Kim Kardashian is nervous to introduce her unborn son to North West -- read her post Credit: Kevin Mazur/Getty Images for Kanye West Yeezy)

Kim Kardashian is nervous to introduce North West to her unborn son. The pregnant Keeping Up With the Kardashians star got candid in a new blog post on Friday, Oct. 23.

“Not going to lie, I'm a little nervous about bringing baby No. 2 into the mix,” Kardashian, 35, wrote. “I’m nervous about how North will react, but I know she'll be such a good big sister and I can't wait to have this addition to our family. I know it it won't be easy— North even has a hard time adjusting when I hold other babies!”

To prepare little Nori, 2, for her younger brother, Kardashian said she and husband Kanye West “read books with her about getting a baby brother” and they “always say goodnight to baby brother.”

Kourtney Kardashian’s daughter, Penelope, helps, too. “Right now anything her cousin Penelope does, she does,” Kim admitted. “So it's really helpful that P has a little baby brother!!!”

With her son due in December, the Selfish book author is also making a point to spend time with her hubby West.

“I’m busy preparing for the baby but it's still SO important to me to make time for my husband. Our schedules are already so busy and I know that the first few months when the baby comes will be harder and more hectic. I know how important it is to do things on our own. We'll definitely go on a movie night and go out to dinner…He really is the best partner,” she gushed. “I wouldn't want to go through any of this without him by my side!”

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