Original request: "There is a hidden grove containing a sacred spring in the heart of the island of Great Britain, and only Arthur Kirkland, the Nation of England, can find it. Every seven years on midsummer eve, to renew a centuries-old pact, he presents himself there, naked and kneeling, awaiting the arrival of the Lords and Ladies, and King and/or Queen of the High Court of Faerie. From dusk to dusk, for one day, he will be theirs to use sexually as they see fit."
[Part 23] USUK, UK must submit sexually to the fae for one day
Request link: http://hetalia-kink.livejournal.com/22015.html?thread=93763071#t93763071
Fill -- a pound of flesh: http://hetalia-kink.livejournal.com/22015.html?thread=93980159#t93980159