Gossip Girl star Leighton Meester has had it with her mom.
The actress has filed a petition with Los Angeles Superior Court asking a judge to throw out Constance Meester's lawsuit - for $3 million, citing breach of contract - as a "matter of law" on the grounds that the allegations are frivolous.
This is one ugly mother-daughter relationship. Why?
Leighton's lawyers say her mom is suing over "a non-existent ‘management agreement;" "an alleged ‘support agreement" and "an alleged settlement agreement."
The very notion that the star had an oral contract to pay her mother $10,000 a month for life is ridiculous, they say, and the fact that Leighton has been giving her money up until now - $7,500 a month in fact - means nothing.
"None of these agreements are valid or enforceable as a matter of law," the filing states.The 25-year-old actress sued her mom in July in order to have a judge declare that there never was any oral agreement and was promptly sued back.
Leighton says she voluntarily gave Constance $7,500 a month to provide medical care for her younger brother, Lex, who had brain surgery last May.
She says Constance used the cash for, among other things, procedures including "plastic surgery on her face and stomach, Botox and hair extensions."
Leighton has even considered trying to get custody of her brother.
Her lawsuit asserts that the elder Meester is essentially a freeloader who refuses to work, instead opting to live off the generosity of her daughter.
Constance does have a criminal past, having been in federal prison for her role in a drug smuggling ring (during which time she gave birth to Leighton).
A hearing on the matter is scheduled for October 5.