Lindsay Lohan's alleged half-sister wants to meet her famous siblings, but is snubbing the man who could be her father.

Thirteen-year-old Ashley Kaufmann's mother Kristi claims the teenager was conceived during an affair she had with Michael Lohan in 1995 - while he was separated from ex-wife, Lindsay Lohan's mother Dina.

Michael Lohan has undergone tests to discover if he is the girl's father, but Ashley insists she wants nothing to do with him.

She tells TV show The Insider, "I would love to meet my siblings, I'd love that, but not with him."

"It's just weird knowing I have brothers and sisters who don't even know that I exist."