The concerned family of the already twice-wed singer have approached lawyers about the "very likely" possibility of a wedding because the 26-year-old's recent erratic behavior, including a sudden trip to Mexico on Wednesday.
The trip to Mexico has raised fears over whether the Brit Brit will elope. A source says, "Lawyers are now on red alert in case she does get married. Britney is very unpredictable at the moment. But the feeling is that a wedding is very likely.
"Her family have discussed with lawyers what could be done if she does suddenly fly away and tie the know. They are preparing to argue that she is not in a sound state of mind - that she is strung out on so many prescription drugs that she does not know what she is doing.