Hi!

In this fic, Dean is married to Cas and not by his choice. I believe Cas was a king and the one scene i remember vividly was that Cas has sex with dean thinking its consensual although Dean feels coerced into it. Cas didnt use oil (lube) or prep and i think Dean gets sick and the healer discovers his internal injuries from sex.
In the end they do get together though.

Please help!