Who's The Hotter Star Sibling?
From the sexy Simpson sisters to the hunky Hemsworth brothers, Hollywood is teeming with gorgeous celebrity siblings.
It begs the question: which star shines brighter? Is Kate Mara more desirable than her little sister Rooney? Does Drew Lachey have an edge over his older brother Nick?
Though most celebrity families appear to be tight-knit, that doesn't mean there isn't a "healthy competition" between most siblings. Case in point: Kate and Pippa Middleton.
"Certainly when it comes to looks, like who is the slimmest or better looking, there is a little friendly rivalry," royal watcher Katie Nicholl told Us Weekly in 2011.
Other famous celebrity siblings include Beyonce and Solange Knowles; Owen and Luke Wilson; Emily and Zooey Deschanel; Nick and Joe Jonas; and Paris and Nicky Hilton.
Who do you think is the hotter star sibling? Check out Us Weekly's gallery and cast your vote now.
Jessica Alba flaunts her bikini body and shares photos from her work trip to Thailand on today's Celebs Gone Social.Watch Video »
Demi Lovato snuggles with Wilmer Valderrama on today's Celebs Gone Social.Watch Video »
Eddie Is Red Hot
Here are 5 things you may not know about Eddie Redmayne.Watch Video »
Taylor's Cute Cat
Taylor Swift shares an adorable video of her new kitten taking a catnap on today's Celebs Gone Social.Watch Video »
Check out some of Rihanna's wackiest outfits she's been sporting lately.Watch Video »
Khloe Kardashian rings in her 30th birthday with her family -- and her new boyfriend! -- on today's Celebs Gone Social.Watch Video »