On Tuesday, Dec. 25, the Fashion Star mentor tweeted a photo of daughter Maxwell, almost 8 months, sitting on a beach with "Big Sis" written in the sand.
"Merry Christmas from my family to yours!" Simpson, 32, wrote as the caption. In the adorable snapshot, Maxwell is dressed in a red-and-white striped onesie, a red bow in her hair and has a big smile on her face.
"I was the maid of honor last night for my BF Cacee Cobb," she tweeted. "She was the most beautiful bride I have ever seen in my life!" The pregnant star included a photo of herself and Johnson at the wedding, with her bouquet covering her belly.
After welcoming her first child in May, Simpson became a spokeswoman for Weight Watchers and lost over 50 pounds. "Congrats to Jessica Simpson, Eric and big-sister-to-be Maxwell!" Weight Watchers tweeted Tuesday. "Your WW family is so thrilled for you. What an amazing year you've had!"