My pet fanon is that they've also got a long-running Jefferson vs. Hamilton debate that they've been carrying on for years

I love this scene in "Three Times Steve and Tony had Sex". *grins* It made me a bit sad that I don't know even a tenth as much U.S. history as I would need to to write something similar. I'll just have enjoy it when it appears in yours and seanchai's fic. *g*