Actress Sandra Bullock is involved in a custody battle against porn star Janine Lindemulder over her husband Jesse James’ 5 year-old daughter Sunny James (photos below), who has been living with the couple for more than six months since her mother went to jail for tax evasion.

Janine is out and wants her daughter back except both Jesse and Sandra are doing everything they can to keep her bad influence out of the child’s life. The couple wrote letters to ask the judge for a stricter punishment and describing Janine as an unfit parent.

“I am aware that Janine has claimed many times that my desire to have Sunny was because I could not have children of my own,” Bullock writes in the letter obtained by ABC News. “As difficult as that is for me to hear, and write, it couldn’t be farther from the truth.”

“I myself have stopped working like I used to in order to be here with Jesse and the kids because we are on constant ‘high alert,’ ” she writes. “Never knowing what condition Janine will be in, and even more concerning, the condition Sunny will be in. While in Janine’s care, sometimes Sunny is left alone during the day, while her mother is asleep from drug use.”

“I know the term ’stepmother’ carries many connotations, one of them being a ‘glorified babysitter,’ ” Sandra writes. “My commitment and responsibility to Sunny, and Chandler and Jesse Jr., goes beyond that.

“We are FULLY prepared to accept the responsibility and make Sunny’s transition as healthy as possible if full custody should be awarded to Jesse…We are here, and know we may have a tough road ahead of us but we have built a strong and stable foundation, which makes us ready for anything.”

Janine went to ‘Good Morning America’ in hopes to get some publicity and make Sandra sit down and talk to her. Janine said, “It hurts tremendously. The accusations, especially from Sandra…her even more so, because we’ve never sat down and talked. That’s the one thing that I wish more than anything for a remedy for what’s happening here, is just communication.”

Sandra Bullock & Janine Lindemulder Pictures Below