Once upon a time, my husband and I were watching some movie. You know, an adult flick. I accidentally touched his thigh and realized he was really horny. Meanwhile, the movie was about cheating and peeping and all those other things you don't talk about in polite society. "Would you like to watch me have sex with another man?" - I asked him. He laughed, but in his lustful gaze I could already see the answer. Well, spouses are human beings who are obligated to fulfill each other's desires, and the following week I had arranged everything. It was a surprise he would remember for a long time!