Leon, 28, who is the only child of Kody, 54, and Meri Brown, 52, uses they and them pronouns and came out as transgender in June 2022.
Leon posted the wedding photo, captioned: “a lil queer joy,” to Instagram on Sunday.
The snapshot showed the TLC alum with their partner Audrey Kriss, 27, who also uses they and them pronouns, posing with the bride, Ocean Candler Lunsford, and another friend.
Leon sported a black bottom-up shirt under a dark blue blazer and Audrey donned a black top under a brown jacket.
Last week, the 28-year-old reality TV star shared a full-body pic on social media after they re-shared Ocean’s Instagram Boomerang on their Story.
The clip showed the friends clinking glass jars with flowers inside together and was shot at the opening of Ocean’s Petals & Pages store in Denver, Colorado.
Leon held onto a few books while wearing a button-up denim top and a brown T-shirt underneath.
To bring the outfit together, they matched it with a pair of blue jeans and slip-on shoes.
“My heart just bursts here,” they captioned their post along with an orange heart emoji.
In September, the rarely-seen child of Sister Wives stars Meri and Kody showed off their smile in another Instagram photo.
Leon shared a huge smile with their companion while the sun radiated in the background.
They had a pair of sunglasses around their neck and a nose ring.
Audrey captioned the post with a sunset emoji.
In August, The U.S. Sun broke the news that Leon secretly wed their fiancé Audrey.
According to the marriage certificate, Leon and Audrey tied the knot on October 29, 2022, at a house in Colorado Springs, Colorado.
Because there was no judge or officiant, they indicated that the ceremony was “self-solemnized” on the certificate.
The couple became engaged in January 2019 and moved to Denver, Colorado in June 2022.
A source confirmed Kody did not attend the wedding because he is “very much estranged” from Leon.
Leon distanced themself from the famous family due to their estrangement.
That same month, the U.S. Sun also revealed that Leon’s relationship with their father is nonexistent following the reality star’s gender-affirming surgery.
A family source shared that Kody “does not support Leon’s transition at all.
“He’s actually disgusted by it, as terrible as that is.”
The insider continued: “Kody is telling close friends, ‘This is a new person.
“‘I don’t know who this person is, but this is not the little girl that I raised.'”
The source continued: “They don’t have a relationship anymore, and because of it, it has affected his relationship with Meri. 100 percent.”
Meri – who is Leon’s mother and Kody’s ex-wife – is “standing by” their side.
The source concluded: “Leon is her only child, and she wasn’t going to disown them.
“She will pick Leon over Kody every day.”