In "Sis on Tape", a brother comes home early due to being sick, and catches his sister having sex with someone she shouldn't be with. Seeing an opportunity to knock her down a peg, he gets his parent's video recorder, and captures his sister in all her glory. Planning to fake blackmailing her, he is mortified when she is emotionally crushed. Read along as they work things out.
This has to be one of my all-time favorites for short stories. I can recall first reading it way back when it was first published on alt.sex.stories.moderated, and then on SoL. I still manage to read it once every couple of months or so.
The sex in the story is hot. The scenes between brother and sister are emotionally charged, and thus all the more erotic.
The plot is great for a short story. Just enough lead-in to make the brother's discovery make sense. Just enough background for you to understand their dislike for one another. Just enough misery on the sister's part to make the outcome make sense. It flows together well, making the whole of the story feel like it really did happen.
Technically, there are a few misspelled words. The story is engaging enough that I always forget that they are there by the time I read it again, and am surprised I didn't remember that the story was flawed in that manner.
If you like short incest stories that have a plot and make sense, "Sis on Tape" makes a wonderful choice for your reading pleasure. And sometime in the next 4-6 months, I will probably be reading it again. That, to me, is one of the best signs of a good story: you can read it over and over and still enjoy it just as much the 10th time as you did the first time.