So the little smasher – the couple's second child - was in his element when HELLO! caught up with the family at his christening.
"We're big on family parties and will find any excuse to get everyone together," the 23-year-old singer, who is also mother to Ruby, nearly two, told the magazine.
This week's issue, number 1088, contains 22 pages of fabulous colour photos of the special event, from the intimate church ceremony conducted by Charlotte's local priest to an evening karaoke party at their Welsh farmhouse.
The young parents also granted HELLO! an exclusive interview just before they welcomed 100 family members and friends to the do.
In the chat they reveal the Crazy Chick star's formula for getting into such glowing post-baby shape, how they chose Dexter's godparents, their hopes for more children and all the latest on their wedding plans.
Read the full story in this week's copy of HELLO!, on sale from Tuesday.