Valeria Lukyanova, the Ukrainian model known as “Human Barbie,” has rumors of plastic surgery swirling again, after she posted a topless photo online.

The photo shows a much younger Lukyanova posing against a backdrop of mountains, covering her breasts. Lukyanova posted the photo earlier this month with the caption, “17 years.” She's now 23, so the image was likely taken six years ago, before the Internet sensation underwent breast augmentation.

Lukyanova, who became an online sensation in April 2012, has vehemently denied reports that her doll-like appearance is the result of plastic surgery. The Daily Mail wrote that Human Barbie uses makeup and contact lenses to achieve her doll-like appearance and works out to create her slim figure.

Back in February, however, Lukyanova revealed that she did undergo plastic surgery once, but only for breast augmentation, as many users on the Internet have speculated. The confession came after the blonde beauty met “Human Ken,” Justin Jedlica, who has spent more than $100,000 on plastic surgery to look like a Ken doll.

“Justin said bad things about me, but he had more than 90 operations, while I had only one,” Lukyanova told the Sun. “I am not hiding that I’ve had plastic surgery. I had breast implants because I want to be perfect. He would do better not to comment on who is plastic and who is not.”

In late June, Lukyanova reaffirmed to NewMediaRockstars.com that she never had plastic surgery and shared her thoughts on rumors via email.

“What is written about me in the Internet is not true,” she said. “I never wanted to be like the doll. I love myself too much to imitate someone, especially a piece of plastic…No plastic surgery I did not do, with the exception of breast enlargement.”

“I am not against plastic surgery,” she said. “But the nature of my appearance [is] because all the people in my family, very beautiful! It’s a genetic trait of my family.”

Human Barbie said the rest of her appearance comes from “sport massage, healthy living and professional makeup.”

TheDirty.com’s Nik Richie, however, said Lukyanova is fake and uses Photoshop to alter her images. "All you people gushing over Valeria Lukyanova are a bunch of morons,” The Dirty Army wrote. “This girl is a FRAUD. She had been badly photoshopping her photos since the beginning of her time online. Her videos aren’t photoshopped. Does she still look the same? Not only are her looks fake/photoshopped, this girl is also mentally insane. There is a ton more of videos out there and as you can see from them, she looks nothing like she does when she photoshops her photos."

Lukyanova became an international sensation after she posted several videos and photos online and generated a large fan base. Jezebel was the first media outlet to take notice of Lukyanova in April 2012, after she posted makeup tutorials and videos online months earlier.

Referred to as “Human Barbie” and “Living Doll,” Lukyanova grew more famous when she was the subject of an interview with V Magazine. The Internet starlet talked about her life as an "astral projection" teacher at the School of Out-of-Body-Travel, which she explained is a school where one learns how to go on a spiritual journey.

Valeria Lukyanova
If you've wondered what the “Human Barbie” is up to lately, Ukrainian Internet star Valeria Lukyanova is back in a new documentary entitled, “Space Barbie: My Life Online,” revealing more details about her life as a “living doll.” Vice

"It's an international school in which our instructors show students how to leave their physical body and travel in their spiritual body, where you can visit any place on the planet and in the universe," she told V Magazine. "I know that this is the future of mankind and that it has huge potential."

Most recently, she was the subject of a documentary entitled “Space Barbie: My Life Online” where she focused on her role as a “time-traveling spiritual guru.” Lukyanova said she takes on the Human Barbie persona only to build awareness about her spirituality.

“I use my appearance to promote my spiritual ideas,” she says. “It works perfectly well. That’s why I will always use this tool….If a nun starts talking about spirituality, will anyone notice her? No, no one will.”