Scarlett Johansson has opened up about how she got back in shape after having her baby.

The Her star gave birth to her daughter Rose back in September, and has clearly already shed any baby weight she may have gained during her pregnancy. And it wasn't down to a strict gym or diet regime (as far as we know, that is), but to breastfeeding.

In an interview with Barbara Walters for an upcoming TV show, Scarlett extolled the benefits of nursing: '[I do] the whole bit. I'm nursing and I love it. It's the best way to get back in shape.'

Speaking about motherhood, Scarlett said: 'It's wonderful. It's very, very magical - and exhausting. The love is just unbelievable. It's very overwhelming.'

And somehow, in between giving birth and looking after a newborn, Scarlett found time to secretly wed her fiance, Romain Dauriac. In fact, the nuptials took place just a month after Rose was born.

Continued below...

No wonder the new mother is a little bit tired...