I created this gallery to be some sort of sample, some pictures are parts of big galleries. The sources that I know are:
Img 3 is by Potato House. I recommend it to any Futanari fan. Img 6 is from Dusty Heaven. Img 10,12,13 and 14 is from Maruchiro. He is a superb artist.
I knew Img 20's source, but I forgot. // It is by Usatarou. Img 26 is by Doug Winger.
@ Etnaguzman: if I remember correctly It should be a work of Sparrow.
Base +5, Sgtkillalot +1, S3xta_Espada +4, Nights002 +3, Maximum_Joe +18