(via) I think maybe once you get arms as big as Chris Hemsworth's they become like, self-fulfilling - they are so big that he gets a work-out just having them. Having to lift them to even exist. That's what I think! It's science!
There are some shirtless pictures of his also-hot brother Liam over here but his girlfriend whatsherface is impossible to edit out so I won't be posting them. Blurgh to her!