Mio, my stepson’s wife, who is very stylish and plain. At some point, I began to fantasize about having an affair with my stepson’s wife in my head. The two of us would take a bath together, and I would have her do all sorts of things for me, or I would have sex with Mio next to my tired stepson. The more I fantasized, the more I lost sight of the difference between fantasy and reality…