Kim Stephan and Kate Peck spent a recent evening in the living room of their cozy home in Philadelphia reminiscing about the night they got engaged. Peck was a smooth operator: She invited Stephan to what she claimed was an exclusive Moby concert at a local concert hall, but there was no concert. Stephan was confused, at first, when she walked into the dark empty room. But then a spotlight clicked on, illuminating Peck, standing on stage dressed in a suit, a bucket of ice chilling a bottle of champagne at her feet. Peck didn’t even have to ask the question. Stephan said yes.