Well here are all my uploaded doujins for futanari.
Starting with Rebis.
The Great Work of Alchemy vol.1 (Rebis)
http://www.megarotic.com/?d=0UDYXAIP
The Great Work of Alchemy vol.2 (Rebis)
http://www.megarotic.com/?d=N01R7U68
The Great Work of Alchemy vol.3 (Rebis)...