Kourtney Kardashian's new baby girl Penelope Scotland Disick (Photo : Us Weekly)

Kourtney Kardashian's new baby girl Penelope Scotland Disick has landed her first magazine cover.

Kourtney Kardashian and boyfriend Scott Disick's one-month-old daughter appeared on the cover of Us Weekly along with Kourtney and her 2-year-old son Mason.

"Nothing could prepare me for how hard I fell in love with her," Kardashian told the magazine.

Penelope was born on July 8 in Los Angeles, weighing 7 lbs 14 oz.

"Scott and I are overjoyed to welcome our precious angel Penelope Scotland Disick into our lives. We are forever blessed. Mommy and baby are resting comfortably," Kardashian told E! News upon Penelope's birth.

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Kourtney's sister Kim also expressed her joy in having a niece.
"Kourtney gave birth to a beautiful baby daughter on Sunday and the whole family is so thrilled to finally meet her!" Kim wrote on Celebuzz.
"She is absolutely perfect! I am so excited to be an aunt again and can’t wait to spoil little Penelope."

Khloe Kardashian took her excitement to her blog.
"I’m an auntie again!!!!!!!!!! As I’m sure you all know, my beautiful big sister gave birth yesterday to the most perfect baby girl you’ve EVER seen — Penelope Scotland Disick!" Khloe said.

"The entire family is literally exploding with joy and have not stopped fawning over our new little girl. And Mason is already loving being a big brother!"

"This is just such a special and happy time for my family. Thank you to Kourt and Scott for making such beautiful babies! LOL," she went on.

The Us Weekly featuring exclusive photos and details of Penelope's delivery will hit the newsstands on August 10th.