New Mom Jessica Simpson Flaunts Major Cleavage During 'Walk Around the Block'

Jessica Simpson sure loves her over-the-top Twitter photos!

On June 22, the new mom, 31, uploaded a new picture that puts her engorged breasts front and center. "Just taking a walk around the block," Simpson, who welcomed daughter Maxwell Drew on May 1, wrote. "Street legal?"

PHOTOS: Jessica Simpson's too-tight dresses

Simpson has been heavily focused on her appearance since becoming a first-time mom seven weeks ago. Her main incentive: slimming down as a part of a $4 million Weight Watchers deal.

PHOTOS: Jessica Simpson's most outrageous moments

"The cool thing about the program is that it focuses on healthy habits for the long-term (and I can still indulge in my guilty pleasures every now and then, too)," Simpson explained on her official Facebook page. "I have actually gotten a group of friends together who are going to be doing it with me."

Simpson, who is still engaged to Maxwell's dad, Eric Johnson, 32, has also given up fast food.

PHOTOS: Jessica Simpson's maternity style

"She's breast-feeding Max and wants her to get the best nutrition," a source recently told Us Weekly of the singer, whose pregnancy snacks included butter Pop-Tarts and Kraft mac 'n' cheese. "She has to cut down on fast food. Besides, it's a great way to jump-start the massive diet ahead."

This article originally appeared on Usmagazine.com: New Mom Jessica Simpson Flaunts Major Cleavage During "Walk Around the Block"

MORE ON WONDERWALL:

Jessica Simpson and Eric Johnson: Daughter Maxwell Amazes Us Every Day

Gross Encounters: When Celebrity PDA Goes Bad

Stars Who Are Celebrating Their First Father's Day