Britney Spears forced to defend her parenting (again)

Britney Spears has again been forced to defend her parenting after leaving her sons holed up with a nanny in their Las Vegas hotel suite while she jetted off to New York to party reports NW Magazine.

Britney Spears's antics have infuriated her parents Lynne and Jamie, who have reportedly held an intervention, urging the 25-year-old to get help before she loses her kids.

Looks like the intervention had no effect. NYDN reports a Wild Night

In the wee hours of Sunday morning, paparazzi caught Spears emerging from her limo with a jacket over her head, stains on her jeans - and a puddle of puke in the back seat after she spent the evening hanging out in Manhattan's Club Tenjune. Spears was out on the town again late Sunday night, showing up at promoter Joey Morrissey's weekly party at One, the Meatpacking District hot spot, with a couple of male friends.

A source told the Daily News she drank shots from a bottle of tequila and ended up naked in the dancers' dressing room, trying on their bikini costumes.

"She was in high spirits," says the source. "[Spears] arrived in a little red dress, but she admired the fishnet [stockings] the dancers were wearing. She went downstairs and tried them on, but didn't like the way they looked with her dress.

"So she took off her dress and started putting on bikinis that the dancers wear," he adds. "She stripped all of her clothes off and was totally naked in the dancers' room. She came out and got a T-shirt off of one of the waiters and danced like that till around 4 a.m."