DONALD Trump bragged he could have seduced Princess Diana and even made a sick joke about forcing her to have an HIV test in a radio interview - just a few months after she died.

And in another interview Trump told shock jock Howard Stern he thought she was "crazy" but that was a "minor detail", The Sun reports.

The astonishing revelations came to light in a newly unearthed recording of a 1997 interview between the now US President and New York shock jock Stern.

Stern asks the real estate magnate: "Why do people think it's egotistical of you to say you could've gotten with Lady Di?"

"You could've gotten her, right? You could've nailed her."

Trump replies: "I think I could have."

He then jokes about giving Diana an HIV test before having sex with her.

Stern acted out an imaginary scene where Trump tells her to get tested, saying: "Hey Lady Di, would you go to the doctor?"

Trump joins in the made-up scene, saying: "Go back over to my Lexus, because I have a new doctor.

"We wanna give you a little check-up."

The businessman then talked about the looks of the recently deceased mother-of-two, saying: "She had times when she didn't look great" but she was "supermodel beautiful" and "she had the height. She had magnificent skin".

The audio was released on the Factbase website, according to the Washington Post.

Trump was a regular guest on Howard Stern's radio show.

A Kensington Palace spokesperson declined to comment.

In 2015, the BBC TV presenter Selina Scott said Trump gave Diana "the creeps" after the billionaire had "bombarded her at Kensington Palace with massive bouquets of flowers, each worth hundreds of pounds".

Princess Diana's sudden death in Paris on August 31, 1997, aged just 36, stunned the world and sent Britain into mourning.

This article was originally published by The Sun and appears here with permission.