Lohan was enjoying her holidays on a yacht on the coast of the Caribbean island of St. Barts with her 16-year-old sister Aliana. But the vacation took an ugly turn after she confronted a man who got too close to her sister during a night out, reports dailystar.co.uk. "Lindsay repeatedly warned the guy to leave Ali alone. When he didn't, she viciously punched him. Bodyguards arrived quickly to stop the fight and Ali returned to the boat," said a source.
