So sporty already! Maci Bookout finally introduced her son Maverick, whom she shares with fiancé Taylor McKinney, to the world after giving birth in May.

The Teen Mom OG star, 25, showed off the adorable 3-month-old in an Instagram photo on Tuesday, September 13. In the snap, he’s wearing a baseball-themed onesie with the words “Team Dad” emblazoned across the front. “Hi World. My name is Maverick, and I’m the cutest little guy in the world! Nice to finally meet you! #MrMaverick #HereIAm,” she captioned the pic of the smiling infant.

Bookout is also mom of Bentley, 7, whom she shares with ex Ryan Edwards, and daughter Jayde, 15 months, with McKinney. On Tuesday, the reality star also shared a collage of all three of her children dressed in the University of Tennessee Volunteers gear that ranged from an orange tutu to a onesie to checkered overalls.

“The cutest Tennessee Volunteer fans I ever did see! #GoBigOrange #VFL #VolNation,” the Chattanooga, Tennessee, native captioned the composite Instagram pic.

Earlier this month, Bookout celebrated her bachelorette party in Las Vegas with several of her closest friends ahead of her October wedding. The group hit up several Sin City hot spots, including Liquid Pool Lounge at Aria Resort and Casino and 1 Oak nightclub.

McKinney proposed to the MTV star in January, just two days before she found out she was pregnant with her third child. However, Bookout told Us Weekly she’s not planning on any more kids anytime soon. “There are going to be some permanent birth control decisions made,” she told Us in February.

The current season of Teen Mom OG has documented her unexpected pregnancy with Maverick as well as her wedding planning. 

Teen Mom OG airs on MTV Mondays at 9 p.m. ET. 

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