Jan. 21, actress Olivia Munn shared an adorable video of her 4-month-old daughter Méi, who's growing so fast that she's currently wearing clothing for 6-to-9-month-old kids.

Olivia Munn and John Mulaney’s baby Méi is glowing with happiness in a new video. She just turned 4 months old and has already mastered a big new milestone — and her adorable face reveals she is so darn proud of herself!

It seems like yesterday when Olivia Munn welcomed a second kid, daughter Méi June Mulaney, via surrogate into their family. Munn, who constantly posts updates about Méi, shared a new growth milestone in the cutest Instagram Stories video.

On Tuesday, Jan. 14, the actress, 44, shared a series of photos on her Instagram as she celebrated her daughter Méi June's turning 4 months old. In the adorable photo, Méi can be seen wearing a tan fuzzy trapper hat and is held up by her dad, John Mulaney, as Munn sits next to them.