KEY POINTS:
Britney Spears is filing a restraining order against her mother, Lynne.
The troubled singer, who allegedly visited her attorney to make inquiries about the order last week, is said to have completed the paperwork in an attempt to keep Lynne away from her two sons.
Britney claims Lynne is abusing prescription pain medication and should not be allowed to see 21-month-old Sean Preston and nine-month-old Jayden James.
The papers were allegedly due to be filed late on Monday or yesterday, according to website X17Online.
Britney is said to be furious with Lynne for visiting Sean Preston and Jayden James at her estranged husband Kevin Federline's home.
She believes Lynne and Kevin forced her to enter rehab earlier this year to seek help for her alleged alcohol addiction and post-natal depression.
Britney is also said to be livid that her mother sided with Kevin during the couple's custody battle.
Lynne recently claimed her relationship with her daughter was improving, but insisted Britney still had a long way to go before overcoming her problems.
She said: "It's sad that the whole world had to watch her make mistakes that all of us have made at one time or another.
"Britney Jean Spears is the sweetest and the most sensitive and loving of all my children. She is figuring things out."
- BANG! SHOWBIZ
