If you just use your mouth...it's not cheating, right? Woman's mouth lies... Cuckold story that starts from mouth Blowjob NTR

I and Kana were dating since they were in college and are now living together with the assumption that they are getting married. She's cute, kind, has a good figure, and would be happiest if she could get married. Without her realising, she will have to do with him! With my best friend Nitta! I can't believe it's going to happen that way... Where does it come from? I often hear this story, but I thought it wasn't that different for each person, even though they differed. I thought so too was me, and so was her. I wanted that to happen.