The late sixties were a tough and tender time when many an over-sexed girl literally put her ass on the line in order to maintain her vaginal virginity. The idea of backing into the sex act while keeping up a good front is the stuff that bestsellers are made of. So Chris, a sensuous and successful author, with encouragement from her lover Harry, decides to document a book to be called "The Bottom Line," by bringing some of the old gang together for a hot weekend of raw reflections. Getting together are Vin, a businessman who has lost his sexually adventurous nature, his wife Britt, who longs for excitement and B.R., a lady with a preference for the softer things in life but who can handle the harder facts of lust. Rounding out the group are Britt's brother Chico and B.R.'s playmate, Lee. While the amorous younger generation is carnally cavorting in their own time zone, the older folks are blissfully reassessing their sexual associations, only to discover that not all they remember really did go down or up the way it seemed.