have another kid around the house," she continued. "Couldn't keep the good news to ourselves any longer! We appreciate your prayers and support for our family!"

The Robertson's are no stranger to adopting children. Korie and Willie previously adopted two of their children Rebecca, 27 and Willie Jr., 13. Rebecca was first an exchange student and became their foster child in 2004 while Willie Jr. was adopted when he was a baby, according to People.

"We got him in May, at the end of the school year," Korie told Entertainment Tonight. "He was at John Luke's wedding and walked my grandmother down the aisle."

"Duck Dynasty" returns to A&E for season 9 on Jan. 13.

A photo posted by Korie Robertson (@bosshogswife) on Jan 3, 2016 at 11:40am PST