Ok, translation added, but don't expect much. Btw. Shizuru speaks Osaka-Ben (I think), but don't wanted to strech that into the translation. For the manga part: I have no clue, no sign of author/book on this page :(
Why?I have...a weird feeling...Believe me, when it's inside, it will feel very good (a lie)Natsuki..
if you aren't embarrassed, please leave it to me...ok?With this...Shi...Shizuru...please don't...move it!!This tool really loosened this up