Just when Chrissy Teigen thought she was out, mommy-shamers have pulled her back in.The Lip Sync Battle co-host announced earlier this month that she was taking a break from Twitter in response to negative feedback from online trolls. Her tweets are still protected, but she couldn't resist coming out of the woodwork this week to defend her parenting skills.A Twitter user took the model to task for the way she was holding her 6-month-old daughter, Luna, in a recent photo."This is not how a baby is held," the judgey tweet read.