Misunderstanding

My wife knows I have a great appitite for sex, more than she can stand. She proposed that I start "taking care of it" myself. After a few months of masturbating and a few hundred dollars worth of toys she offers me the option, since she doesn't like anal that it won't be considered cheating, she just doesn't want to see the other person. So a few months go by and she notices a waning in my cravings. One night she comes home early to surprise me. We didn't hear he come through the front door, and she heard us in the bedroom. She became curious and tried to sneak a peek. She opened the door to a man finishing inside my ass and says, "What are you doing!?" I replied, "You said anal isn't cheating."
She smiled and laughed, "I meant other women... " "Now you tell me after the sixth guy..." I said pointing to the patio outside our bedroom. Five other men standing outside smoking, still sweaty.