Britney Spears Blasted by Shar: What Was That ‘Bleep’ Thinking?

Kevin Federline's ex Shar Jackson is speaking out on the Britney Spears scandal where the pop tart was photographed driving in California with her baby on her lap. Jackson minced no words and is quoted as saying, "what was that b***h thinking?"

Shar allows her children around Spears, so if anyone has the right to question the behavior, Jackson would seem to have a legitimate concern for the safety of her children.

The Star reports:

Actress Shar Jackson, Kevin Federline's ex, says she was "horrified" by the photos, an insider tells Star. Jackson, 29, the mother of Kevin's daughter Kori, 3, and his 1-year-old son Kaleb, "couldn't believe her eyes when she saw the pictures," says Star's source. "She said, 'what was that b***h thinking? Is she crazy? What kind of mother is Britney?'"

As for Spears blaming the paparazzi for her impulsive decision to drive with her son propped on her lap with no safety restraints, our source says that Shar isn't buying that excuse. "Kori and Kaleb often stay with Britney and Kevin on weekends and after seeing those pictures, Shar's starting to worry whether Britney is responsible enough to be trusted to take care of her kids."

"She's been trying to get Kevin on the phone and tell him he has to sit Britney down and tell her this should never happen again. If Shar doesn't get that kind of assurance, she is going to think twice before she ever allows Kori and Kaleb to stay with him and Britney again."

It's still not clear if Brit does realize how poor of a choice she made as she told Access Hollywood, "I made a mistake and so it is what it is, I guess."

Brit maintains she was being chased by the paparazzi at the time. "Being put in the situation that I was in, it was kind of bad with the paparazzi," she said in the Access interview. I'm thinking Shar will need a stronger statement than this.