Lindsay Lohan's Dad Hits Back At Former Mistress

Lindsay Lohan's attention-loving father Michael has hit out at his former mistress, suggesting that he is not the only possible candidate for father of a secret lovechild that she claims is his.

Michael Lohan has admitted to having an affair with Kristi Kaufmann during a period in 1995 when he and his now ex-wife Dina had separated.

But the born-again Christian has denied Kaufmann's allegations the result was her 13-year-old daughter Ashley and has instructed his lawyers to seek the truth of his former mistress' claims.

He has also undergone DNA testing in the hope of proving he is not the father.

Lohan tells Star, "I took the DNA test this morning (30Jun08)... It was important for me to know the truth, so I took the test."

“However, I have some serious doubts after investigating [the mother and his former mistress] Kristi's background."

Lohan expects the results of the paternity tests to reveal his relationship to the teenage girl within two weeks.

He insists he had no idea that his one-time lover had given birth to a child after their romance.

Kaufmann hit him with the bombshell news while he was in prison, serving time for a DUI and other charges in 2005.