http://whereupon.livejournal.com/105970.htmlBulletproof by
whereupon Sam/Dean, R, 5039 words
Ffffffffffffffff I fucking so love this fic. FUN and silly and adorable and hot and with some of the best voices for them like ever, with the best rolling roughhousing/bickering ever and guh hotness at the end. Love it. Lovely love love. Man, so many people in this fandom that I think "goddamn, I could *never* write as awesome as that." I *so* will reread this one, lots.