North West is growing up so fast!

Kim Kardashian shared with fans another new pic of her 7-month-old daughter, North West on her Instagram Friday afternoon.

The 33-year-old Keeping Up With The Kardashians reality star posted the cute picture of her baby girl next to Scott Disick and Kourtney Kardashian's 18-month-old daughter, proving that the little girls are indeed close cousins.

"BFF's," she captioned the adorable photo of North looking directly at the camera.

In an interview with Mobio Insider Q&A last month, Kim gushed about how the little girls were already so close.

"Its so cute how they all love each other so much!" Kim said. "Penelope & North are bff! Mason bosses them around and is super protective."

Kourtney told  E! News back in September that Mason "has a special relationship with his Aunt Kiki [Kim], and she [Nori] takes away from that, so he's still kind of adjusting."

Though Kardashian loves being a mom to North, fans may not see more little kids from her and Kanye, as she recently told Ellen Degeneres that she endured a tough pregnancy.

"[Women who say pregnancy is easy] are lying," Kim said. "They are lying to you. I'm telling you. Kourtney said that, my mom said that. I was literally giving birth and I looked at my mom and I said, 'I'm going to get you a medal. You deserve everything."

She revealed that before getting pregnant, she wanted to have at least six children, but carrying North has changed her mind.