My first thought was Darcy Lewis and Clint Barton, but those are Thor characters. I can do Captain America too! Steve, Peggy, the crew, etc. Tony Stark too if you like. :)

Could you tell me, please:
Fandom?
Characters or pairings?
Likes (genres, kinks/cliches, etc)?
Dislikes?
Crossovers Y/N?

(You can answer it a few different times if there's more than one fandom you'd be willing to do. That's where the crossover question comes in.)