By CHELSEA HUANG
Welcome to the world, Reign Aston Disick!
Kourtney Kardashian, 35, announced the name of her third child on Sunday morning via Instagram one week after giving birth.
"Madly in love with my little Reign Aston Disick," she wrote.
The eldest Kardashian sister who already has two children with longtime boyfriend Scott Disick -- Mason, 5, and Penelope, 2 -- delivered the little one on Dec. 14. Oddly enough, the newest addition actually shares a birthday with his older brother.
That's not the only thing Reign will share. Rapper Lil' Kim gave her daughter a similar name in June -- Royal Reign.
Kourtney revealed she was having a boy two weeks ago on "Kourtney and Khloe Take The Hamptons."
"I am so happy we're having a boy," Kourtney said. "It's going to be perfect for our family."
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