Just two days shy of her 24th birthday, “Teen Mom OG” star Farrah Abraham headed to Las Vegas for a birthday pool party — and she was sure to dress for the occasion.

Wearing a bright, printed bikini and armed with a water gun, the mother of one posed for photos at the Palms on Friday night:

The birthday girl took poolside photos with fans and was also joined by “Pawnstars” star Chumlee and “Jersey Shore” alum DJ Pauly D.

In other “Teen Mom” news, Maci Bookout gave birth to her second child, a baby girl named Jayde, on Friday.

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