(CBS News) Khloe and Kim Kardashian are both excited about being aunts again.
The two reached out on their blogs and on Twitter to express their excitement over their sister's new baby girl, Penelope Scotland Disick.
"I'm an auntie again!!!!!!!!! As I'm sure you all know, my beautiful big sister her blog. "And Mason is already loving being a big brother! This is just such a special and happy time for my family."to the most perfect baby girl you've EVER seen - Penelope Scotland Disick! The entire family is literally exploding with joy and have not stopped fawning over our new little girl," wrote Khloe on
Kourtney and her boyfriend Scott Disick welcomed their baby girl on Sunday. Penelope weighed in at 7 pounds, 14 ounces. She joins the couple's 2-year-old son, Mason.