Jessica Simpson is ready to show off her beach bod!

Celebrity stylist Nicole Chavez posted the blurry photo above on her Instagram page, showing a blonde in a cleavage-baring white swimsuit -- along with the message "Guess which mama I get to play dress up with today?"

Simpson re-tweeted the pic w/ a smiley face and tagged her line, the Jessica Simpson Collection, on Twitter, giving us every indication that's Jess in the photo.

Clearly the photo shoot is for the collection, so it's only a matter of time until the clear, official photos are released -- and we can't wait to see them!

Simpson, who gave birth to Ace Knute back in June, has been working out and doing Weight Watchers lately to drop the baby weight. Just last week she shared a photo of her slim physique on the set of her latest commercial for the weight loss program.

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