Did Britney and the Boys Spend New Year's With Adnan?

Are things really that serious between them?

OK! claims that the new couple spent the holiday with Sean and Jayden on a "private beachfront residence" in Dana Point!

But hopefully things aren't getting too serious, cuz, according to the mag, not only is Adnan a married man, but a source claims that in the past he's acted the gentleman only to get better shots of her!