Conference Season by Max Sebastian

His wife has realized how to make conferences more fun. She’s going to cheat on him.
Lawrence has always felt guilty that wife Gracie has to attend so many conferences for her job, marketing for a consultancy firm.
When he notices Gracie becoming much happier going away to conferences, Lawrence develops a dark fantasy that she’s been cheating on him while away. It makes him seriously horny whenever she gets home after a trip.
But then Gracie figures out the reason for Lawrence’s newfound desire—and she tells him she intends to act on it by actually cheating on him at conferences.