"My brother Rob is like my father in so many ways -- his sense of humor, silly nature, the way he loves and respects family. My dad would do anything for his kids and my brother is the same way for Dream," Khloe wrote. "I'm so proud of him!"
Rob became a dad when he and his ex, Blac Chyna, welcomed daughter Dream in November 2016. The adorable 1-year-old makes frequent appearances on Rob's Twitter, as well as in other pics with her cousins.
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"My dad would be really proud that Rob wants to implement his Armenian roots into Dream's upbringing. It would mean so much to him that all of his grandchildren are so close," Khloe said. "It's family over everything and I love that my brother is the same way."