Blake Lively and Her Sister Robyn Step Out Arm in Arm in NYC

Blake Lively stepped out looking ready for Fall in a gray Peuterey coat with her older sister Robyn in NYC on Monday. The two were all smiles while leaving their hotel arm in arm; Robyn is best known for starring in 1989's Teen Witch, and we strongly recommend rewatching the cult classic ahead of Halloween. It's likely been an emotional few weeks for Blake, who made the decision to shut down her lifestyle site, Preserve, after just a year. Her pal Martha Stewart weighed in on the news recently, saying, "Sometimes shuttering is good. Listen, she's a movie actress. Why bother with commerce right now?" adding, "I'm totally supportive, but you know what? Maybe you can't do everything at the same time."

Despite the career setback, Blake is keeping her head high and returning to her day job. She's been spotted on the set in '20s-era garb while filming an untitled Woody Allen movie with Kristen Stewart and Jesse Eisenberg this month, and she also stepped out to celebrate a friend's recent book launch. The next big day on Blake's calendar? Her husband, Ryan Reynolds, is turning 39 on Oct. 23, and we're sure she'll have some fun event (or at least a few sweet treats) planned to help him ring in the exciting date. Scroll through for Blake and Robyn's sweet pictures, then check out more celebrity siblings you may not have known about.