In an interview this weekend, Kim Kardashian said she's happy her younger sisters finally know how hard it is to be a mom.

“I don’t know what the word is — not really an ‘I told you so,’ but … ‘Okay, you get it now. Welcome to the ‘Mom Club,’ ” she said about Kylie and Khloé.

In case you've been living under a rock, Kylie and Khloé both gave birth to their first children this spring, Stormi and True. Kim said that as opposed to her older sister Kourtney, who has three kids of her own, there were things that Kylie and Khloé just couldn't understand up until now.

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“They finally understand what it is like when I am really tired at work, when I’ve been up and feeding all night long, or things like that, those things they really didn’t get,” Kim said. “It’s fun to see them really understand it now.”

All the various KarJenner babies are getting along great, the reality star said, and Saint in particular loves having baby cousins around.

“Saint, every time he sees Stormi and True, he’s like, ‘I have a baby! Do you want to see my baby?!’" Kim said. “They are all so good together, but I think Saint is probably the most excited about all of the babies.”

And! All of the cousins even go to baby class together once a week, Khloé wrote on her app. Right now, Dream and Reign are "super obsessed" with each other, in case you were wondering!

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Emma Baty
Senior Entertainment Editor

Emma Baty is the Senior Entertainment Editor at Cosmopolitan, where she shapes TV, movie and music coverage, writes celebrity profiles, edits stories across both print and digital, and generally obsesses over all things pop culture. Prior to this role, she worked as Cosmopolitan.com’s News Writer, writing celebrity news stories daily and covering live events like the Oscars. Originally from Grand Haven, Michigan, she currently lives in Brooklyn.