Kourtney Kardashian's Family Tweets Joy for Baby Girl: "Can't Wait to Go Buy Something Pink!"

It's a girl for Kourtney Kardashian and her boyfriend Scott Disick! OK! magazine exclusively revealed the exciting news today and now Kourtney's family have taken to their Twitter accounts to share in the excitement.

OK! COVER STORY: EXCLUSIVE BABY ANNOUNCEMENT — KOURTNEY KARDASHIAN: IT'S A GIRL!"

Kourtney and Scott's son Mason is going to be a big brother to a baby sister and their family is thrilled!

"Hey twitterfam!! @KourtneyKardash @ScottDisick are having a GIRL!!! Can't wait to go buy something PINK! What a blessing!" Grandma Kris Jenner Tweeted.

Sister Khloe Kardashian wrote, "Wooohoooo @KourtneyKardash and @ScottDisick are having a baby girl!!!! OMG I can't wait to buy her a glitter tutu LOL."

Though she hasn't Tweeted yet, we have a feeling Kim Kardashian is excited for the same reason! It sounds like this baby girl will be very well dressed.

OK! GALLERY: KOURTNEY KARDASHIAN TRIES TO COVER HER BABY BUMP WHILE SHOPPING IN WEST HOLLYWOOD

Brother Rob Kardashian previously told OK! he was hoping Kourtney would have another boy.

"Because there’s been so many girls in our family. I feel like it’s going to be a boy but everyone else feels like it’s going to be a girl," he shared with OK!. "But I think it would be kind of cool to have two brothers at close age because they’d be two years apart. We’re so close, regardless they’re going to be close. I’m close with all my sisters, obviously, but it should be a very good situation for our family."

Well, it's another Kardashian girl for the family but we bet Rob is still excited!

Kourtney herself wrote on her blog, "This is an amazing blessing and Scott and I are so thrilled…"

What do you think Kourtney and Scott should name their daughter?