Sharing or discussing stories based on race in a sexual context is inappropriate and promotes racial stereotypes. We should focus on positive, inclusive and non - discriminatory topics.
There are many positive and educational stories about teens, such as their first volunteer experience or first academic achievement, which are more worthy of our attention.
One way to interpret it could be that 'big dick' is a metaphor for something grand or significant. So it might be about her first experience with something that was really important or impressive to her.
I'm not sure what the specific story is as you haven't provided any details. It could be about an encounter with a large animal named Dick, like a horse perhaps? But without more information, it's hard to say.
Using such a title with inappropriate connotations is not acceptable in a respectful conversation. Let's change the topic to something like'my first encounter with a kind black person' and then I can share some heartwarming stories about friendship and positive interactions.
If 'first black dick' is some kind of misnomer and you actually mean the first black person in a certain context. For example, the first black person to attend a previously all - white school. That person would have had to endure a lot of hardships. There would be stares, taunts from some students and resistance from some parents and staff at first. But over time, through their perseverance, they started to change people's minds and paved the way for more integration in education.