Scarlett Johansson may have a new boyfriend, but she's not ready to step out in public with him ... yet.
The gorgeous "Avengers" star was spotted heading to Barack Obama benefit "Runway to Win" last night in New York City with a hot guy on her arm -- but that looker is her twin brother, Hunter!
The event was a Who's Who of fashion stars and fashionistas, with appearances from Anna Wintour, Diane von Furstenberg, Chanel Iman, Karlie Kloss, Karolina Kurkova and more.
The show featured clothes famed designers made in support of Obama for 2012, check out and purchase the designs here.
See the gallery above for more celeb siblings!
