[There may be a pause as she considers the options over telling him or not. The story she had still had a way to make the hairs on her arms stand in perfect salute. It wsn't a story for the faint of heart, she believes, but she supposes it'll be up to the other boy to decide.]

Um, it's a long story. Just that something happened in my childhood...

[She was eleven at the time of the story. With a forced grin.]

Do you wanna hear the tl;dr version or the straight to the point one?