Kristi Noem’s cross-dressing husband, Bryon, allegedly once told a dominatrix sex worker he wanted to be her “trans bimbo slut” — and revealed 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 is said to have once texted her.

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

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

The revelations emerged after Noem, who is married to the former Homeland Security Secretary, was outed as cross-dresser obsessed with the “bimbofication” fetish community.

Noem hasn’t commented on the latest reports about his secret fetishes.