The couple were first spotted together earlier this past year. Tom, whose most popular role was in Pirate Radio, is best friends with Twilight heartthrob Robert Pattinson. Could RPattz be the godfather? We hope so!
Tom is also starring alongside Rob’s girlfriend Kristen Stewartin On the Road as Carlo Marx, hitting theaters sometime in 2012. New baby and a new movie, Tom is already having the best year ever and we’re only a week into it!
As we all know, this isn’t the first actor Sienna has been romantically connected with, but this is her first child. Prior to Tom, the Factory Girl actress datedJude Law (twice), Notting Hill star Rhys Ifans and Brothers & Sisters actor Balthazar Getty.