It could be that she thinks you really like those stories, even if you don't show it clearly. Also, some parents tend to repeat stories as a way of instilling certain values or lessons that are in those stories. For example, if it's a story about honesty, she might keep repeating it to make sure you understand the importance of being honest.
Maybe she just has a limited repertoire of stories. Or perhaps those are her favorite stories and she wants to share them over and over again because they hold special meaning for her.
Your mom might be in a bit of a rut. She's used to telling those same stories and doesn't think to find new ones. Another reason could be that she wants to create a sense of family tradition through these repeated stories. It gives you both something to bond over and remember from your childhood.
Sometimes, when there are fewer new experiences in life, people tend to go back to the old ones. Your mom might not have a lot of new things to talk about, so she keeps repeating the same stories which are familiar and comforting to her.
It could be that he really likes those stories and thinks you might not have fully grasped them the first time. So he tells them again. He might also be forgetful and not realize he has already told you those stories.
Mom tells stories to make us fall asleep easier. The soft voice and interesting plots can calm us down.
He might not be aware that he's repeating himself. Our memories can be a bit fuzzy, and he may think it's a new story to share.
She might be over - curious. Some moms are just eager to know everything about their kids' lives and might accidentally overstep when it comes to your friends' stories.
Well, it might make her uncomfortable. Spanking is a rather sensitive topic and she might not want to hear about it. Also, she could get worried or think that there's something inappropriate going on.
Sometimes, people repeat stories because they are seeking validation. By retelling the story, they hope to get the same positive response from you as they did the first time. It could also be that they are trying to emphasize a point or a feeling that was associated with the story, like how much fun they had or how scared they were. So, they keep repeating it to make sure you understand the significance of the event.
She might be trying to teach you some important values or life lessons through the story. For example, if it's a story about honesty, she wants you to be an honest person. It could also be a way for her to share her memories and experiences with you, so that you can understand more about her and your family's history.
Maybe they just really love those stories and think they're worth sharing multiple times.
It could be that they have a limited number of experiences to draw from or they have a strong emotional connection to those particular stories. Also, sometimes people repeat stories because they think others haven't really listened or understood the first time.