ET Exclusive: Lindsay's Secret Sister, The Letters!

Yesterday, we brought you an exclusive interview with Ashley Kaufmann, whose mother claims she is actress Lindsay Lohan's secret half-sister. Tonight, Ashley reveals the letters signed "Love, Daddy," and the broken promises the man she claims is their dad, Michael Lohan, made to her as she was growing up!

"He's always hurt me," she says through tears. "It's been throughout my life."

Ashley's mother, Kristi, says that the 13-year-old is the offspring of a three- to four-week affair she had with Michael in 1994. 

• Meet 'CSI''s Hot New Crime Scene Investigator Oct 07
• David Duchovny Out of Sex Rehab Oct 07
• Angelina Jolie Plus Three in the Big Easy Oct 07
• Valerie Bertinelli Seeks 'Boston Legal' Advice & Talks Weight Loss Oct 07

• Celebitchy Kim Kardashian desperate to rejoin DWTS' afternoon links Oct 07
• X17 Online Lindsay And Sam Eat Out Oct 07
• TMZ But What Does This Mean in Lebanese? Oct 07
• Hollywoodtuna Canned Tuna Oct 07
• Bricks and Stones Should This Be Allowed? Oct 07
• Sky Showbiz Sam: "Sick" Linds Chat Oct 07
• LaineyGossip Pale, skinny, and bored Oct 07
• POPSUGAR Lindsay and Samantha Are Back in Sweet Step Oct 07