Even though it’s been nearly a year and a half since giving birth to her son Mason, Kourtney Kardashian (who shows off her impressive bikini bod on Shape magazine’s June cover) still has moments of insecurity about her post-pregnancy body. "I think everyone focuses on their stomach," the 32-year-old reality TV star says in an exclusive behind-the-scenes video on Shape.com. "After you have a baby, especially, you’re like ‘Will my stomach ever get back to how it was?’ And I don’t know if my stomach will ever look the same."

But that’s not to say new mom Kourtney Kardashian hasn’t been putting in work to get her petite figure back in pre-baby form. "I have to get up at 7 a.m. every day, before everyone else, leave Mason in bed with Scott, and go for a run," Kardashian tells Shape. "Thirty minutes of cardio is right outside my door. My arms already look good from carrying a 25-pound baby around." What do you guys think about Kourtney Kardashian’s post baby bikini body?