Lindsay Lohan defends younger sister

Lindsay Lohan has claimed that her younger sister is too sensible to get involved in the Hollywood party scene.

Lohan explained that 15-year-old Ali, who has recently been spotted at showbiz parties, won't make the same mistakes that she did.

"She's tougher than I am," she told Life & Style. "She has a good head on her shoulders.

"Maybe it was different for me because I didn't know what to expect and it just happened really fast. I didn't have a big sister.

"She's really good. If I'm going out late, she'll go home early."

Lohan's brother Michael recently landed his first major film role.