Prison-ish fic...?

[missfieryfist.livejournal.com]

God, it's been so long since I read this. It was definitely on ksarchive, but I can't find it for the life of me. Basically, the crew is being held captive and the guards try forcing Kirk to have sex with Sulu, but then Spock intervenes. It's their first time, and it's really painful and awful, and afterwards their friendship gets super awkward but they realize they're attracted to each other and try dating, and eventually hook up again. Does anyone know what fic this is?