The Gossip Girl star is suing her mother for spending money that was intended for her brother's medication on cosmetic procedures.

The actress has reportedly filed a lawsuit against her mother, Constance Meester, for using the cash she had sent to her younger brother and sister. The “Monte Carlo” star claims her mother used the money for plastic surgery, hair extensions and Botox injections.

According to TMZ, Leighton was sending her mother $7,500 a month so she could provide care for her younger brother Lex, who suffers from severe medical issues. But Constance, who gave birth to Leighton while serving time in Fort Worth Prison, Texas, for her role in a drug smuggling ring, was spending the cash for expensive cosmetic procedures.

Constance reportedly threatened her daughter that’s she will file a $3 million law suit against the Gossip Girl star because they have an oral contract guaranteeing Leighton would pay her mother $10,000 a month.

The actress denied that she had a verbal contract with her mother. Leighton also claimed her mother was her “inspiration” on becoming an actress.

“My mother Connie inspires me. She’s an amazing woman. When I was a kid I wanted to be an actress and she completely backed me. She is her own person, very eccentric, very individual,” she said.