"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.
"Just because she's rich and famous doesn't mean that Sandra expected, wanted or got any preferential treatment. That is not her style," a source added.