(TMZ) Lindsay Lohan has ZERO plans to meet her newly-announced 17-year-old half-sister ... in fact, she wants nothing to do with her ... ever.Lindsay is telling friends, she's 100% done with the "circus" that is her father Michael Lohan -- and does NOT want to meet her half-sister Ashley.
TMZ broke the story ... Michael took a DNA test on national TV to determine whether he fathered Ashley back in 1995 with a former mistress -- and the results came back positive.
We're told Lindsay has been aware of the paternity dispute for a while -- since it's been going back and forth for years -- but did not know her father had taken a DNA test until we broke the story.
Lindsay has not communicated with Michael since he leaked the recorded phone call during her fight with Dina last month -- and no longer wants anything involving him in her life, lovechildren included.
Lindsay says she's doing much better now without her father's drama -- and she wants to keep it that way.
We're told Lindsay has no ill feelings toward Ashley -- but finds the entire situation "disgusting" ... especially because Michael had the affair while he was still married to (and having kids with) Dina. more on this story
