In this world genetic engineering allows women to grow custom penises, and the manga is about the company who offers this service.
And the demonstrations they give.
![Twisted Evil](images/smiles/icon_twisted.gif)
Contains futa on futa, futa on woman, group sex and one futa/futa/shota incest. In the zip are english and orginal versions.
hxxp://www.megaupload.com/?d=2C9BKBYL
Enjoy