I have two requests.

Found! It's below in the comments.
I read this fic awhile ago. It had Jensen whose family was in charge of a kingdom, but another kingdom took over. The family, except for Jensen and his sister, was killed. Jensen and his sister were sold as slaves to Jared who was someone important in his kingdom (don't remember if he was a general, king, or something like that.) The reason Jensen and his sister were left alive was because they were attractive. Jensen became Jared's sex slave with Jared promising that nothing bad would happen to Jensen's sister as long as Jensen behaved. I remember one part that had Jensen contemplating that Jared was totally in charge of him. That if Jared wanted Jensen starving, Jensen would starve. Things like that. The fic was in archiveofourown and was multichapter. In the end Jared was still in charge or Jensen. I'm not sure if Chad and Jensen's sister got together in the fic.

This one is general. I'm looking for J2 slavery fics or Wincest slavery fics.