Pregnant Kourtney Kardashian: Mason is "So Excited" To Be a Big Brother!

She may have a few more months left before she gives birth to her baby girl, but surprisingly, it's not Kourtney Kardashian who's getting antsy... it's her two-year-old son Mason!

The reality star tells Rachael Ray, in an interview airing on The Rachael Ray Show tomorrow, that Mason has become "obsessed" with being a big brother and can't wait to meet his little sister. 

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"He's really excited," the Keeping Up With the Kardashians star said of Mason. "Yesterday, he was talking about how he's excited to hold her and he's been like, recently obsessed with babies."

Kourtney, who is currently in New York with her beau Scott Disick and sister Kim Kardashian, is loving pregnancy this time around, althogh she admits she's having some crazy cravings! 

"I remember when I first got pregnant with Mason… I wanted fruit and frozen yogurt and all this healthy stuff, and this time it's like cheeseburgers, sour cream and onion chips and double-stuffed Oreos," Kourtney admits to Rachael. 

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And it's not that she doesn't enjoy eating all this yummy junk food, but Kourtney doesn't like Mason to snack on cookies, candies and sweets. 

"Mason started eating the Oreos I bought for myself and then I said, 'OK, we're not buying Oreos anymore!'"