Homework: thinking about the ins and outs of a possible story-line (whether in a story, poem, drama, novel), Here's a sort of summary
Confrontation scene: Why didn’t you tell me? You didn’t know? One of you didn’t know? One of you did? Was it adultery? Who is uncle Brian, anyway? Was I stolen from a pram? Mix-up in the hospital? Chucked away? Adoption?
First there’s the three of them in this conversation.
Then there’s a flashback in the mind of one parent as they look out of the window and timelessly see a deed.
Then there’s a flashback in the mind of the other parent seeing or hearing or overhearing something.
No, the child didn’t mean it. April fool. Or did he/she? Or is it in fact true?
Tests in the offing? Destruction of relationships? Don’t worry Mum, don’t worry dad: it doesn’t matter.