Pope Leo XIV’s older brother, known as a staunch MAGA supporter and often referred to as the family’s “black sheep,” recently admitted to a multitude of transgressions, stopping short of murder and incest, during a penance session with the pontiff.

At 73, Louis Prevost made an unexpected appearance on an episode of “Piers Morgan Uncensored,” scheduled to premiere on YouTube this Friday. During the show, he shared insights into the profound personal transformation he experienced following his younger brother’s elevation to the papacy.

Prevost described his return to the Catholic Church after years of feeling adrift, convinced that his sins were too overwhelming for the average priest to handle.

With his brother now occupying the church’s highest position, Prevost decided to seek confession directly from him, as revealed in a preview clip of the episode obtained by The Post.

However, Prevost recounted to Morgan and his panelists that the Pope initially rejected his request. It wasn’t until a visit in October that his brother finally agreed to hear his confession.

“I asked him to take my confession, and I spilled all of the beans to him about my past 50 years, so he is well aware — that kind of confirms what he thought, I’m sure — and now he’s aware that I’m back and wholeheartedly back,” he said.

Prevost refused to specify what exactly the steaming “beans” were on-air and tantalizingly offered that it included “everything short of murder and incest.”

The panel balked at his admission while Morgan burst out laughing and swiftly concluded the segment.

Prevost acknowledged that he was perceived as “the black sheep of the family” — no thanks to the ire he’s frequently drawn for his stance as “a MAGA kind of guy.” Still, he noted he’s trying to temper his online attitude for his family’s benefit.

“Being more Catholic, being more observant, shall I say, being less hostile towards people I don’t agree with. I’ve toned down my tweets and my Facebook posts because they always catch fire and end up on the news,” Prevost told the panel.

He admitted that his other brother, John Prevost, has asked him to be less “vocal about things” that are “so negative or so offensive.”

Prevost said that his two younger brothers are noticeably closer, which he credited to his prolonged absence while he was serving in the US Navy.

“I missed a lot of stuff with them growing up, the thing they probably remember most is me beating up on them all the time,” he told the panel.

“That drilled them to be closer together. They talk pretty much every day. I get to talk to my brother, the Pope, maybe once a week,” he added.

After Pope Leo XIV was elected in early May, online sleuths dredged up Prevost’s profanity-laced social media posts, including one where he called Rep. Nancy Pelosi a “drunk c—.”

Prevost insisted during another appearance on Morgan’s show, “I wouldn’t have posted it if I didn’t kind of believe it.”

The full interview with the pope’s no-filter brother will be available to watch on Piers Morgan Uncensored, YouTube.