Elizabeth Olsen Has A Favorite Twin! Watch To See If It's Mary-Kate Or Ashley HERE!

At least she’s keeping it real!
It’s a total faux pas to pick a fave sibling, but Elizabeth Olsen evidently couldn’t help herself when she was asked to picked between Olsen Twins Mary-Kate and Ashley on Watch What Happens Live!
So which big sis would Elizabeth rather hang out with??!
Her answer might surprise you!
Find out…AFTER THE JUMP!!!

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