Lindsay Lohan has a new half-sister to get to know. Her father Michael Lohan is stepping up to take parental responsibility for a child he had 17 years ago, but he's doing so publicly of course. OK! GALLERY: LINDSAY LOHAN DRESSES UP FOR FASHION WEEK IN NYC WITH HER MOM DINA He had an affair in 1995 with a woman named Kristi Horn who later had a child, Ashley, and for a long time she tried to get Michael to pay child support, but he refused, the Read More >>