It's Complicated

S1, E4: Dana and Peter continue to enjoy New York and each other, but when they realize they still haven't had sex, both decide tonight's the night following a sexy and swanky dinner at an upscale oyster restaurant. But when the couple finds their reservation is pushed, Dana and Peter head elsewhere, not knowing that their romantic evening is about to go from intimate dinner to disaster. Meanwhile, Amy and David spend an evening babysitting and make a decision that will impact their future forever.