Lindsay Lohan says it’s absolutely OK to party with 15-year-old sister Ali Lohan. While many critics have dismissed 23-year-old (going on 40) Lindsay and her teenage sister hitting the L.A. club scene, Lindsay says Ali is way smarter than she was at that age and can “handle it.”

more Lindsay and Ali after the hop…

LiLo told the most recent issue of Life and Style (via Eonline.com):

“She tougher than I am,” Linds 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.”

Ali is also the responsible one, too. She’s ready to pack it up and call it an evening before her more mature and wise sister.

“She’s really good about that,” Lindsay says. ”If I’m going out late, she’ll go home early.”

Famous last words. Famous last words.

Photos: Bauer Griffin