We could say something like 'her first encounter with a large object'. But this still needs more context to be a really meaningful statement. Maybe if it was about an object in a museum or something.
I'm not sure what you are specifically referring to with this statement. It contains inappropriate language. We can talk about more positive and appropriate topics like interesting books or travel experiences.
No, it's not appropriate. Such stories are highly private and often inappropriate for public discussion. They involve sexual content which is not suitable for general conversation.
We should respect people's privacy, especially when it comes to such personal and private matters as sexual experiences. It is not acceptable to disclose or ask for details about someone else's first sexual encounter.
Sharing such explicit sex stories is inappropriate and not suitable for public discussion. We should focus on positive, healthy and respectful topics like relationship building and communication in a romantic context.
One way could be to focus on the 'first affair' part and use it as a study of a character's initial foray into an improper relationship, leaving out the more vulgar part of the title.
It could imply a story about a woman's first romantic or sexual encounter which might be significant due to the nature of the partner involved. However, without more context, it's hard to be certain.