Jason Pfeiffer Alleges Gay Affair with Michael Jackson; Dr. Arnold Klein Backs Him Up

Jason Pfeiffer, a former dermatologist's assistant and current CEO of a medical company, tells Extra that he had an affair with the late Michael Jackson.

Moreover, he was his boyfriend right up until the King of Pop died.

Pfeiffer claims he had a very "passionate and sexual" relationship with Jackson, and has kept several messages that the music superstar left for him.

"We definitely hit it off the first time we met," Pfeiffer says, claiming they met in 2008 at the office of Jackson's famed dermatologist, Dr. Arnold Klein.

Klein is a longtime friend of Jackson's and, as you may know, is rumored to be the biological father of the singer's two older children, Prince and Paris.

In any case, Dr. Klein backs up Pfeiffer's account, saying that he knew Jackson and Pfeiffer were together when he once walked in on them shirtless.

Jason Pfeiffer: Dr. Arnold Klein's former office manager.

"When you see two people looking at each other you know what's happening. I was just very happy for both of them," Arnold Klein said of the discovery.

Pfeiffer says he and Jackson connected because of their childhoods.

"We were just sitting there and we both started to cry and I got up and went over to him and said it's going to be okay Michael... We hugged," he says.

"It was kind of then that the hug was a little bit more ... It wasn't until a few months later that it was obvious that Michael had feelings for me as well."

Their friendship soon blossomed into something more, according to Pfeiffer, even though Jackson emphatically denied throughout life that he was gay.

"I just assumed that he was probably bisexual," Pfeiffer says, claiming their relationship lasted until the day Jackson died. "I know we loved each other."

"I know he told me all the time. I believe he was probably my soulmate."

So why come forward now?

"Setting the record straight and finally telling the truth, as opposed to hiding in some house ... I think he would have approved of that, yes."

As for Klein, he does not believe he betrayed Jackson because he says Jackson never tried to hide his sexuality ... even though it appears clear to pretty much everyone that he went to extreme lengths to hide his sexuality.

Klein told TMZ, "Was he gay? Yes." He then went on to say his declaration was not meant to disparage Jackson, but to shoot down rumors that Jackson was a pedophile. Klein says Pfeiffer's gay affair was the only one he knows of.

Pfeiffer adds, "Michael was not ashamed of his sexuality."

Klein and Pfeiffer say they have received numerous "horrible death threats" since their statements became public. Both currently have bodyguards.

Michael Jackson and Dr. Arnold Klein.

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