Around 6-10 years ago, The Onion was making a wide variety of comedy material online and even for television (they had a show on, I believe, IFC). I did watch a great deal of this at the time, but still, I feel like I took it for granted now that the material has pretty much stopped (the only new Onion video material I see and enjoy are their film reviews).
Sex House was one of those shows - a 10-part web series looking at a group of people who...move into a house to have sex. You have the hot but dumb jock, the sweetheart, the raunchy "trysexual" lady, the virgin, the token middle-aged man, and another guy who manages to be the token black guy AND the token gay guy.
If you've watched any reality TV over the years, especially Big Brother, you're probably nodding your head as you look over the stereotypes.
It's easy to say oh, this is a parody of Big Brother, or the Real World (which one of the producers of Sex House actually worked on), or of reality TV, or of modern depraved culture.
Sex House probably IS a parody of those things and more, but it's also a wonderfully acted and written work. I don't even really want to go into too many details about it as to not spoil the experience for you. All I can say is try to catch the show while the videos are still up, as The Onion seems to be far past its best days.