Old habits die hard. Lindsay Lohan is planning to convert to Judaism so she can marry on-again/off-again girlfriend Samantha Ronson.

The pair separated after a messy split — that left The Ronsons seeking a restraining order — in March, but blabbing spies connected to The National Enquirer claim they have secretly reunited and LiLo is prepared to abandon her Catholic roots for Jewish Sam and her disapproving family.

The source tells the tabloid, “Lindsay says Sam’s promised she’ll persuade her family to accept this, and they won’t wait to see if California changes their gay marriage legislation, but will travel to one of the states where it is legal to say their I do’s.”