"Just how you feel like a unit, how you feel like a team together -- there's something about being married that just unites ... and bonds you," Kim said. "I think it does mean something, it is different."
Another thing that's different is Kanye himself, who Kim said has "always treated me like that team from day one," but now that baby North is around he seems to have "really softened up."
"I think I've seen more of a change in him as a dad, and just as a person just to really softened up," Kim said. "Everything is, 'If this doesn't make sense for our family, I'm not even going to waste my time doing it.' "
And as for "Nori," who is nearly 14 months old, Kim says that it's hard to keep up with how fast she's growing; the reality star has already noticed North starting to develop a personality of her own.
"I would say she definitely isn't shy like her dad," she said. "But if you ask her to do anything on command like clap, walk, she just shuts down, she does not want to perform. But she is really sweet and she's a mama's girl right now."
With a reported $20 million purchase on a brand-new house, clearly the family has the room to expand, which they plan to do. The question is just how many siblings will North eventually have to play with.
"I grew up with siblings. If I could just snap my fingers and have four, I would have four but I do realize that I would have to go through the pregnancy again -- mine was really difficult," Kim said. "Of course, I want to have another child. I would love two more but we will see. I'm gonna have one more and see what it's like."