I'm pretty sure you've all (whoever you are) already read this, but I hadn't and wow was I blown away. I read like a mad woman whilst Keets screamed at me to catch up (and then I ended up ahead of her mwahahaha!)

http://www.asianfanfics.com/story/view/139013/love-like-chocolate-donghae-eunhae-eunhyuk-sihae-siwon-2jun-hyukhae