Blake Lively’s Halloween Costume: Flight Attendant!

Gossip Girl couple Blake Lively and Penn Badgley celebrate the “Svedka Vodka Adult Playground Event Series” at NYC hotspot 1Oak on Saturday (October 31).

Blake, 22, was dressed up as a sexy flight attendant and was seen posing with one of the club’s owners, Scott Sartiano, who dressed up as Indiana Jones.

Penn arrived with Blake hand-in-hand and celebrated his 23rd birthday during the Halloween party (they arrived after midnight). In the VIP section of the club, Penn was given a Svedka birthday cake with girlfriend Blake cheering alongside him. When asked what he was dressed up as, Penn told JustJared.com, “I don’t know! I’m a half-assed someone. It was a really last minute costume.” (He wore an afro, an athletic headband and a fake handlebar mustache. His t-shirt also reads “Rope a Dope.”)

Happy birthday, Penn!!!