Kris Jenner says her grandson Tatum is Rob Kardashian to a "T"

The momager - who has 13 grandchildren - gushed alongside various snaps of Tatum on Instagram: "Happy Birthday to my amazing little Grandson Tatum!!!! You are such a beautiful boy filled with wonder, joy, amazement, curiosity and so so so much love!!!!!! You are the sweetest most special little love bug and every day fill me with such happiness and the best energy to start my days... I am so blessed God chose me to be your Grandma and I love you beyond measure!!!! Lovey P.S. you are Rob to the T!!!!!!!!"

Khloe pulled out all the stops for the lavish party at her home - as documented on her Instagram Stories.

Guests were greeted to a gigantic balloon arch around the entrance to the mansion with a banner reading: "Tatum Two-a-Saurus."

Tatum had a three-tier dinosaur birthday cake and even more balloons inside and out.

There was also a giant dinosaur statue with a "do not feed sign" situated near to the pool, which had giant leaf lilos floating on it, and dinosaur egg balloons above.

Another statue had a sign reading "rawr ahead".

Khloe then showed off a table covered with various dinosaur and egg-shaped cakes and sweet treats.

Other themed foods included tacos served in a dinosaur and fruit in dinosaur shapes.

In a part of the garden covered in shade, the young guests were invited to get arty and create a dinosaur scene or paint a dinosaur.

They even had a merchandise stall by Stoney Clover Ln, where the young ones could personalise their bags with patches.

In her own emotional post about the family's special bond with Tatum, Khloe shared: "My precious son, I know you were mine in another lifetime.

"I know this because of the way you look at me. The way we giggle when we stare at one another. The bond you have with your sister. The relationships you have with everyone in our family that was here before you. It's as if You knew us all before. The insight you already have. The knowledge you possess. The way you know how to love. The way you communicate!! And you are only two years.

"I am so proud to be your mommy. So proud of the love and laughter we have in our house. So proud of your beautiful, gentle, polite, intelligent, loving, infectious spirit. You light up every single room. There's no denying that Everyone smiles when they look at you! Especially True she is so proud to call you hers, as am I.

"Happy birthday my sweet handsome boy! You are loved tremendously by this incredible tribe of ours! (sic)"