The 57-year-old reality TV star said the implants will be better on Ozzy's desk "than on my chest 'cause they're awful".
She confirmed reports of her plans during an appearance on the Today show in the US.
Sharon is currently competing on NBC's The Celebrity Apprentice.
She said the show is the hardest thing she has ever done in her career, but also the best.
"It's constant mental pressure, and you've got such a short time to do each challenge. It's really tough," she said.