Too many fics to count now! Yay! Please go to the submission information site and submit some more!
Kudos if you do!
G:
PG:
Dreaming of Him (sequel to Welcome to the Club)
Outed (sequel to Dreaming of Him )
PG13:
Welcome to the Club (sequel to Happy Birthday)
R:
The Seduction of Severus Snape
Use it Wisely (series with Let the Games Begin, Mercurial, and An Understanding)
Here Comes the Snake (series with Shedding Skin)
Morbid Tomorrow (Series with Transplendancy)(warning, vague DM/HP)
NC17:
Heavenly Blue warning: SS/RW