I see your Bioshock fandom listed here and would love to do one. Dunno how I feel about Booker X Elizabeth since... well... ending. But I'd like to try an Elizabeth X Jack one (even though I never played the original, I'm quite versed in it's lore thanks to research and wiki pages) or an OC X OC one. The OC X OC one I had in mind were citizens of Rapture, or Columbia, whichever city you wanted, in the middle of all the chaos trying to escape the city. 

PM me if you're interested! :D