[YH5050]

Need help, I was reading a story about a wife that found her husband's hidden catfight porn vids. Husbands name was Chris. Then she found a chat between Chris and a husband/wife. The wife's name was Karen.  I believe Chris' wife's name might have been Brenda. They met to fight at a business function then headed to the room where they were to fight Chris' wife's  first ever fight for him. Can anyone help me with the title or author?