Erotic Cuck Story

I recall once reading story about a husband who goes to pick his wife up from the gym. he goes into the back of the gym and sees a group of guys talking about a married women who is about to get fucked by the trainer. The husband sees that the women is his wife and watches as she get fucked. The scene is videotaped and the husband wants a copy. Does anyone know where I can view this story?
matthew renner

try the darkwander site and do a search