We reckon that there's some off-set chemistry here!

The Gossip Girl crew were celebrating the May issue of trendy magazine Nylon in New York over the weekend. Both Blake Lively and Leighton Meester (AKA Serena and Blair) are gracing the cover of the mag (one cover each!) so they got their own dinner party thrown as a thank-you (go figure!) 

Everyone looked as hot as they do in show and we reckon there was more than a bit of flirting going on between Blake and Chase Crawford (who plays Nate).

They spent most of the evening talking to each other and there was a lot of eye balling going on.. check out the pics on the next page!