It looks like Kim Kardashian and Kanye West's baby North West has found a best friend in Kourtney Kardashian's daughter Penelope Disick. The "Keeping Up with the Kardashians" star, who is rumored to be pregnant again, recently revealed that the new cousins are getting along and becoming best friends.

Apparently, three month old North and 1-year-old Penelope are getting along so well that they are making her older brother, 3-year-old Mason Dash Disick, jealous.

On Sunday, Kourtney Kardaashian told People at the Los Angeles premiere of Thomas & Friends: King of the Railway, "Whenever [Penelope] sees [North West] and, you know, the second she walks into the room, Penelope gets so excited."

The reality star added, "We never really had cousins that were close in age ... so I'm excited."

However, while Penelope is "just in awe" of North West it seems like Mason Disick is still adjusting to the new addition to his family.

Kourtney Kardashian explained, "I think he gets a little jealous because he and Kim were so close and so he doesn't understand because he's not the big center of attention."

She went on to say, "I don't think [Kim] knows what to do; she's just like 'You don't like me anymore?' She feels like he ... is getting older and changing, and I think she gets confused and doesn't know how to handle it. He's like, 'Why don't you like me anymore?' cause he sees her with the baby."

In an effort to make her little boy feel loved Kourtney has been giving the toddler extra attention now that Kim has her own priorities.

Kourtney revealed, "I give him so much attention, and he gets so much attention from everyone else that I'm like I don't even know."

Now that North West and Penelope Disick are getting along so well do you think they will have as close of a relationship like their mothers? Let us know your thoughts in the comment section below.