Why Is Blake Lively Famous? 5 Weird Fan Questions Answered by Wetpaint Entertainment 2 of 7 Prev Autoplay Next Share Tweet April 27, 2012 by Semhar Debessai Related: Gossip Girl, Gossip, Relationships, Blake Lively full size Credit: Jen Lowery/Getty Images; Anna Gregg/Splash News Does Blake Lively Have a Twin? Blake does not have a twin. However, she does have an older brother — Eric Lively, also a working actor — and two half sisters. In fact, Blake took all of her siblings, and her mother, Elaine, as her dates to the premiere of last summer’s Green Lantern (co-starring her now-BF Ryan Reynolds).