Britney Spears with her boyfriend Jason Trawick arrived at JFK airport in New York City, December 19, 2009. [CFP]

Britney Spears' boyfriend Jason Trawick has reportedly met with her ex-husband to ask about proposing.

Jason is alleged to have set up a meeting with Kevin Federline - who has sons Sean Preston, four, and Jayden James, three, with Britney - to seek his approval.

The meeting between the pair is said to have gone well with the pair embracing in a hug at the end of the meeting.

The source added: "Kevin couldn't be happier, he trusts Jason. The guys agreed to be in close touch - and Britney's thrilled knowing she's now one step closer to her goal of marrying Jason and living happily ever after."

Britney has reportedly already made two proposals to talent agent Jason, but he has turned them down.