I hate Starfighter.
But it's growing on me a little, and a lot of people seem to like it, so I feel obligated to mention it. So. Starfighter. Science fiction yaoi webcomic in which men come in two varieties: super-aggressive assholes and super-intelligent pansies.
Lots of D/S. Some rape? Maybe / sort of? It's difficult to tell if the bottom is consenting or not, and the top makes it pretty clear he doesn't care.
You know how some stories have this top who's intensely dominant? And at first he's an asshole, but then you get to know him better, and it turns out that deep down inside he's secretly this nice guy with a lot of angst. Like Edward Cullen, or Mako from Legend of Korra, or Atros from Teahouse.
This is not that story. This is the story of an asshole, who deep down inside, is an asshole. And I like that.