Kourtney Kardashian poses for Harper's Bazaar Credit: Rene and Radka

Just like their moms! Kourtney and Kim Kardashian’s daughters Penelope Disick and North West are already bonding — and fighting! — over shoes. In an interview with Harper’s Bazaar, third-time mom Kourtney opened up about her only daughter and her fashionable niece.

“Both of the girls love shoes,” the 36-year-old told the mag. "Last night North was over and they were fighting over shoes in Penelope's closet and they were so cute. By the end, they were sharing and trying the shoes on each other and having so much fun. It reminds me of how Kim and I were when we were little girls,” she said, recalling how she and her younger sister would rummage through their mom Kris Jenner’s closet.

“We had this game we played, I was Donna Karan and she was my assistant, and I was really bossy,” Kourtney explained. "We would always hear my mom talk about designers, and she had all this designer vintage…We had so much fun playing in her closet,” she gushed. “My daughter already tries on my shoes, and she plays with my makeup. It's fun, but it brings out the girlier side in me knowing that I'm a role model for her.”

Bruce Jenner’s eldest stepdaughter, who recently welcomed her third child, son Reign, says having three kids hasn’t necessarily changed things. “It just really enhanced everything—it's such a blessing,” she said of her and Scott Disick's growing brood. "I think the kids have been really happy, and it doesn't seem like that much has changed, it just seems like a really wonderful addition."

And now that she’s gotten situated with the newborn, Kourtney’s ready to get her post-baby bod in shape.

“I like to take my time and not try to put too much pressure on myself, but it's hard,” the E! reality star, who recently revealed via Instagram that she now weighs 116 pounds, admitted. “I think I forget every time — you give birth and you want your stomach to be flat again. It does take a lot of work, but I usually start slowly by going on walks with the baby…but now I'm in full force,” she added. "I've been working out with a trainer, and having somebody else to work out with really helps motivate me…I also try to eat really clean and at home as much as I can.”