THE girlfriend of Olympic champion Michael Phelps has dropped a bombshell — she was born intersex and lived as a boy until her teens.

In a post on her Facebook page, Taylor Lianne Chandler, 41, revealed that she was an intersex baby and her birth name was David Roy Fitch.

media_camera In the dark ... Olympic champion Michael Phelps had no idea about his ex-lover’s past.

“I was born with male genitalia with no testicles, but I also have a uterus and no ovaries,” she told Radar Online.

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media_camera Secrets ... Taylor Lianne Chandler says Michael Phelps was unaware she was born a boy.

She decided to change her name as a teenager and later underwent surgery to become a woman.

Chandler claims Phelps, 29, was unaware that she was born intersex and that she did not tell him during their relationship.

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Chandler, who dated the swimmer before he checked into rehab in September, says she met Phelps on hook-up app Tinder.

media_camera True passion ... Chandler says she and Phelps had an amazing sex life.

The pair met up at the Olympian’s Baltimore home to watch a football game, she told Radar Online.

“One thing led to the next, and we made love during halftime,” she said.

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“Later, we had sex again. The intimacy with him was amazing! It was the first time in my life that someone has made me feel like a true woman.”

Phelps was arrested for drunk driving and entered rehab last month.

His ex-lover says she emailed him about her complicated history but he has yet to respond.

media_camera Selfie... Facebook image of Michael Phelps' girlfriend, Liane Chandler.

Originally published as Phelps’ lover was raised as a boy