All Wrapped Up In You by halfshellvenus -- (Sam/Dean, NC-17) -- Dean offers Sam the kink of his choice for Christmas. This manages to be funny, sexy, sweet, hot AND loving all at one time.
A Passion Play For You by estei -- (Implied Sam/Jess, Sam/OMC, Jess, NC-17) -- Jess wants to see Sam with a man and he agrees. (I know. You're looking at this thinking "Is Wendy really reccing Sam/OMC???" But I AM. And it's smoking hot. And you should read it.)
Into the Woods by plutogirl10 -- (Sam/Dean, NC-17) -- 15-year-old Sam wants his brother but Dean is resisting. Again, this is sweet and loving but with just enough angst that the ending breaks my heart a little.