Actress Lindsay Lohan attends the Clive Davis Pre-Grammy Party in Beverly Hills, California in this February 9, 2008 file photo. Lohan passed up a role in a movie about convicted killer Charles Manson in order to accept two other offers, including a guest star turn on the TV comedy "Ugly Betty," her publicist said on Friday. [Agencies]

Michael Lohan is having a DNA test to determine if he is the father of a 13-year-old girl. Lindsay Lohan's dad is alleged to have had a year-long romance with Kristi Kaufmann, who claims he fathered her daughter Ashley while he was estranged from Lindsay's mom Dina. She said: "We were in love.

One morning, he told me to pack my things - we were going to run off together. I waited, but he never showed up." However, Michael has denied he is Ashley's dad and took a paternity test on Monday morning in a bid to clear his name.He told the New York Daily News newspaper: "I'll have the result within two weeks, and I'll clear this matter up. Kristi makes this claim of a year-long love affair, which is totally false. If the DNA results are negative, we plan on filing a defamation suit." Michael has four children with ex-wife Dina Lohan - Lindsay, Michael, Ali and Cody.