By Michelle Lee, Hollywood.com Staff

Jessica Simpson is arguably best known for a handful of things: Chicken of the Sea, Newlyweds, shoes, Daisy Duke and, let's face it, boobs.

And as her presence on Twitter has grown, so have her infamous overshares.

The 32-year-old star, who announced her latest pregnancy via Twitter, of course a few days ago, tweeted a revealing pic of her pregnant cleavage while on vacation in Hawaii on December 27.

Her signature cowboy hat, makeup-free smile, and what's this? One big bikini-clad boob coming out to say hello.

But it's certainly not the first time Jessica's flaunted her ample assets on Twitter. Remember this porny post-baby pic in June, in which she questioned ""Street legal?""

And her family Halloween pic featured poultry, pigtails and, of course, a pushup bra.

<a href=""http://polldaddy.com/poll/6796110/"">Should Jessica Simpson just cover up already?</a>[Photos: Twitter]

Follow Michelle on Twitter @HWMichelleLee

More: Holy Boobs! Jessica Simpson Takes Post-Baby Cleavage For a WalkJessica Simpson's Graphic Overshare on KimmelPregnant Jessica Simpson's Nude Cover: 6 Moms-to-Be Who Bared All

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