Doujin

Here is the giant master list of the Doujin on this blog if you are too lazy to look in the tags! :)

Kuroshitsuji/Black Butler 

Recess R18
Unclear R18 English
Chesire R18 English
Milky R18
Macchiato R18 Japanese
Dress Room R18 Japanese
Devil Blooms Anthology R18 Japanese

Decadance in Nacht (R-15) English

Dance A Waltz (R18) Japanese

Ciel Magika (PG-13) Japanese

Childcare Diary, Kitty Cat Edition (PG-15) Japanese

Candy Sweet (R18) Japanese [Sebastian x Ciel]

Charles (R18) Japanese [Sebastian x Ciel]