It wasn't bad, but I see some wasted potential here. This needs to be longer and darker, with more buildup to the sex scene and more drama afterwards (also, she most definitely shouldn't enjoy being raped. This should generally be handled carefully, especially if you're aiming for drama/dark story). The sex scene is rather bland, I'm afraid (personally, I'd write it in a deliberately unsexy and squicky way to make it grittier, but that's just me) and that surprise incest mention kinda is there, but doesn't really do anything. Like, it could work fine as a part of Filthy's trash-talking, but once it turns out she did fuck her brother, it kinda goes in a weird direction.

Wonder how Sci-TwiSet started their sex life?

Hope you don't mind that I did a voiced reading of this! :D

Glad to see this has a happy ending.

7673401 Wait, their siblings?! Well, there goes my idea for a romance story

8098913
You may still write it. There are a lot of people who'd find it kinky.

8099166 Well it's not sexual if that's what you thought. Although to be fair, I didn't explain it so I can see why. Hmm... I'll have to think about this.