May I suggest a Hobbit fan fic today? It’s Non-con, dark and I’m adoring it. It’s a WIP but It’s a twist on the Thorin/Bilbo pairing.
In an alternate reality, Erebor was never taken by Smaug, and the War of Dwarves and Orcs never happened. The Orcs invaded the Shire, slaughtering hundreds and taking countless more as slaves. Bilbo is slave to Azog, the Dwarf King’s mortal enemy… until the Dwarf King rescues him.