Los Angeles ( CNN ) -- Recent photos of Lindsay Lohan 's teenage sister sparked online speculation over the past week that the 17-year-old Ali Lohan changed her face , which her publicist denied Monday . `` Aliana has never had any type of plastic surgery in her life , nor has she ever considered it , '' said her publicist , Steve Honig . Buzz about apparent changes in Lohan 's face started on websites including Hollywoodlife.com , which said , `` We love Lindsay 's little sister , but these shocking photos make it look like her beauty is not all-natural ! '' Honig , in a written statement to CNN , said Lohan , who recently signed a modeling contract , has no reason to have plastic surgery . `` Her success as a model lies with her natural looks and she has no interest in changing that , '' he said . Honig , however , did not dispute that Ali Lohan 's face today is different from when she was younger . `` During the past two years , she has gone through a normal teenage growth spurt that has made her taller and slimmer , '' he said . `` It has also slightly changed the composure of her face , all of which is typical of what happens to kids in their mid to late teens . It 's what most people refer to as the awkward stage . Ali is growing up ; that 's all . '' The director Next Model Management , the agency who signed Lohan , told CNN Monday she could `` confirm that Aliana Lohan has not had any surgery . '' `` As a young girl who is growing up , it 's natural for her facial features to change slightly , and we see this with many of the younger models we represent , '' Alexis Borges said . Aliana is a beautiful 17-year-old girl who is growing into her face and body , as is the norm for someone of her age . '' Lindsay Lohan , who knows what it 's like to be a young target of the tabloids , took to her Twitter account Friday to defend her sister : . `` I love how haters pick on my sister yet every runway model is just as thin ! My sister is gorgeous and I 'm so proud of her and her career ! ! ! ! '' CNN 's Jack Hannah contributed to this report .
Publicist : Lindsay Lohan 's sister `` has never had any type of plastic surgery in her life '' Apparent changes in her face raised questions online . A normal growth spurt `` changed the composure of her face , '' the publicist says .