ALTOONA, PA—Over the course of a five-hour party Saturday, 315-pound Gene Cooper was introduced to 288-pound Cynthia Lerman nine times. "Once or twice an hour, someone would come over to tell me that there's someone at the party they think I'd really like," Cooper said. According to partygoers, Lerman is a real sweet gal, and she and Cooper would probably find they have a lot in common.