I'm currently looking for some lines in the Final Fantasy Tactics (a longshot, I know) and Pokemon fandoms, though there are also some generic plots listed. While I like story to blend with any sexual activity, I'll be just as interested in shameless smut wherein, to quote Mark Twain, "Persons attempting to find a motive in this narrative will be prosecuted; persons attempting to find a moral in it will be banished; persons attempting to find a plot in it will be shot."
In any case, if interested, please check my journal and Comment there or here (comments screened in either case). :)