The 37-year-old "Keeping up with the Kardashians" star shared details about Khloe Kardashian's baby girl and delivery Friday on Twitter after the 33-year-old reality star gave birth to her first child with Tristan Thompson.
"@khloekardashian I'm so happy for you! Your baby girl is so beautiful! You are so strong, you made that look so easy!" Kim wrote.
"I can't wait for our baby girls to grow up as best friends the way we are!" she added, referring to her daughter Chicago West, who was born in January.
"I'm so happy I was able to return the favor of holding your leg while you pushed LOL."
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