Cage fighter, Reid, is fond of wearing heavy make-up and dressing as a woman called Roxanne and Price is set to give the inside story on what he was like, reported Contactmusic.
"It is a shame there are people in denial out there. I mean, look at my ex, Alex Reid. He denied his cross-dressing for years but has now admitted it. I will tell my side of that story in my next book," Price said.
"Honesty is always the best policy when it comes to something as important as your gender identity."