“These ladies make my heart burst with love sprinkles,” the fashion designer, 38, wrote on Instagram on Tuesday, May 28. “#MAXIDREW #BIRDIEMAE.”
In the social media upload, Maxwell smiled at the camera in a star-patterned sweater while holding her infant sister in her arms. Birdie wore a white cardigan and pink eyelet dress.
“Birdie Mae Johnson,” Simpson wrote on Instagram at the time. “10 pounds 13 ounces.”
She shared the first close-up photo of her little one the following month with Easter family photos. Birdie slept in a floral dress and matching headband.
The singer celebrated her first Mother’s Day as a mom of three earlier this month by “hormonally crying reading” cards from her family. She shared her husband’s sweet message on her May 12 Instagram Story.
“Dear Jess, You have literally taken motherhood to the next level,” the former NFL player, 39, wrote. “You have given us three kids and I could not be more grateful or in awe of you. You make everyone [sic] of my days special. I love you with all my heart.”
Simpson’s children’s card read: “Dear Mom, You could not be more beautiful, more funny, more loving, more fun. We love you to infinity and beyond and tie a couple loops around the moon on the way back and then back to your heart. That’s how much we love you. You are the greatest mom in the universe.”
The former reality star and the athlete tied the knot in July 2014 at the San Ysidro Ranch in Montecido, California.
For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!