Gender bender

wonder if she ordered the 12 inch crank j/k at least he's happy

Chaz Bono, shown here before completion of his surgery, was born the daughter of Cher and Sonny Bono

Now that he's finally in the body he always felt he belonged in, Chaz Bono said he's enjoying something that took decades to accomplish.

"It's a long process going back almost a decade," Bono, formerly known as Chastity, told, Entertainment Tonight in an interview airing Thursday and Friday. "I got clean and sober in 2004 and I couldn't have done this before that."

Born the daughter of Cher and Sonny Bono, Chaz, 40, has been undergoing a female-to-male sex change since March, a process that has already had significant physical changes on his body.

"It lowered my voice," he said. "Fat redistributes, muscle growth, hair growth, sex drive increases."

One thing that didn't need changing: His mental and emotional concept of himself as fundamentally male.

People.com: Cher 'will support' Chaz's sex change

"I always felt like the male from the time I was a child," he said. "There wasn't much feminine about me."

"I believe that gender is something between your ears, not between your legs. That is something I discovered in the early '90s. It was just a long process of being comfortable enough to do something about it."

It was turning the milestone age of 40 that spurred him to action.

"I was turning 40 and I thought it's now or never. I want to still feel vibrant and be able to enjoy my life in a male body and not wait until I am an old man.