Prior To by quirke . PG.
Countdown to Forever by akai_kotoba . PG.
Perfectionist by oh_thexirony . G (drabble).
Requiem for a Dream by quirke . PG.
The Light Beyond the Dark by forsakenwk . R. Chapter 4.
Never Again by reunionstory. PG. Chapter 15.
Request of a Lover by 7chan . PG-NC17. Chapter 41. (Okay, I think someone recommended this to me a while ago, but I never got around to reading it. And O.M.G. the JaeHo is absolutely full of tension, smex, angst, and just soooo soooo good. I read all 41 chapters last night in one sitting, and just want to read them again. I was totally spellbound. It's still a work in progress, but what's written so far is just enough to wet the appetite. I'm on the edge of my seat waiting for the next chapter. Also involves some great YooSu)