Britney Spears has splashed out on some raunchy lingerie to spice up her marriage.

Following rumours she is going through a rough patch with husband Kevin Federline, the new mum has been spotted going on a saucy shopping spree with her younger sister, Jamie Lynn.

Britney emerged from a Victoria’s Secret store in Thousand Oaks, California with a bag full of sexy underwear.

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Last week, the couple were at the centre of a break-up riddle when sources alleged the pop babe had kicked her husband out of their Malibu home and demanded a trial separation after a blazing row.

Kevin was said to be staying at a friend’s house until he can sort things out with Britney, but friends feared their marriage is heading for the rocks.

A pal revealed to a US magazine at the time: "Brit’s had all she can stand of the problems with Kevin. She explained to him that the split would be temporary, that it would give them some breathing room to sort out their problems. Britney’s giving it her all to make things work."

However, Britney’s spokeswoman, Lesley Sloane Zelnick, insists the couple’s marriage is "fine." Which usually means the man is laying.