Nicole "Snooki" Polizzi recently told Us Weekly that at five months pregnant, she hasn't yet had to add maternity clothes to her wardrobe. The pint-size "Jersey Shore" star, who is expecting her first child with fiance Jionni LaValle, said she was worried that her baby bump will grow as large as Jessica Simpson's, joking "I would die if I were her size."

But the expectant guidette took to Twitter Friday evening to share a photo revealing what appears to be an overnight growth spurt (or more likely, a beach ball stuffed inside her pink tunic).

This isn't the first time Snooki has tweeted a playful pregnancy-themed photo. Last month, she posted a picture of herself in a fighting pose, with the caption "Preggers power. I'll cut a bitch if you mess w my baby!"

While Snooki's bump photo was clearly a gag, Alyson Hannigan, due to give birth in June, tweeted a more credible comment on the matter Tuesday. "Congrats to Jessica Simpson! Does this mean I now have the biggest baby bump in Hollywood?" the "American Reunion" star wanted to know.

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