Kylie & Kendall Jenner to Pippa Middleton: Kid Sisters Having Best Year Ever! (PHOTOS)

Kendall and Kylie Pics!
The Jenner girls through the years!
Sister Style Showdown!
Who wore the Birkin better?
The year is coming to a close, and looking back, we realize that 2011 was the year of the celebrity kid sisters! Whether they were involved in scandal or showing off their talent, we could hardly go through a day this year without hearing about a pair of celeb sisters – and we loved it!

Lindsay Lohan stayed in the headlines all year, thanks to her court-ordered house arrest  and her recent stint with Playboy, and her younger sister Ali, 18, has been swarmed with plastic surgery rumors (that she, of course denies).

Thanks to her fairytale Royal Wedding to Prince William, Kate Middleton became one of the most envied women in the world, and her socialite sister Pippa, 28, has transformed into quite the fashion icon herself!

On the big screen, the Fanning sisters are continuing to take Hollywood by storm, with Elle, 13, starring in Super 8 and We Bought a Zoo, while her older sis Dakota filmed the final installments of the Twilight series, The Twilight Saga: Breaking Dawn!

Elizabeth Olsen, 22, is becoming as big of a celebrity as her sisters Mary-Kate and Ashley; she was nominated for Best Breakthrough Actor at the 21st annual Gotham Independent Film Awards for her role in Martha Marcy May Marlene!

And it’s also been a great year for Kylie, 14, and Kendall Jenner, 16,  – they were picked as Seventeen Magazine’s Style Stars for 2011 and proved they may have a future as celebrity correspondents – check them out interviewing the cast of Glee!

Who are your favorite celebrity kid sisters? The Lohans, the Middletons, the Fannings, the Olsens or the Jenners? Be sure to check out the gallery and let us know in the comments below!