The 49-year-old star has reportedly begun filing paperwork to adopt another child to give her three-year-old son Louis, whom she adopted in 2010, a sibling to grow up with, reported Contactmusic.
"Being a mum means more to her than anything - her Oscar, her career, her fame, her fortune. She was born to be a mum. She has a son and soon she may have a daughter," a source said.
The 'Gravity' actress' first adoption took four years to complete and much like that experience, friends close to Bullock insist she isn't looking for special treatment despite her worldwide fame.