Looking for a Doujin

[david_grana]

Hi igiari, long time lurker, first time poster here ^^ In my quest for some good Franziska/Adrian smut, I stumbled upon the following wonderful image lifted out of a doujin (cut as it's very NSFW):



Any help in sourcing this masterpiece - be it through artist or doujin name, or an actual link to the comic itself, would be awesome. Thanks bunches :D