Very sweet.

Kim Kardashian West has posted a tribute to her youngest sister, Kylie, to congratulate her on becoming a mother for the first time. She also praised her and said how proud she is of her. In the post she said:

"Mommy Kylie!!! You did it!!! I'm so incredibly proud of the woman you have grown up to be and I know that you are going to be the best mom to your new baby girl! Our girls are two weeks apart and I can’t wait for them to be besties! I am so proud that you do what you want to do and live your life the way you want, you will pass down all of those amazing qualities to your baby girl. You were made to be a mom! I love you!"

As we all surely know by now, Kylie welcomed her daughter on February 1. While it was rumoured, Kylie's pregnancy was kept private from the media and the world until she announced the news of the arrival and shared a video looking back at her pregnancy on Sunday. The baby, who has yet to be officially named, was seen at the end of the video shortly after she was born. Kylie, who posted every day on social media until her pregnancy is still keeping a low profile.