He's growing up before our very eyes!

Kim and Kanye's son Saint doesn't make as many appearances on his mom's social media as his sister North, but when he does, he makes headlines! The toddler is beginning to talk, and the reality star documented him saying some cute words on Snapchat last night.

The E! starlet gave her little boy zebra ears with a filter, and he could be heard saying "dinosaur" and giving the cutest little roar in the clip.

He's not going to the baby of the family for long!

Kimye's surrogate is reportedly three months pregnant with their third child. The woman, who is a San Diego mom in her late 20s, is due to give birth around January 2018. The couple selected her to carry their baby after doctors told Kimmy that another pregnancy would be too dangerous for her health, due to the condition placenta accreta.

They make some adorable kiddos!