11/30/2011 01:15 pm ET | Updated Jan 30, 2012

Ali Lohan Was 'Cracking Up' Over Plastic Surgery Rumors (PHOTOS)

A few months ago, 17-year-old Ali Lohan, better known as Lindsay Lohan's little sister, starting looking very different.

Some chalked it up to growing up, while others suspected the teenager had taken a trip to the plastic surgeon. But the young model, who signed to Next Model Management in August, is still laughing about the speculations.

The next generation of Lohan is Page Six Magazine's cover girl, available on Dec. 1 inside the New York Post, and attributes the changes in her face to a growth spurt.

Us Weekly, reports she told Page Six Magazine, that she was "cracking up" over the rumors.

"Because, like when would I do that [surgery]? I'm 17-years-old. That's not legal! I would need my mother's signature, and do you think my mom would sign off on that?" she asks." No! It's not the right thing to do."

When it comes to Dinah Lohan's parenting, one can never be too sure. Although Dina did tell The Huffington Post in September, the rumors were, "So beyond ridiculous. [Ali] grew 3 inches over the summer."

Ali also opened up about watching her sister's battle with drug and alcohol addiction, telling the magazine, "I just say no [to drugs]. I'm lucky enough that I had my sister to learn from."

Despite this education of sorts, she and Lindsay are extremely close, Ali even tagged along on Lindsay's nude photoshoot for Playboy, last month.

"You can't trust anyone so we talk to each other about everything," she said, clearly already world weary from watching her sister's path through Hollywood. "I admire how strong she is. That's why Lindsay and me are so close, because we're able to talk about those things together."

Check out photos of Ali's new and old look: