Well, if we assume 'bj' is a place, here's a story. The naive little daughter, Amy, lived in a small town. One day, she heard about a wonderful event happening in bj. She was so excited that she begged her parents to take her there. Her parents finally agreed. When they arrived in bj, Amy was amazed by all the new things she saw. She made new friends and learned about different cultures. It was a great adventure for her and she grew up a bit more worldly after that experience.
I'm not sure specifically what the 'little daughter bj story' is. It could be a very personal or local story. Maybe it's about a little daughter in a place named BJ, but without more context, it's hard to say more.
I'm not sure specifically what the 'giving the gift of life daughter bj story' is. It could be about a daughter in Beijing (assuming bj stands for Beijing) who is involved in some way in giving the gift of life, like organ donation or perhaps saving someone's life in a heroic act. But without more context, it's hard to say for sure.
No, it doesn't seem to be a common type of story. The term 'daddys little girl' is a familiar concept, but the addition of 'bj' makes it very unclear and not something that is typically seen in mainstream story - telling.
I'm not sure specifically which 'two little sisters' story you are referring to. There could be many stories about two little sisters. It could be a story about their adventures, their relationship, or something they experienced together. More context would be helpful.
One possible theme could be self - sacrifice. If the daughter in the story is giving the gift of life, she is likely sacrificing something of her own for the benefit of others.