Ali Lohan, Lindsay Lohan's 17-year-old sister, sported a much altered face when she stepped out with Linsday in Beverly Hills Wednesday, sparking debate over whether she has had plastic surgery. Her lips looked plumper, her nose more refined, completely redesigned eyebrows, and more prominent cheekbones. Usually thin, Ali was looked much thinner.

Ali, who previously modeled for her sister's 6126 fashion line in its Spring/Summer 2011 campaign, signed a multi-year contract with NEXT Model Management last month.

She represents the future face of fashion and will be a photographer's dream with her cameleon-like beauty, NEXT LA Director Alexis Borges told Just Jared.

But her father had something different to say.

It's scary to see my daughter looking like this, her father, Michael Lohan, told Radar Online. Ali was always on the thin side, but seeing how much weight she's lost there appears to be a drastic change that concerns me. This industry has a way of having a harmful effect on one's health and well-being. To see what Lindsay has gone through is one thing, I certainly hope Ali isn't going through the same thing.