Instructions: If you've never heard of the LiveJournal community 1sentence - what you do is, you take the prompt you recieve and write a sentence with it. In this case, you take the two characters + the prompt and write what comes to you. I highly recommend going to the community if you want to know what it looks like.
On another note, you DO NOT have to write 1sentences - you can use the prompt to write a fic of any length.