Snooki "would die" if she becomes as large as Jessica Simpson during her pregnancy.

The 24-year-old reality star is expecting her first child with her fianc Jionni LaValle. Snooki, real name Nicole Polizzi, is worried her baby bump will become as big as Jessica Simpson. Jessica's stomach has been large for the last few months and she is due any day.

"I would die if I were her size," she told Us Weekly, adding that she won't be pigging out on buttered Pop Tarts like Jessica.

"She said she indulged in everything that she wanted. I'm trying to each healthy - fruits, lots of jelly and Italian ices. Nothing fattening at all."

Her Jersey Shore co-star DJ Pauly D, aka Paul DelVecchio, agrees Jessica is huge. The 31-year-old is expecting her first child with her fianc Eric Johnson.

"She's like 45 months pregnant now," Pauly laughed.

Pauly also joked that Snooki will "have to wait until her baby is two or three" before she introduces the child to the second part of their catchphrase GTL which stars for Gym, tan, laundry. The stars of the reality show are known for their love of bronzed skin which they achieve using fake tans. However, Nicole says her baby won't need the product.

"My baby's gonna be naturally tan," she said. "If you look at me and Jionni, we're very dark, so luckily the baby will be very dark.