A Game with Your Father and Daughter

When I see a good-looking man in his 40s while walking on the street, I always take a second look. It's not that I have a crush on them, I don't like the uncle type like those young ladies nowadays. After all, I was only in my early teens. . We haven't reached the stage of incipient love yet. I think about it more deeply than they do. I was wondering, could they be my biological father?