Michael Lohan has admitted a fling with the teenage girl’s 44-year-old Montana massage therapist mom, Kristi Kaufmann.

It happened in 1995, when he was separated from Lindsay's mom, Dina Lohan.He reportedly took a paternity test in July. Yeah, should be about time to get those results back ...

"My father just let my family and [me] know, amongst other [things] that he had another child after my little sister Aliana," Lohan, 22, writes in a post titled "Random Thoughts." "Or maybe he had it before Aliana?? Either way, he cheated on my mother and that really sucks."

But her dad, Michael, strongly denies his daughter's claim to People. He also said there’s a "99 percent chance" Lohan's MySpace message was actually written by her girlfriend, Samantha Ronson. How Long Have Samantha and Lindsay Been Dating?

Noting on MySpace that she's "going through a lot right now," Lindsay sounds introspective in her post."I think that people go through a lot in life," she writes. "And the things that we go through, whatever they may be, simply just make us stronger in the long run.

That is, if we actually take what it is we have learned from our mistakes and teach ourselves what NOT to do in the future."Michael may be right. If Lindsay had written this, wouldn’t it have been filled with spelling and grammatical errors, as her posts usually are? Or has she figured out SpellCheck?