Looking For a Specific old story: Jane and her Family

[crotalidian]

A number of years ago I read a story called Jane and her family, it is an incest orgy story, it opens with 2 (unrelated) coworkers driving to the family house and there is an intermission where they watch a movie about a nudist sex camp.

I do not know if it was ever on this site (I don't remember WHERE I read it) but if anyone is familiar and can point me in the direction of it that would be great.