Go and check out the massive cornucopia of prompts over at the 15th porn battle! I don't know if I'll get anything written myself (though I hope to do at least one fic), but there's so many options and it's always fun to read the stories by others. There's an LJ and a DW post; as well you can use open id on the DW page. Go forth and write porn! Open until February 13th.
And if you want to write me some Sam/Jack/Malcom Barrett or Sam/Jack/Daniel, I'd love you forever.