Penn Badgley and Zoe Kravitz seemed to be more than friends at the “Friends With Benefits” party Monday night. They arrived separately at the Standard Hotel for the Cinema Society bash, but “Gossip Girl” star Badgley later wandered over to Lenny Kravitz‘s daughter. The two seemed casual at the Axe-sponsored bash attended by the stars of the film — about friends who decide to have sex without emotional ties — Justin Timberlake, Mila Kunis and Emma Stone, as well as Kirsten Dunst, Liv Tyler and Anna Faris. But we spotted Penn and Zoe hop into a taxi together at about 1:30 a.m. His rep said, “They just shared a cab.”