Responses
I don't have this one on my urethral insertion list. Closest I have is a sadist guy that draws and designs jewelry: http://www.mangago.me/read-manga/aigan_kyoudai/ (Chap. 2)
Maybe this one? Just finished reading this, it has urethral insertion. http://www.mangago.me/read-manga/junai_caricature/
Im looking for a manga where the uke is a super masochist and he hires a sadist guy to draw hentai mangas. And at the end I think they where doing a urethra insertion scene.. Does someone know this? if so thanks