[caption id="attachment_73925" align="aligncenter" width="467"] Jessica Simpson showed off her post-baby body in a one-piece white bathing suit while shooting for her Jessica Simpson Collection via Twitter on Friday, Nov. 15 Credit: Courtesy of Nicole Chavez
[/caption]Jessica Simpson Shows Off Post-Baby Bod

On Friday, 33-year-old singer and fashion designer Jessica Simpson tweeted an Instagram picture of herself in a white one-piece swimsuit taken by Nicole Chavez during a recent Jessica Simpson Collection photo shoot.

Simpson's tweet included Chavez' caption: “Guess which mama I get to play dress up with today?”

Simpson has reason to show off her body. Known in the past for her well-toned and thin form, she dealt with extreme public criticism and mocking when she gained approximately 70 pounds during her first pregnancy and then couldn't shed it after giving birth to daughter Maxwell.

Since signing a contract with Weight Watchers during that pregnancy, Simpson has lost more than the 70 pounds through diet and exercise and has become one of Weight Watcher's successful celebrity spokespeople. She then kept the weight off during her second pregnancy and since the birth of her son Ace this past summer.

Simpson, 33, told MomFeeds last month, "I'm a lot more confident this time around. With Maxwell I didn't think about the weight I was gaining, and the first time I stepped on a scale and looked at the number ... I mean, that wasn't a number I had ever even considered ... and I was faced with a pretty serious truth."

https://twitter.com/JessicaSimpson/statuses/401522734082957312

It's evident to everyone that Simpson is extremely proud of her progress. On November 8th, she tweeted: “Couldn't stop smiling on set for my new @weightwatchers campaign today! #happy."

Fans and critics have expressed congratulations and well wishes to the icon on Twitter and elsewhere online and offline.

[caption id="attachment_64089" align="aligncenter" width="306"] Jessica Simpson flaunts big baby bump in Twitter photo JESSICASIMPSON @ TWITTER
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Jessica Simpson Wears One-Piece Bathing Suit, Shows Off Post-Baby Body: Picture
http://www.usmagazine.com/celebrity-body/news/jessica-simpson-wear-one-piece-bathing-suit-shows-off-post-baby-body-picture-20131611

Jessica Simpson Rocks White Swimsuit During Photo Shoot
http://www.huffingtonpost.com/2013/11/17/jessica-simpson-swimsuit_n_4291865.html