Wife tells husband she is going to spend weekend with her boss at lake cabin.There will be three couples the boss and prostitute to apease the husband. Wife and husband and another couple to keep the peace.Boss is moving away to London
and wife wants husband to accept it as a one time affair.Husband balks and brings consequences on wife.
There are a bunch of stories on the same theme, but the one the OP is looking for is not Hooked1957.
The one he is looking for concerns a husband who had suspicions for a long time that his wife was cheating with the boss. Hired PIs to confirm that and they came back and told him they didn't cheat on him.
Then the boss gets a transfer to England. The wife and boss, with the assistance of bosses wife, set up a weekend for the two to finally consumate their love for each other. The deal was one weekend before he moved.
The husband does not go along with the deal.
Unfortunately, I don't remember the author.
ETA: It's FAITHFUL? by Kcfirst and a revised version FAITHFUL? WITH A DIFFERENT ENDING by Sunshineman2019.
