Some pictures of Christina Aguilera at SBE restaurant in Hollywood.

Christina Aguilera and Jordan Bratman are making sure that having a new baby at home isn’t extinguishing the sparks between them. They are so determined to keep their two-year marriage red-hot that they’ve taken to skinny-dipping by moonlight. The couple, who welcomed son Max into the family on January 12th 2008, can be heard loudly frolicking in the pool of their $11.5 million Beverly Hills mansion around midnight.

“They don’t just splash around — they laugh, scream, swear and make sexy noises. We’re happy that they’re happy, but we wish they’d keep it down a bit. There are a lot of old people who live around here, and they don’t like noise after the dinner hour.” says a neighbour.

Still, the 27-year-old pop singer and her record producer husband, 30, are preferable to the house’s former owner, Ozzy Osbourne, who sold the Mediterranean villa after wrapping up his MTV show.

New mum Christina Aguilera says her slimline post-baby figure is down to breastfeeding. Christina who gave birth to son Max Liron, her first baby with husband Jordan Bratman, two months ago insists feeding hungry Max is “like a workout in itself”.

Christina explains her secrets to slimming down “I think they say that when you’re breastfeeding, you know, your weight kind of slims down. It’s a little easier. It’s like a workout within itself. It’s very tiring actually and you find yourself snacking more often.”