Try my story for Writing Prompts #56 "Sweet Love Story?"
https://www.webnovel.com/book/13062117106581605/A-Succubus'-Blasphemy
Hell, for all that it aims to create chaos in the the human world, requires its own inhabitants to at least possess a semblance of order. To avoid disastrous events that would thin out its ranks, laws are put into place that govern every demonic being.
The succubus Hyacinth Thermise, accused of Fraternisation with a Human in the First Degree, now must plead her case before the Demonic Court and explain how she came to fall in love with a human male shut-in.
~oOo~
Lots of sweet fluff. Happy End. (But really, the contest is SWEET LOVE STORY. I doubt anyone is surprised)
Warning for noncon and somnophilia (she's a SUCCUBUS, people)
Also, aborted rape: Tries to continue even when the other says 'no' but actually backs off at the realization that the other really does mean it.
Also, actual sex scenes. A lot of them. Rated 18+ for a reason, folks.