Little Ariella Mae is getting so big!

Recently, TLC’s “Sister Wives” star Janelle took to Twitter to share a sweet photo of the Brown brood’s newest member. In the image, Robyn and Kody’s daughter struck an adorable pose with her big brother Hunter, who was all smiles as he cradled his baby sister on his lap.

When Robyn and Kody announced to their family that they were expecting a little girl, Hunter, who was conferenced in during a video call, was overjoyed to learn he was going to get another sister.

“I feel like I have a lot of sisters, but that’s OK. I want more,” he sweetly said during the Season 6 installment of “Sister Wives.” “I just love my sisters so much.”

Meri revealed the arrival and Robyn and Kody’s fifth child would make the boy/girl ratio of the Brown family 11:7.

The Brown clan welcomed Ariella Mae into their family on Jan. 10. Kody’s eighteenth child weighed in at 9 lbs., 9 oz. of cuteness.

“We are happy and blessed to welcome the newest addition to the Brown family,” Robyn said in a statement to People magazine, revealing that their little one already seems to enjoy having a large and vivacious family. “‘Baby Sister’ is already opening her eyes and seems to love listening to all the voices of her big family talk around her.”

TLC has not yet confirmed whether “Sister Wives” will be renewed for a seventh season. However, if the long-running show does return, audiences can expect the upcoming installment to focus on the arrival of little Ariella Mae.