(Photo Credit: JB Lacroix/Getty Images)

Like father like son.

Scott Disick, 30, is usually not a happy camper when the spotlight's not directly on him. So, it shouldn't come as much of a surprise that his 3-year-old son Mason isn't too excited about cousin North West stealing his thunder.

Kourtney Kardashian, 34, told People magazine on Sunday that Scott's son misses having Aunt Kim Kardashian all to himself.

"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 told People.

Read: Kim Kardashian on Fully Embracing Motherhood

Kim, who just had North three months ago, doesn't know what to do.

"[Kim's] just like [to Mason] 'You don't like me anymore?'" she added. "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."

See: Kim Kardashian's First Post-Pregnancy Appearance

The good news is Kourtney and Scott's daughter Penelope, 14 months, is "just in awe" of her new cousin.

"Whenever [Penelope] sees [North] and, you know, the second she walks into the room, Penelope gets so excited," she said.

If Mason and his aunt can get over their differences, it looks like the three cousins should become fast friends.

"We never really had cousins that were close in age … so I'm excited," Kourtney Kardashian added.