Kourtney & Kim Kardashian
09/03/2009 at 03:20 PM EDT
Who would have thought a day of baby shopping could be so emotional?
hit Bel-Bambini boutique last week in West Hollywood with her pregnant
sister Kourtney, only to battle a host of feelings – starting with frustration at not knowing what sex her sister's baby will be.
"I found that really hard," Kim wrote on her blog
. "I just wanted to shop for pink or blue, haha! I want Kourt and Scott to find out already!!"
But that was nothing compared to the sudden stirring of Kim's maternal instincts.
"I want a baby!!!!" she writes. "OK, so maybe not right now, but I can't wait to be an aunt!"