Now that's harsh. Gossip Girl star Leighton Meester is suing her own mom. Meester, who plays snarky Blair, says she gave her mom money for medicine and treatments for little brother Lex, who suffers from major medical issues, reports TMZ. But her mother used it instead for plastic surgery, Botox, and hair extensions, the suit claims. Seems like there might have been plenty to go around: Meester was sending $7,500 a month. But her mom says her daughter agreed to pay her $10,000 a month for life—which Meester denies. Check out other celebs with parent trouble. (More Gossip Girl stories.)