Aunt Kim Kardashian's Most Adorable Moments with Mason Disick (PHOTOS)
The arrival of Kourtney Kardashian's second child -- Penelope Scotland Disick -- means Kim Kardashian will have to double down on her babysitting duties.
Over the years, the 31-year-old Keeping Up with the Kardashians star has been doting Aunt Kiki to Kourtney's 2-year-old son, Mason Disick. Now that little Penelope has entered the world, there's no doubt Kim will be lavishing the new bundle of joy with all kinds of gifts and affections -- just like she did with Kourt's firstborn.
Launch the gallery above for Kim's most adorable aunt moments.
On Sunday night, Kim took to her blog to gush about her niece, writing:
Welcome to the world, Penelope Scotland Disick! Kourtney gave birth to a beautiful baby daughter on Sunday and the whole family is so thrilled to finally meet her! She is absolutely perfect! I am so excited to be an aunt again and can’t wait to spoil little Penelope. I know Mason is going to be the best big brother in the whole world. Congratulations Kourtney and Scott. Xo
Penelope -- the newest addition to the ever growing Kardashian-Disick clan -- was born Sunday at Los Angeles' Mount Cedars-Sinai Medical Center, tipping the scales at at 7 pounds, 14 ounces.
Kourtney delivered the baby girl naturally.
"It was a great. She had an easy delivery," proud grandma Kris Jenner added. "[Penelope] is so cute. She looks just like Mason. She's so beautiful. We are so happy."