Specknose almost 10 years ago I'm gonna throw this out there because this is IMPOSSIBLE to find, but if anyone can locate this volume I would be eternally grateful.
schoolfreak32 about 6 years ago Adult Comic (成年コミック Seinen Komikku) presented by Nattou☆Mania (納豆☆マニア) "Famimania" (ファミマニア) by Syoji Sakura (咲良将司 SAKURA Shouji). Google the kanji.