Britney Spears is having some family bonding time with her mom - but the pair have been seen arguing frequently, according to sources.
Lynne Spears, who arrived in Los Angeles Monday, accompanied her 26-year-old daughter and pal Sam Lutfi to a Mercedes dealership in Beverly Hills Tuesday morning - but it wasn't exactly a happy family outing.
"Lynne and Britney were arguing in the car the whole time. They're upset and arguing, not having a good time at all," an onlooker tells People.
After 15 minutes, Britney drove an Escalade off the lot, then "pulled over to the side of the road to argue with her mom more." adds the onlooker.
The previous night, Lynne Spears visited her daughter's home, but then was left pacing around the house as Britney left to meet Adnan Ghalib.
"Lynne Spears, at one point said, 'I just want to give her a hug. I'm very worried," says a source. "Lynne was so nervous and worried, she just kept asking how they could get her daughter back home."
When the pop star returned, Lynne, Britney and several friends including Alli Sims and Sam Lutfi, had a "family bonding session."
But the family time does not seem to have changed Britney's behavior. On Tuesday afternoon, she and Sam Lutfi visited a nearby J. Crew store, where an onlooker described her as "totally out of it."
"She was talking in a slight accent. It was a little bit of a British accent," says the witness. "She kept to herself, quiet, she just wanted to go. She really wanted some gum and she kept asking Sam for it and got frustrated when he didn't have any. Her mood lifted when she found some in her bag."
Time for an intervention, people?