I don’t much promote my stories because I’m into really weird things, but I think I’ve had some success with some straight-up PWP suggested by another poster here.
Author: Keith
Title: The Las Vegas Trip
Summary: A guy has a bad breakup right before a romantic vacation. He goes anyway and finds a beautiful woman being ignored by her husband who’s at the tables. They find something to do with their free time. Mostly sex, and some more sex.
Feedback: Comments would be lovely.
Fandom: Original
Pairing: Our hero, the ignored wife (not his) and eventually her sister
Warnings: 3Plus ChallengeFic MF Oral Toys (and, um, no shrinking, giants, aliens, not-quite- or not-entirely-human characters, no magic, no shape shifting, no one taken back to the home planet as a pet/sex toy...)
Ten chapters.
Located: http://original.adult-fanfiction.org/story.php?no=600108456