Look out Jersey! Nicole "Snooki" Polizzi is already pumped to show off her 42-pound weight loss!

The 25-year-old reality star posted two new Instagram pictures of herself in bikinis on March 29. "Beach body ready!" she wrote.

Photos: See Nicole's Odd Hat Choice

Snooki looks amazing, especially since she just gave birth to her baby boy, Lorenzo, last August.

It seems her son with fiancé Jionni LaValle is what encouraged her to get into shape.

Watch: Snooki Has Lorenzo Baptized

"I know everything there is to know about how to look glam during labor! It’s a bitch, but it’s worth it! First impressions are everything, so when you meet your baby for the first time, you have to look flawless," she wrote in a March 28 post on celebuzz.com.

Her tidbits include the advice to apply makeup at the hospital while you're waiting to dilate and to think about your colors.

Photos: 15 Reasons Why Snooki Is the Coolest Mom EVER

"Make sure you choose your makeup palettes wisely, because the hospital rooms are boring, the walls are white; it’s just not a good look," she advises.

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