Judging by a rare picture of Jennifer Lopez tucking into a slice of pizza, the actress and singer who has won back her pre-twins figure isn’t quite living a life of complete deprivation.

The singer and actress took a break from a photoshoot in the U.S. to hungrily feast on a slice of pizza, topped with peppers.

Pizza the action: Jennifer Lopez was spotted digging into a pizza on a photoshoot in the U.S. dressed in a very revealing LBD

Tucking into the snack with the relish, the actress who took up the sport of triathlon to help her shed her post-pregnancy blubber clearly has an healthy attitude to her diet, enjoying a little of what she fancies.

The 40-year-old mother of twins Max and Emme looked back to her curvy best in a plunging Herve Leger LBD and swept hair.

Jennifer teamed her look with a pair of booted heels and silver jewellery.

Meanwhile it has emerged that the star is extremely competitive with husband Marc Anthony – when it comes to changing their toddlers’ nappies.

Nice slice: She teamed her look with a pair of boot heels and silver jewellery

Lopez at the This Is It premiere in Los Angeles earlier this month

J-Lo gave birth to twins Emme and Maximilian last February, but were seen getting competitive ‘Jennifer and Marc got into an argument over who could change diapers [nappies] the fastest,’ a source told U.S. website Showbiz Spy.

‘When the twins’ nappies need changing at the same time at home, Jennifer takes Emma, Marc grabs Max and they have timed challenges.

‘When they had a changing race in their box at the football game, Jennifer totally beat Marc!’ Lopez – who stars in upcoming movie The Backup Plan – recently revealed how motherhood has given her a ‘whole new perspective’ when it comes to film roles.

She said that it’s easier to get into the role of a mother after having children herself.

‘Yeah, definitely,’ she said. ‘I’d done it before, I’ve had children in movies. But now I have a whole new perspective.

‘It’s so totally different than you could ever imagine – what you feel and how it changes you, and how you see things.

‘So yeah, absolutely.’