Megan Fox worked out throughout her entire pregnancy.
The 'Friends With Kids' actress - who gave birth to her first child, Noah, with husband Brian Austin Greene in September - only gained 23 pounds while expecting by keeping her exercise routine consistent.
Megan Fox says her stepson is ''indifferent'' to her new baby boy.
The 'This Is 40' star - who gave birth to her first child Noah in September - has revealed her husband Brian Austin Green's 10-year-old son Kassius, from his previous relationship with actress Vanessa Marcil - is not particularly excited about their new arrival because he is too busy playing computer games.
Megan Fox is worried her son will be ''horrified'' when he sees her old bikini shoots.
The 26-year-old actress gave birth to Noah - her first child with husband Brian Austin Green - in September and revealed becoming a mother has changed her approach to her work because she is mindful of how it could affect him when he is older.