Meanwhile, Khloe Kardashian went down memory lane and shared several photos of them together over the years.  

“My sweet, sweet baby Ky, Happy, happy birthday to my baby!” the 41-year-old captioned her tribute. “From the moment you came into this world, I never knew my heart could hold so much love. You are my kind, brilliant, hilarious, beautiful sister—and every day, you continue to amaze me.”  

Khloe further noted that Kylie “taught” her many important lessons, including “how to be strong, how to lead with love, how to laugh even in the chaos, and how to show up for the people you care about.”

“I truly don’t know what I’d do without you,” the Good American founder continued. “I thank God every single day that I get to do life with you. My soulmate sister. My partner in all lifetimes and especially in the afterworld.” 

Keep reading to see more moments in Kylie’s evolution…