You know, I'd never thought of Dwellers as being explicitly fanfic-y before, but it really is, inasmuch as the plot is basically an energetically handwavy excuse to get to all the h/c and sex--the kidnapping that drives the novel seems to operate along the lines of "Hey, what if we go to some effort to make off with these important hostages and then do absolutely nothing with them while they get killed and/or emotionally tortured by their guards? Awesome, right?" This is not to say that it's a bad book, just that the author's focus is clearly on the character porn.