Argh, can't find a story back anymore :)

[Jern]

I once read a story here that involved a son listening in on his parents doing all kinds of freaky stuff and where in the end he discovered his sister was also listening in - and well, you guess it, they ended up having sex. The strange thing is, I can't seem to find it anymore, I've looked through the entire Incest section but no luck. I did find a story called "Strange Noises" which is more or less about the same thing, but it's much shorter...

Anybody happen to remember it and know where to find it? I'd be very grateful...