Miley Cyrus claims her boobs are natural but plastic surgery experts say otherwise.

Cosmetic physician Dr. Tahl Humes from Colorado said Cyrus appears to have had a minor breast augmentation.

“If you look at the volume, it appears she had a breast augmentation… She might have had small implants, which is nice, because she is a small girl with a small frame,” he said.

Another plastic surgeon, Dr. Brian Glaat from New Jersey–considered a big-gun in breast augmentation–pointed out that the outline of the implants are visible on the lower portions of Cyrus’ berast.

“Miley does indeed appear to have had a breast augmentation. The outline of the implants are clearly visible in the lower portions of her breasts,” he said.

Despite the claims of numerous experts in plastic surgery, Miley Cyrus responded on her Twitter account saying that her new perky bust are result of hard work and not because of silicone implants:

“Thank you for the compliment but these babies are all mine,’ Miley wrote, adding: ‘I wish they’d realize you don’t have to be fake to be beautiful!”

The above photo was taken during CNN’s Hero of the Year awarding ceremony at the Shrine Auditorium in Los Angeles last Sunday, December 12, when the speculations about Miley’s fake books started.

Photo Credit: Zimbio