"Jersey Shore" reality star Jenni "JWoww" Farley has given birth to a baby girl.

"She is here! Meilani Alexandra Mathews 7lbs 13 ounces," her fiance Roger Mathews tweeted Sunday. "Words can't describe what looking into your child's eyes can do to you. I'm humbled."

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E! News, the first to report the birth, specified the infant was born Sunday at 12:49 p.m.

"Jenni and Roger are so excited to welcome the newest guidette to the world," Farley's representative said in a statement. "Meilani and her parents are doing great and are happy and healthy. Meilani is already looking to trade her baby bottle for barbells."

A representative for MTV -- which aired "Jersey Shore" and in April renewed the spinoff "Snooki & JWoww" for a fourth season -- said in a statement, "We're fist pumping in celebration of [their] new baby girl. We're so excited for the new parents and to welcome the newest member to the MTV family."

Her castmate Nicole "Snooki" Polizzi told E!, "I'm so excited for my best friend and so proud of her! She's going to be an amazing mother & I can't wait to be her daughters god mommy!"

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Mathews proposed in September 2012 during a skydiving session with Farley. She later issued a statement saying, "We are officially engaged and look forward to this next chapter in our lives! Thank you to all of our fans for their well wishes. We hope they find love at the Shore too!"