Teigen even captioned the vid, “4 months. Enjoy the month birthdays while you can.” The proud mum then referred to her baby in an endearing term “buttbutt!!”
The mother has been very active on social media since the birth of her child, posting snaps on the regular.
Just a month ago Teigen and her husband John Legend, 37, posted some holiday snaps and videos with their baby while they travelled around Europe.
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