If you just use your mouth...it's not cheating, is it? The story of a creampie cuckold story that begins with mouth and begins right before marriage is over

I and Nanami have been dating for three years. Nanami is beautiful, kind, has a good figure, and is honestly quite popular. Nanami accepted my dull proposal. I'm extremely happy. ...I was happy...that's it! By the way, he! I couldn't believe it would happen... Where does it come from? I often hear this, but although each person is different, I thought it didn't change that much. A woman's mouth lies! A cuckold story that begins with your mouth.