Gah, exactly what the title says an not much else. Can be penetrative sex or not, as long as it's rushed, America's on bottom, and there's a fear of being caught by the other nations.
I would prefer if it wasn't USUK, because I tend to not like that pairing, but everything else is fine.

Bonus: Nation A is France, Germany, or Romano.
Bonus: America's hands are tied with a scarf.
Bonus: They are caught, in the end.