Britney Spears and husband Kevin Federline are attempting to fix their troubled marriage - by ten-pin bowling together.The young couple - who have a baby boy, Sean Preston, together - were spotted laughing and playing at their local Los Angeles bowling alley.Britney was overheard saying: "Bowling allows us to curse at each other in a good way."It was recommended as therapy - a way to have something fun to do together."The pop babe and her husband have reportedly had marriage problems since the birth of their son late last year - due to Kevin's excessive partying.Earlier this month, Kevin wants to open a nightclub.He is planning to launch the venue in Las Vegas in case his pop career doesn't take off.

A source said: "The last place Britney wants Kevin to be spending his nights is in a nightclub, even if he's the owner. But he thinks it will be a gold mine and that he'll make millions."

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