My aunt used to tell me there were three kinds of sex in a marriage. There was exciting sex, necessary sex, and hallway sex. "Exciting sex is when you're first married and you can't wait to get at each other. Necessary sex is after you've been married for seven or eight years and it's more of a chore than anything else. . . .AND Hallway sex is after you've been married for thirty or forty years and you pass each other in the hallway and say "f**k You!"