Ashley St Clair reveals how Musk approached her, recalls him saying 'You should have 10 kids'. Ashley St Clair, Elon Musk's son Romulus' mother, revealed that Musk approached her by responding to her posts "frequently". "One day, he responded to one of my Mother's Day posts [saying] I should have more children," she said, adding that Musk dubbed himself a "good dad". "We should have a kid...You should have 10 kids," she recalled Musk as.