Britney Spears' new relationship is completely different from her previous one.

The 31-year-old star is currently dating legal researcher David Lucado, 27, and one of the reasons things are going so well between the pair is because of the lack of legal ties between them, unlike with her former fiance Jason Trawick.

"Britney's relationship with David is night and day from her relationship with Jason. Not only was Jason her agent, for a lot of their relationship he was also her conservator. Business was wrapped up in the romance in a really weird, confusing way," a source said.

Britney - who has sons, Sean Preston, seven, and Jayden James, six, from her marriage to Kevin Federline - was set up with the businessman by her father Jamie Spears and the blonde beauty is enjoying the "fun" side of their relationship. "With David it's just all fun, just because they like each other. It must be a breath of fresh air for Brit," the source added.