For Samantha, a mom of four, sporting her mesh undies was a decision that took a considerable amount of thought. "It's taken me a long time to get the courage to post this," she wrote in her caption. "A whole month actually! I was afraid of what friends and acquaintances might think. How they might paint me if they see me at school pick up or at the hockey rink. (Hello half-naked!) But this is real. This is postpartum. This is motherhood. The ones who matter won't mind and the ones who mind don't matter."