The singer at a gig, earlier this year
"She wants to do Playboy. This is something she wanted to do even before she got pregnant. Christina's always loved her body," said a source.
The Voice US mentor, who lost 20 pounds last year after going on a strict diet and fitness regime, is said to have hired a nutritionist to help her maintain a healthy weight throughout her pregnancy and plans to get back to her pre-baby weight before agreeing to bare all in the magazine.
"It won't be too hard. She even hired a nutritionist. She's determined to do this. Christina is planning to show off her assets," said a source.