People magazine's new Sexiest Man Alive Chris Hemsworth and his model/actress wife Elsa Pataky have added to their growing family by adopting a cute puppy.

Fast Five star Pataky announced the news on Instagram on Monday (24Nov14), posting a photo the adorable pet alongside the caption: "Our new family member".

The couple became parents to twins Tristan and Sasha earlier this year (14), but it is believed the pup is an early Christmas gift for their two-year-old daughter India Rose.