(CNN) —  

It looks like Lindsay Lohan is about to be a big sister once again.

CNN's confirmed that former "Star" magazine reporter Kate Major is expecting a child with Lindsay's father, Michael Lohan.

The expectant parents, who were once engaged, have a rocky history. Back in 2010, Major accused her then-fiancé Lohan of harassment. Now, of course, the on-again, off-again couple will be forever linked.

TMZ cites anonymous sources who say that Michael Lohan hasn't told daughter Lindsay or his other children about their impending new brother or sister, but we're guessing LiLo's aware of this news by now.

Lindsay Lohan, 26, has three other siblings: Michael, 25, Ali, 18, and Cody, 16.

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CNN's Carolyn Sung contributed to this report.

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