[Kentarou] Uchi no Gakuen no Suieibu no Joshitachi ga Mesuana o Hiraite Shonben Suru Tokoro o Misete Kureru bakari ka Asedaku Ecchi made Sasete Kureru Ken
the urethra inaccuracy really fucks this whole set up, you would at least think he would have tried to find some kinda real reference somewhere. this is one reason why censorship is bad, give people miss understood ideas of the human anatomy. i see a few manga's here and there with depictions of people miss drawing various parts and of course that leads the other person usually a girl to show the drawer how a real pussy look like and they end up fucking. anyways, just didn't know that problem was really as bad as its depicted in the manga's till now.