<p><span></span>Considering<strong> Lindsay Lohan</strong>'s history with drugs and alcohol -- including arrests for drunk driving and cocaine possession, along with multiple stints in rehab -- the last place the star should be hanging out is a bar. But what made her 11:30 p.m. outing to LA's Crown Bar on Sept. 4 especially shocking was Lindsay's companion: her 15-year-old sister, Ali. "I couldn't believe Ali was there," one guest tells <em>Life & Style</em>. "They partied until after 1 a.m., and she treated Ali as if she were just one of her friends at the club with her. And Ali was excited to be there. She loved being out on the scene with her sister. It was as if she knew she belonged there." </p>
The girls' father, Michael Lohan, thinks Ali's strong enough to resist temptation. "I'm glad Lindsay and Ali remain so close," he tells Life & Style. "However, they're independent people and are capable of making their own decisions."
But Ali's already in dangerous territory. Near the end of last year, she stopped going to school, and Lindsay took her in. "Ali is enrolled in a homeschool program," mom Dina tells Life & Style. Now, despite an eight-year age difference, the sisters are like twins, dressing alike, looking shockingly skinny and sporting plumped-up lips. "Anything Lindsay does, Ali wants to do," a family insider says. Ali's also witness to the chaos of Lindsay's romance with Samantha Ronson. Early in the morning of Sept. 12, the couple had one of their regular blowouts and split up yet again, says the family insider.
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