Among the young "swingers" set, the latest kick is to have a sexual relationship with their parents, providing that the parents are willing to go along with such a relationship, of course. And, statistics seem to indicate that the parents unwilling to be labeled as "old hat" or "obsolete" are more than happy to indulge their offspring. Author John Morison's latest novel, "Young Swingers," pulls no punches in describing the incestual climate that surrounds our young today, and their eagerness to participate in the self-destructive act.