Kristi Noem’s cross-dressing husband, Bryon, allegedly once told a dominatrix he wanted to leave his wife and become the sex worker’s “trans bimbo slut” – revealing his desire to go by the name “Crystal.”

Shy Sotomayor claimed in an interview with the Daily Mail published Friday that Noem, 56, had opened up about his gender fantasies during their secret, years-long online tryst.

“I need to be your trans bimbo slutt,” he once texted her.

In other messages, he allegedly fantasized about leaving the mother of his three kids and told the dominatrix, who is also married, that she was “so much better” than his wife.

“I can see us leaving our spouses for each other,” he is said to have told Sotomayor at one point.  

Noem allegedly gushed, too, about wanting to have a boob job, face surgery, and hormone therapy.

“I will be your trans girl,” he wrote in one text. “Long hair, big lips, boobs … pierced boobs.”

When Sotomayor once asked if Noem wanted to be a woman for her, he allegedly responded: “I think I do … hair removal. Huge fake tits. A—implants. Hormones.”

Elsewhere, he mused about what his name would be if he did undergo a gender transition.

“I want to be a Crystal so bad,” he said in one text. “I want to be a woman so bad.”

The sex worker recalled being shocked that Noem had chosen a name so similar to that of his wife.

“I was just jaw to the floor, thrown for a loop that he wanted to be called that, so close to her name, when he could have gone with Stephanie or something,” Sotomayor said.

The revelations emerged after Noem, who has been married to the former Homeland Security Secretary for more than 30 years, was outed as a cross-dresser obsessed with the “bimbofication” fetish community.

After photos of Noem wearing gigantic fake breasts surfaced, his wife said via a spokesperson that she was “devastated” and the family was “blindsided” by the embarrassing revelation.

Meanwhile, in his slew of conversations with the dominatrix, Noem repeatedly trashed his wife.

Sotomayor, for her part, claims she started interacting with Noem way back in 2016 when he used the pseudonym “Jason.”

She alleged that Noem would cough up thousands of dollars for a single conversation with her.

Eventually, Sotomayor said Noem became so demanding of her time that she ran his phone number and post box address through an online search.

It was only then that she learned his true identity, Sotomayor claimed.  

When she started being critical of Noem’s wife – especially in the wake of her controversial stint as “ICE Barbie” earlier this year – he appeared to become defensive, the messages show.

“I do like my wife, and I know you don’t,” he wrote earlier this year, adding in another text that “she’s a good person.”

She claims they last interacted on March 22 – just weeks after his wife was fired from her Homeland Security role.

Noem, for his part, hasn’t yet commented on the latest reports about his secret fetishes.