Yes, America, there was a Mimi, a teenage cuddle for President John Kennedy back in 1962 and '63. But there was also a Pam, a Priscilla, a Jill (actually, two of them), a Janet, a Kim, a Mary and a Diana I can think of offhand. The Kennedy sex industry will march on. Sharing the sheets with J.F.K. seems to have become a badge of honor — and perhaps a route to publishing riches. But beware of boasting or true confessions: I've never met anybody who was a witness in the bedroom. It is all circumstantial — or was, until...