Kourtney Kardashian, star of reality series 'Keeping Up With The Kardashians', recently revealed the sex her upcoming baby with boyfriend Scott Disick. The 'Kourtney and Khloe Take The Hamptons' actress announced that her third child will be a baby boy.

After Kourtney found out that it was going to be a boy, she went on to tell her sisters Kim and Khloe, as well as her boyfriend Scott and their first son Mason.

However, when Mason learned that he was going to have a baby brother, he wasn't all too pleased with the news. After finding out, the first thing he said was "I wanted a girl."

Fortunately, Khloe Kardashian came to the rescue and explained to him all the benefits of having a little baby brother around the house. She said, "Girls don't like aliens and Lego guys. When you have a brother you can say 'Look at all my Lego guys, brother.' You get to be rough and you can boss him around because you're the older one," Khloe said.

Moving along, the soon to be mom of three is evidently excited for her third baby due this month. "I am so happy we're having a boy," Kardashian said and added, "It's going to be perfect for our family."

Beyond that, the reality star went ahead and posed for DuJour Magazine, as she said she feels "comfortable" when she's pregnant, she said, "I really feel so comfortable, and almost at my best, when I'm pregnant...I don't know, I just feel just like it's such an amazing feeling, the transformation that your body goes through and knowing that this is what my body is made to do, there's something about that that's so empowering and beautiful and I just really embrace it," she said.

Meanwhile, Kardashian's sister Kim and mother of baby North West with husband Kanye West also revealed that she is trying to have another baby so she could be pregnant at the same time with her sister.

"You know I kind of wish I was pregnant at the same time Kourtney is," Kim told ET in August, "She's like more than half way in, so you know, we're trying," she added.