updated 05/09/2012 AT 8:00 AM ET
•originally published 05/09/2012 AT 9:05 AM ET
“I am so in love with baby Maxwell,” Simpson, 31, Tweeted Tuesday. “I want to cry every time I look at her. Motherhood is by far the best thing I’ve ever experienced.”
The first-time mom isn’t the only one doting over the new addition to the Simpson family.