Looks like Gossip Girl's Ed Westwick and Jessica Szohr are taking page from lovey-dovey costars Blake Lively and Penn Badgely, and are smooching when the cameras aren't rolling.

Yup, two different reports caught Ed and Jess in a lip lock, on a trip back to NYC from Dallas.

W Magazine says the costars were kissing "definitely on the lips. Not a French kiss, but a smooch definitely. They were being very flirty when people were not paying attention," while the New York Post claims the new twosome were "trying to be discreet by stealing kisses near the gate."

Once on board, the paper says that Ed and Jessica "were kissing in the aisles, but once they sat, she read her script and he drank a Heineken."

Love is definitely in the air on that set -- what do you think of this new couple?