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Jessica Simpson, Twitter


This brings a whole new meaning to busting out.

Jessica Simpson showed off some serious cleavage as she pushed her daughter Maxwell Drew in a stroller Friday afternoon.

"Just taking a walk around the block... Street legal???," the Fashion Star mentor tweeted Friday, along with a majorly busty photo.

But, power-walking with Maxwell (in low cut tops) isn't the only thing the 31-year-old singer has been doing to shed the baby weight. 

After signing on as Weight Watchers' new spokeswoman, Simpson has been snapped hitting the gym regularly to drop the forty-plus pounds she gained during her pregnancy.

We'll sure she'll keep us, um, abreast of her weight-loss progression.