Teen Mom OG star Maci Bookout celebrated her upcoming wedding with a fun-filled bachelorette party in Las Vegas over Labor Day weekend.

The reality star hit up the Liquid Pool Lounge at the Aria Resort in Sin City, sporting a blue bikini and trucker cap emblazoned with the word "bride" in gold lettering.

WATCH: 'Teen Mom OG' Star Maci Bookout Is Engaged -- See the Ring!

Bookout and her friends posted their own snaps of the bachelorette to Instagram over the weekend, using the hashtag "GingersLastBinger," including a video of the bride-to-be twerking, which she captioned, "Sorry Mom!" 

On Saturday night, the crew kicked off celebrations at 1 OAK Nightclub inside The Mirage Hotel & Casino. The 25-year-old wore a cute white romper with a bridal sash reading, "Mrs. McKinney."

"Cheers to my last weekend out as a 'Bookout' - Vegas, I hope you're ready for me!" Bookout wrote on Instagram.

At the club, the bachelorette celebrated with a huge pink cake and champagne.

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Taylor McKinney, Bookout's longtime love, proposed in January. The couple has two children together, 1-year-old daughter, Jayde, and 3-month-old son Maverick Reed. The Bulletproof author has one older son, Bentley, 7, from a previous relationship with Ryan Edwards.

Meanwhile, Teen Mom OG costar Farrah Abraham is stirring up controversy again -- this time with a photo of her 7-year-old daughter in a bikini. Find out more in this video.