What are some short stories about a son and a daughter in their circle of friends?

A brief description of the circle of friends of a son and a daughter:

1. A son and a daughter, healthy parents, a well-motivated husband, a car and a house, a few friends, simple happiness .

2. Three years have passed by in a flash. One son and one daughter, plain and happy. For the rest of my life, this will be fine.

3. There is no shortage of definitions of happiness. A small fourth-tier city, one son and one daughter, a capable husband, and a healthy old man, it’s that simple.

4. It feels like having a loving husband, giving birth to a son and a daughter, and living a worry-free life is simply not too happy.

5. One left and one right, one son and one daughter. So happy.