Kim Kardashian has passed an important milestone with her baby-to-be — a mommy-and-me Instagram selfie. The expectant mom posted a pic of herself in a clingy white dress that hugs all of her curves, including her expanding baby bump. Kardashian's previous Instagram post features photos of sister Khloé's recent Complex photo shoot. Kim praised Khloé for her daring, writing, "Hard work pays off! Khloé was always so hesitant about doing a sexy shoot just out of fear but she conquered her fears & went for it!!! I'm so proud of her!!!" Kim looks happy and glowing in the bump photo, which she captioned "Good night baby." Obviously, the star is way past the days of hiding the bump behind her husband. Kardashian announced that she's expecting her second child with Kanye West back in March. Their baby boy will face stiff competition from big sister North for flyest bambino on the block. Now fans just have to speculate on some suitably out-there baby names.