No, it is completely inappropriate. Such a story involves vulgar and inappropriate sexual content that goes against moral and ethical norms in most social settings.
Definitely not normal. In a healthy family relationship, there is respect for personal privacy. Her behavior crosses the line of normal parental - child interactions. You need to take steps to stop this behavior as soon as possible.
Definitely not. It violates basic moral and ethical standards. We should uphold respect for others, especially in the context of educational professionals. There's no place for this kind of vulgar and untrue statement in a civilized society.
Maybe he was just really nervous. First times are often nerve - wracking, and that can lead to mistakes or not performing as well as expected. For example, he might not have been fully prepared or understood what was required.
My first dog Dick was a wonderful Labrador. He was always full of energy. Every morning, he would wake me up by licking my face. We used to go for long walks in the park. Dick loved chasing squirrels, though he never caught one. He was also very friendly with other dogs and people. He was truly a great companion.
No, it is completely inappropriate. Such topics are private and inappropriate to share with a parent, especially a mother. It violates social and family norms of propriety.