Jessica Simpson Shares New Adorable Pictures of Baby Maxwell

New photos of Jessica Simpson and Eric Johnson's baby daughter Maxwell have left fans with warmed hearts as they flooded social media sites with compliments for the little one.

Maxwell Drew Johnson was born on May 1, weighing an impressive 9 lbs. and 13 oz. Simpson updated her fans with new photos of her 4-month-old daughter via Twitter on Wednesday while she celebrated her fiancé's birthday. Johnson turned 33 years old.

"Last year at Daddy's party, Maxwell was in my belly," Simpson posted on Twitter along with a photo. "This year she's in my arms!"

She later added, "Daddy's 33rd Birthday," along with a photo of the NFL star with baby Maxwell.

Simpson, 32, recently debuted her post-baby body on "Katie" earlier this month. The singer and television personality has been busy since Maxwell's delivery, having signed a lucrative contract with Weight Watchers and filming her show "Fashion Star."

Before getting back to work though, Simpson posted a happy message shortly after Maxwell's arrival.

"I am so in love with baby Maxwell," Simpson exclaimed on Twitter in May. "I want to cry every time I look at her. Motherhood is by far the best thing I've ever experienced."

The first picture of baby Maxwell was revealed in People magazine and caused a stir on social media sites with people weighing in on the bundle of joy.

"We stare at her all the time," Simpson gushed to People magazine. "We can't get enough! My life has completely changed. From how I sleep to what I think about, Maxwell has definitely taken over everything."

In the meantime, Simpson has publicly struggled with her weight as she tries to shed the pounds put on while pregnant.

"I'm not a supermodel," said the singer earlier this month to USA Today. "I'm just your everyday woman who is trying to feel good and be healthy for her daughter, her fiancé, and herself."