Any Good Novels ?

We are going on vacation and my wife has told me to find her a nice erotic novel to read (not short stories) I'd like to find her one of course with a cuckold theme. Anyone know of a good one we can get off amazon for kindle ? interracial is a plus and I would like the title to not give it away. Not looking for a in your face fuck a thon but something that builds-up with a good romantic story and than some steamy stuff. Thanks