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OTRC: Kourtney Kardashian gives birth to baby girl, Penelope Scotland Disick

In this photo released by Starpix, reality television star Kourtney Kardashian and Scott Disick attend the showing of the Jill Stuart spring 2011 collection during Mercedes-Benz fashion week in New York, Saturday, Sept. 11, 2010. (Starpix, Dave Allocca)

Kourtney Kardashian and longtime boyfriend Scott Disick have welcomed their second child, a baby girl named Penelope Scotland Disick.

Proud aunt Kim Kardashian confirmed the news, tweeting, "Welcome to the world Penelope Scotland Disick!!!!"

Kim Kardashian posted on her blog that her sister gave birth on Sunday.

"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," she wrote.

Mom and baby are "resting comfortably," E! Online quotes Kourtney Kardashian as saying. She reportedly had an all-natural birth, with the baby weighing in at 7 pounds 14 ounces.

Kourtney Kardashian first announced her pregnancy in late November. The 33-year-old reality TV star and 29-year-old Disick have been together for five years and also are parents to their son Mason, who is 2 years old.

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