Like I said to californiaquail, if someone put a gun to my head I wouldn't be able to name anyone that's done it (except for the person whose story I read minutes before posting my comment). It's pretty common, though, so you certainly aren't the only one.

Orgy fic, huh? Who, may I ask, is partaking in the orgiastic festivities? Would there be lots of boys, lots of girls, or a little of both?