Mason's going to have a baby sister!

Kourtney Kardashian confirmed rumors she's pregnant with a little girl, telling OK! she found out on Valentine's Day and is "so, so excited!"

Scott Disick is thrilled with the news as well, telling the mag "I even wanted a girl the first time -- and then we had Mason and it couldn't have been any better ... We're very fortunate to have the combination that everyone wishes for."

Kourtney says she's currently five months along and the two haven't decided on a name yet. "We actually have one name that we both love, but I'm not sure ... I feel like you don't really know until after you meet the baby." 

With aunts Kim, Khloe, Kylie and Kendall, one thing's for sure: She's going to be one stylish little kid!

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