Lynne Cheney's 1981 novel, "Sisters" (out of print and carrying "an asking price of $2,999.95 to $25,000"), features such thrilling plot devices as...

"...fornication (the heroine with her late sister's husband), incest (half brother knocks up half sister), adultery (the heroine, with her first husband's friend), contraception (by the wed and the unwed) and lesbian couplings (the heroine's sister and an older woman). And incidentally, lynchings, dogicide, cattle theft and robber-baronism."