There shouldn't be. Our society values healthy, consensual and proper relationships. A story like this goes against the basic values of respect, propriety and legality in human relationships.
This is an extremely awkward and inappropriate situation. It goes against the norms of a healthy family relationship. You need to communicate your discomfort clearly. You can say 'Mom, this is not a topic that is suitable for discussion between us. Our conversations should be positive and appropriate. I hope this never comes up again.' If possible, try to distance yourself from such inappropriate conversations in the future and focus on building a more appropriate and healthy relationship.
We should avoid such inappropriate topics. Instead, we could focus on positive family stories like 'times when mom showed great kindness' or 'instances of mom's selfless love'.
A great memory could be when the mom took the son to his first baseball game. They cheered for their favorite team, ate hot dogs and shared in the excitement of the game. It was a special day that the son will always remember as it was a time when he felt really close to his mom.
The story could be about a mom and her son having a wonderful day at the sea. Maybe they are building sandcastles, looking for seashells or just enjoying the beautiful view of the ocean. It could also be a story of how they face some challenges at the sea, like a sudden storm, and how they overcome it together.
One common scenario could be when the son is sneaking snacks before dinner. Mom catches him with his hand in the cookie jar, literally. Another might be when the son is staying up late playing video games instead of sleeping, and mom walks in on him.
One story could be about a mom who taught her son about the stock market from a young age. They started with a small amount of money, investing in stable blue - chip stocks. The son learned the importance of research and patience. Over time, they saw their investment grow steadily. They also diversified into real estate investment trusts (REITs), which added another layer of stability to their portfolio.