Hellooo Sebastian Theroux. Pictures surfaced recently of Justin Theroux with his seriously attractive younger brother, Sebastian. That brings up the question: Who else has been hiding their hot siblings from us? None of this Dave Franco/Solange Knowles/Elle Fanning nonsense. Which celebrities have brothers or sisters that we could totally be friends with, and then, before you know it, be their date to the Oscars to support their famous sibling?
Which celebrity sibling do you think is the hottest?