"North is loving baby Saint and has been a great older sister during these past few weeks," a source says of the two-year-old. "They sure will have a great bond. It's already displayed between [them]."
And Saint — who's "looking more and more like North every day," according to the source — is still the talk of his extended family.
"All of Kim [Kardashian's] sisters have been popping by and giving baby Saint lots of attention and love," the insider tells E! News, adding that the reality star and hubby Kanye West are also doing great.
"Kanye has showcased such amazing daddy skills and has been a helpful husband to Kim," the source explains.
As for the 35-year-old's goal of losing her baby weight, the insider says she's moving forward. "Kim is staying on track with her weight loss progress and taking it day by day."
"Running around with the kids definitely helps with shedding some weight, and she has been working out and eating healthy," the source adds.