Sexiest Man Alive 2013

Twice as Nice! The Sexiest Celebrity Brothers

From Chris and Liam Hemsworth to Princes Harry and William, there's no rivalry when hotness clearly runs in the family

JUSTIN & SEBASTIAN

Though Jennifer Aniston has already laid claim to the eldest Theroux, baby brother Sebastian seems poised to steal the spotlight after causing a stir with his similarly handsome mug and trendy style during a March stroll with Justin in New York.