My wife Ikumi's best friend Hitomi came to stay with us. Hitomi's relationship with her husband isn't going well, so she's staying here for a few days to relax. Even though she's my wife's friend, I was excited to be spending time under the same roof with a woman who was not my wife's. My wife was in a good mood and had a few drinks, so she went to bed early. I couldn't fall asleep, so I went to the bathroom, where Hitomi had just gotten out of the bath and was getting changed. My crotch got hot when I saw the naked body of a woman other than my wife. And the next thing I knew, I was holding Hitomi tightly.