When I was young, I was in the early 1980s. People had very little spare time. There were very few families with TV. Except for occasionally going to their relatives and friends' houses to chat after dinner, most of the time they would pack up and go to the kang to sleep after dinner. The same was true for our family of three. At that time, our houses were all big houses and kangs. Usually, the whole family would sleep on the same kang. I was often woken up in the middle of the night. When I opened my eyes and looked at the moonlight, I found that my father was pressing on my mother and swaying back and forth. Sometimes when I woke up, I sat up in a daze. When my mother saw that the noise woke me, she came over naked, hugged me in her arms and gently patted my back to coax me to sleep. At this time, the excited father would come to the back of my mother who was standing sideways and continue to sway. At this time, the excited father would come to the back of my mother who was standing sideways and continue to sway.