updated 11/29/2011 AT 2:00 PM ET
•originally published 11/30/2011 AT 10:45 AM ET
In September, a photo of Aliana Lohan with a brand-new look sparked rampant speculation the 17-year-old model had gone under the knife.
Not so, says Lindsay Lohan’s younger sister, who adamantly denies she underwent any nip-tucks.
“I was cracking up. Because, like, when would I do that? I’m 17 years old,” Ali tells New York Post’s Page Six Magazine in its December issue. “That’s not legal! I would need my mother’s signature, and do you think my mom would ever sign off on that? No!”
Calling plastic surgery “not the right thing to do,” the aspiring model shoots down rumors about her.