This book is not lesbian erotica. There are no 'hot' scenes. The possible lesbian sexual relationship between two of the characters is probably a 'Boston marriage', as speculated by the most worldly character in this novel. The only sex scene is heterosexual, and it is nothing that will get anyone hot and bothered. Incest and a threesome are part of the plot, but they are not dealt with erotically.
While it certainly would have been delicious for the wife of the (former) Republican Vice President to have written a lesbian romance, Cheney hasn't. The politically interesting point here is that Cheney is more sympathetic to poor homesteaders and Native Americans than to rich cattle barons. Perhaps that would have been embarassing to Dick earlier in his career, but not now.
The novel is a competently written, if lackluster, historical romance set in Wyoming in the late 19th century. Unless you have a real need to collect Wyoming historical fiction, you would be a fool to pay the prices being asked for this book. It is not erotic and it is not politically charged. I'm disturbed that all the bogus reviews on Amazon.com are allowed to remain. If anyone who has written one of them is also selling a copy, they are in violation of Amazon terms of service for sellers.
Cheney would be wise to allow a new edition, to quell all the rumors. Meanwhile, get a copy to read through your library's Inter Library Loan service ( )