I'm back in a swimsuit! Jessica Simpson teases fans with a sneak peek of her poolside shoot five months after baby

Since welcoming her second child in June, Jessica Simpson has noticeably been slimming down.
And there's no doubt the 33-year-old singer is proud of her impressive weightloss efforts.
Instead of enlisting the help of her sister Ashlee to promote her clothing line again, the mother-of-two confidently took on modelling duties herself by slipping into a plunging white swimsuit from her JS collection on Thursday.

White hot! In a behind-the-scenes snap, Jessica Simpson showed off her incredible post-baby body in a plunging swimsuit from her JS collection

After her stylist Nicole Chavez shared a behind-the-scenes snap from the photo shoot on Twitter, Jessica decided to retweet the post for her own followers to see.
';) @JSCollection RT @nicole_chavez: Guess which mama I get to play dress up with today? #bts,' the buxom blonde posted with the teaser.

Though the shot is a bit blurry, it's clear that the Fashion Star judge is showcasing her slender frame as she lounges poolside in halter-style one-piece with her long blonde locks flowing past her shoulder.

Keeping the weight off! Jessica is reportedly being paid $4million to be a Weight Watchers spokeswoman

Jessica recently shot a campaign spot for Weight Watchers and is being paid a reported $4million to be a spokeswoman.
'When I had Maxwell I gained a lot of weight. More than I thought I would,' the Weight Watchers spokeswoman told Tumblr's MomFeeds blog. 'And when it came time to try to take it off, it felt overwhelming.'
'With a toddler on the run and an infant to look after, I knew I needed a plan that's simple and fits into my life along with the support that's so important to my success.
'I know Weight Watchers works so I got on the plan again.'

Easier this time around: The blonde beauty first enlisted the help of Weight Watchers after welcoming her first born Maxwell (picture) with Eric Johnson (left)

Jessica and Eric Johnson, 34, welcomed baby Ace in a planned C-Section on June 30, and since then, she's been working to shed that baby weight.
As the star - who also has a 19-month-old, Maxwell - was heavily pregnant with her second child, she had her sister Ashlee, 29, pose as the face of her collection.
Ashlee told People that it was an 'honor' to do the country-themed fashion shoot orchestrated by her older sister and added that when it comes to business, they like to 'keep it in the family.'

Not this time! When Jessica was heavily pregnant, she used her sister Ashlee as a model for her clothing collection

What a change! The singer has surely slimmed down since displaying her ginormous baby bump in June