Arena (The Oviposition Chronicles) by Paragonas Vaunt

 
($5.99, part of an anthology) This short, first in this anthology, must be the longest considering it's a third of the entire anthology. A medieval servant is (nearly) fucked by a dude, and gets sentenced to get publicly fucked by an alien for her lord's entertainment. [Universal Purchase Link]

HARD dubcon. Which I expected it to be by the blurb, but I read it anyway despite disliking dubcon. It's well-written and honestly I still read it despite it making me super uncomfy because I'd gotten attached to this plotline and the sex is important to the plotline. In fact, this story is like, 95% sex by volume. I probably won't be reading the rest because wow am I a fragile man when it comes to dubcon, but I don't exactly regret reading this, and again, it's really well-written and drafted- Paragonas Vaunt is quite the wordsmith!